Palo Verde Ranch Project

Quino Checkerspot Butterfly Survey Report

May 13, 2015

Prepared for: Prepared by: Cal Alpine LLC HELIX Environmental Planning, Inc. 4675 MacArthur Court, Suite 1550 7578 El Cajon Boulevard Newport Beach, CA 92660 La Mesa, CA 91942

I certify that the information in this survey report and attached exhibits fully and accurately represent our work:

Jasmine Bakker Erica Harris

Rob Hogenauer Palo Verde Ranch Project Quino Checkerspot Butterfly Report

TABLE OF CONTENTS

Section Title Page

1.0 INTRODUCTION ...... 1

2.0 METHODS ...... 1 2.1 Habitat Assessment ...... 1 2.2 Focused QCB Surveys ...... 1 2.3 Nomenclature ...... 2

3.0 RESULTS ...... 2

4.0 REFERENCES ...... 3

LIST OF APPENDICES

A Survey Information B Survey Forms and Field Notes C Butterfly Checklist

LIST OF FIGURES

No. Title Follows Page No.

1 Regional Location ...... 2 2 Project Vicinity Map (USGS Topography) ...... 2 3 Aerial Photograph ...... 2 4 Quino Checkerspot Butterfly Host Plant Locations ...... 2

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1.0 INTRODUCTION

This report documents the results of HELIX Environmental Planning, Inc.’s (HELIX’s) 2015 Quino checkerspot butterfly (Euphydryas editha quino; QCB) survey of the Palo Verde Ranch Project site (project). HELIX biologists performed the protocol survey (comprised of 7 site visits) under HELIX’s Threatened/Endangered Species Permit No. TE778195.

The approximately 540-acre study area for the project is located within the east-central portion of unincorporated San Diego County, California (Figure 1). It is further located within Sections 1 and 2 of Township 16 South, Range 2 East of the U.S. Geological Survey (USGS) 7.5-minute Viejas Mountain quadrangle maps (Figure 2). Elevations within the study area range between approximately 1,480 feet to 2,250 feet above mean sea level. An aerial photograph of the parcel in included as Figure 3.

2.0 METHODS

2.1 HABITAT ASSESSMENT

A habitat assessment was conducted on February 11, 2015 by HELIX biologist Jasmine Bakker The majority of the project site and surrounding habitat is characterized by dense southern mixed chaparral which forms a closed canopy and is inaccessible to pedestrian access. This habitat is unsuitable for QCB and is excluded from the survey area based on the current USFWS Survey Guidelines (USFWS 2014). Approximately 12.9 acres of the 540-acre study area, roughly 2 percent, were mapped as potentially suitable habitat during Ms. Bakker’s assessment. The current survey area for the 2015 QCB survey is depicted in Figure 4. The mapped survey area consists of small pockets of bare ground surrounded by dense shrubs. However, large portions of the mapped survey area still consist of fairly dense shrubs which required surveyors to physically move branches in order to navigate the area; areas too dense to navigate were not surveyed during the site visits.

2.2 FOCUSED QCB SURVEYS

Seven protocol site visits were conducted by Ms. Bakker and HELIX biologists Erica Harris and Rob Hogenauer (Table 1). HELIX biologists Tara Baxter, Laura Moreton, Benjamin Rosenbaum, and George Aldridge participated as supervised individuals. Pedestrian surveys consisted of walking roughly parallel transects through appropriate habitat and identifying butterflies by sight and with the aid of binoculars. Larval host plants were mapped with the aid of hand-held Global Positioning System (GPS) units, and potential nectar plant species were also documented (Figure 4). Surveyors covered between 1 and 5 acres per hour.

In accordance with the current QCB guidelines, the surveys began the third week of February and were anticipated to continue to the second Saturday in May. Specifically, surveys were conducted between February 17 and March 31, 2015. The first QCB in Riverside County was reported at Oak Mountain by Adam Malisch on February 26, 2015 (Quino Biologists United 2015). The first QCB in San Diego County was reported at Marron Valley by Alison Anderson

Quino Checkerspot Butterfly Survey Report for the Palo Verde Ranch Project / CAA-01 / May13, 2015 1

on March 12, 2015; however, additional sightings of QCB within San Diego County were limited. Protocol surveys were terminated prior to the end of the survey period due to the on-site condition of host plants and nectaring resources in addition to the lack of regional QCB sightings. Few nectaring resources were observed on the March 31 survey and the number of host plants present was significantly lower than during previous surveys. Host plants and the majority of nectaring plants had already set seed and had begun to senescence.

2.3 NOMENCLATURE

Identification of butterflies was based on personal knowledge, museum specimens, the San Diego Natural History Museum website, and field guides by Shiraiwa (2009) and Glassberg (2001). Other nomenclature for this report is taken from Holland (1986) and Oberbauer (2008) for vegetation communities and Baldwin et al. (2012) for plants.

3.0 RESULTS

Dates, times, and weather conditions at the start and finish of each site visit are presented in Appendix A. Copies of field notes taken are provided as Appendix B. A list of total butterflies observed during the 2015 protocol QCB surveys is included as Appendix C.

The 540-acre study area is comprised of 7 vegetation communities: freshwater marsh, southern cottonwood-willow riparian forest, coast live oak woodland, southern willow scrub, southern mixed chaparral, chamise chaparral, and Diegan coastal sage scrub. Two larval host plants were observed during the survey in various locations: dwarf plantain (Plantago erecta) and purple owl’s clover (Castilleja exserta). Host plant locations are illustrated in Figure 4. Dwarf plantain was primarily found along the main access road and adjacent disturbed areas. Purple owl’s clover was present in dense stands within natural openings in the chaparral and as scattered individuals along portions of the main access road. In addition, potential nectaring resources (e.g., popcorn flower [Cryptantha/Plagiobothrys spp.], fiddleneck [Amsinckia menziesii var. intermedia], California buckwheat [Eriogonum fasciculatum], and ground pink [Linanthus dianthiflorus]) were observed during the survey.

Surveyors observed a total of 273 individuals during the 7 site visits comprised of 15 butterfly species; however, no QCB was observed. While the QCB flight season had a very limited number of QCB observed across its range, QCB host plants and nectaring resources were generally present in good numbers across the region. QCB host plants were generally restricted to several small open areas within dense stands of chaparral and along disturbed areas such as the main access road. Based on surveys conducted in a good habitat condition year, as 2015 appears to have been, the probability of QCB occurring on the site is considered low.

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Tijuana I:\PROJECTS\C\CAA\CAA-01_PaloVerdeRanch\Map\QCB_Report\Fig1_Regional.mxd CAA-01 05/07/15 -CL Regional Location Map PALO VERDE RANCH 0 8 N Miles Figure 1

Project Site ! I:\PROJECTS\C\CAA\CAA-01_PaloVerdeRanch\Map\QCB_Report\Fig2_USGS.mxd CAA-01 05/07/15 -CL Project Vicinity Map (USGS Topography) PALO VERDE RANCH

0 2,000 N Feet Figure 2 Via Donito

Via Dieguenos

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Via Dieguenos Calle Mia

Via Viejas

Project Site

Via Palo Verde Lago !

Corte Alejandro Old Spur Drive

Corte Verde

Corte Loma Grey Mare Court

Spanish Bit Drive

Corte Roca

Japatul Road I:\PROJECTS\C\CAA\CAA-01_PaloVerdeRanch\Map\QCB_Report\Fig3_Aerial.mxd CAA-01 05/07/15 -CL Aerial Photograph PALO VERDE RANCH

0 1,250 N Feet Figure 3 Calle Colina Roca

Via Palo Verde Lago Project Site Via Dieguenos

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Project Boundary Host Plants Plantago erecta !( 1 - 100

!( 100 - 1000 Castilleja exserta #* 1 - 100

#* 100 - 1000 I:\PROJECTS\C\CAA\CAA-01_PaloVerdeRanch\Map\QCB_Report\Fig4_QCB_HostPlants.mxd CAA-01 05/07/15 -CL Quino Checkerspot Butterfly Host Plant Locations PALO VERDE RANCH

0 700 N Feet Figure 4

4.0 REFERENCES

Baldwin, B. G., D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H. Wilken (eds.). 2012. The Jepson manual: vascular plants of California, second edition. Berkeley, CA: University of California Press.

Emmel, T.C. and J.F. Emmel. 1973. The Butterflies of Southern California. Natural History Museum of Los Angeles County, Science Series 26: 1-148.

Glassberg, J. 2001. Butterflies through Binoculars. The West. A Field Guide to the Butterflies of Western North America. Oxford University Press. New York.

Holland, R.F. 1986. Preliminary descriptions of the terrestrial natural communities of California. State of California. The Resources Agency.

Oberbauer, Thomas. 2008. Terrestrial Vegetation Communities in San Diego County Based on Holland’s Descriptions. Revised from 1996 and 2005. July.

Quino Biologists United. 2015. https://www.linkedin.com/groups/Quino-Biologists-United- 3801513?home=&gid=3801513&trk=hp-feed-group-name.

San Diego Natural History Museum website. Butterflies of San Diego County. 2002. http://www.sdnhm.org/research/entomology/sdbutterflies.html. September.

Shiraiwa, Kojiro. 2009. The Butterflies of San Diego County Introduction and Identification Guide. May

U.S. Fish and Wildlife Service (USFWS). 2014. Quino Checkerspot Butterfly Survey Protocol. December 15, 2014

Quino Checkerspot Butterfly Survey Report for the Palo Verde Ranch Project / CAA-01 / May13, 2015 3

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Quino Checkerspot Butterfly Survey Report for the Palo Verde Ranch Project / CAA-01 / May13, 2015 4 Appendix A

SURVEY INFORMATION Appendix A WEEKLY SURVEY INFORMATION

WEATHER CONDITIONS* SURVEY SITE TIME DATE BIOLOGIST RATE RESULTS VISIT (start/end) Start Stop acre/hour (ac/hr) Erica Harris 67˚F, wind 1-2 mph, 70˚F, wind 2-4 No QCB‡ 1 2/17/2015 0922/1145 5.4 George Aldridge† 0% clouds mph, 0% clouds observed Erica Harris 64˚F, wind 2-6 mph, 69˚F, wind 1-3 No QCB 2 2/24/2015 1100/1425 5.4 Tara Baxter† 5% clouds mph, 0% clouds observed Robert Hogenauer 70˚F, wind 1-3 mph, 66˚F, wind 1-3 No QCB 3 3/5/2015 Benjamin 1215/1555 3.5 0% clouds mph, 0% clouds observed Rosenbaum† Erica Harris 73˚F, wind 4-6 mph, 77˚F, wind 0-2 No QCB 4 3/9/2015 1200/1620 3.0 Tara Baxter† 0% clouds mph, 0% clouds observed Erica Harris 68˚F, wind 1-4 mph, 73˚F, wind 2-5 No QCB 5 3/20/2015 1205/1545 3.8 Shana Rodriguez † 50% clouds mph, >5% clouds observed Jasmine Bakker 62˚F, wind 0-2 mph, 76˚F, wind 0-2 No QCB 6 3/24/2015 0915/1325 3.12 Laura Moreton † 0% clouds mph, 0% clouds observed 73˚F, wind 1-3 mph, 83˚F, wind 1-2 No QCB 7 3/31/2015 Erica Harris 1030/1330 4.3 0% clouds mph, 5% clouds observed

A-1

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A-2 Appendix B

SURVEY FORMS AND FIELD NOTES

2015 Quino Checkerspot Butterfly Survey Form Surveyor: Erica Harris & George Aldridge (supervised) Date: 2/17/15 Site Name: Palo Verde Site Visit No: 1 Acres Surveyed 13 Survey Time: 2.4 hours Acres per Hour: 5.4 Other Surveyors Present:

Field Conditions Time (24 hr) Temperature (˚F) Wind Speed (mph) Cloud Cover Start 0920 67 1-2 0% End 1145 70 2-4 0% Start End

Vegetation Communities Surveyed (inc. dominant spp.) Chamise Chaparral, Diegan coastal sage scrub

Host Plants Obs. Nectar Plants Obs. dwarf plantain (Plantago erecta) popcorn flower (Cryptantha/Plagiobothrys spp.) X purple owl’s clover (Castilleja exserta) goldfields (Lasthenia spp.) snapdragon (Antirrhinum coulterianum) goldenstar (Muilla spp.) birds-beak (Cordylanthus rigidus) fiddleneck (Amsinckia menziesii var. intermedia) woolly plantain (Plantago patagonica) onion (Allium spp.) Chinese houses (Collinsia spp.) buckwheat (Eriogonum fasciculatum) ground pink (Linanthus dianthiflorus)

Butterfly Species No. Butterfly Species No. Checkerspots Hairstreaks California patch (Chlosyne californica) great purple hairstreak (Atlides halesus corcorani) Gabb’s checkerspot (C. gabbii) brown elfin (Callophrys augustinus) Quino checkerspot (Euphydryas editha quino) bramble (perplexing) hairstreak (C. dumetorum affinis) chalcedon checkerspot (E. chalcedona chalcedona) gray hairstreak (Strymon melinus pudica) Leanira checkerspot (Thessalia leanira wrighti) Ladies/Admirals Mylitta crescent (Phyciodes mylitta) California sister (Adelpha bredowii californica) Blues Lorquin’s admiral (Limenitis lorquini) western pygmy-blue (Brephidium exila) west coast lady (Vanessa annabella) western tailed blue (Everes amyntula) red admiral (V. atalanta rubria) 1 southern blue (Glaucopsyche lygdamus australis) painted lady (V. cardui) Edward’s blue (Hemiargus ceraunus gyas) American (Virginia) lady (V. virginiensis) Acmon blue (Icaricia acmon acmon) unidentified lady (Vanessa sp.) 16 marine blue (Leptotes marina) Swallowtails unidentified blue 1 pale swallowtail (Papilio eurymedon) Whites western tiger swallowtail (P. rutulus) Sara orangetip (Anthocharis sara sara) anise swallowtail (P. zelicaon) desert (Felder’s) orangetip (A. cethura) Miscellaneous common California ringlet (Coenonympha californica) monarch (Danaus plexippus) cabbage white (Pieris rapae) common buckeye (Junonia coenia grisea) checkered (common) white (Pontia protodice) mourning cloak (Nymphalis antiopa) spring white (P. sisymbrii) Skippers unidentified white 2 funereal duskywing (Erynnis funeralis) Metalmarks mournful duskywing (Erynnis tristis) Behr’s metalmark (Apodemia mormo virgulti) fiery skipper (Hylephila phyleus) Wright’s metalmark (Calephelis wrighti) white (common) checkered-skipper (Pyrgus albescens) Sulphurs Other orange sulphur (Colias eurytheme) sleepy orange (Eurema nicippe) cloudless sulfur (Phoebus sennae marcellina) unidentified sulphur Column Subtotal 3 Column Subtotal 17 Total 20

2015 Quino Checkerspot Butterfly Survey Form Surveyor: Erica Harris & Tara Baxter (supervised) Date: 2/24/15 Site Name: Palo Verde Site Visit No: 2 Acres Surveyed 13 Survey Time: 2.4 hours Acres per Hour: 5.4 Other Surveyors Present:

Field Conditions Time (24 hr) Temperature (˚F) Wind Speed (mph) Cloud Cover Start 1100 64 2-6 5% End 1425 69 1-3 0% Start End

Vegetation Communities Surveyed (inc. dominant spp.) Chamise Chaparral, Diegan coastal sage scrub

Butterfly Species No. Butterfly Species No. Checkerspots Hairstreaks California patch (Chlosyne californica) great purple hairstreak (Atlides halesus corcorani) Gabb’s checkerspot (C. gabbii) brown elfin (Callophrys augustinus) Quino checkerspot (Euphydryas editha quino) bramble (perplexing) hairstreak (C. dumetorum affinis) chalcedon checkerspot (E. chalcedona chalcedona) gray hairstreak (Strymon melinus pudica) Leanira checkerspot (Thessalia leanira wrighti) Ladies/Admirals Mylitta crescent (Phyciodes mylitta) California sister (Adelpha bredowii californica) Blues Lorquin’s admiral (Limenitis lorquini) western pygmy-blue (Brephidium exila) west coast lady (Vanessa annabella) western tailed blue (Everes amyntula) red admiral (V. atalanta rubria) southern blue (Glaucopsyche lygdamus australis) painted lady (V. cardui) Edward’s blue (Hemiargus ceraunus gyas) American (Virginia) lady (V. virginiensis) Acmon blue (Icaricia acmon acmon) unidentified lady (Vanessa sp.) 25 marine blue (Leptotes marina) Swallowtails unidentified blue pale swallowtail (Papilio eurymedon) Whites western tiger swallowtail (P. rutulus) Sara orangetip (Anthocharis sara sara) anise swallowtail (P. zelicaon) desert (Felder’s) orangetip (A. cethura) Miscellaneous common California ringlet (Coenonympha californica) 1 monarch (Danaus plexippus) cabbage white (Pieris rapae) common buckeye (Junonia coenia grisea) checkered (common) white (Pontia protodice) mourning cloak (Nymphalis antiopa) spring white (P. sisymbrii) Skippers unidentified white 1 funereal duskywing (Erynnis funeralis) 1 Metalmarks mournful duskywing (Erynnis tristis) Behr’s metalmark (Apodemia mormo virgulti) 3 fiery skipper (Hylephila phyleus) Wright’s metalmark (Calephelis wrighti) white (common) checkered-skipper (Pyrgus albescens) Sulphurs Other orange sulphur (Colias eurytheme) sleepy orange (Eurema nicippe) cloudless sulfur (Phoebus sennae marcellina) unidentified sulphur Column Subtotal 5 Column Subtotal 26 Total 31

2015 Quino Checkerspot Butterfly Survey Form Surveyor: Robert Hogenauer & Benjamin Rosenbaum (supervised) Date: 3/5/15 Site Name: Palo Verde Site Visit No: 3 Acres Surveyed 13 Survey Time: 3.67 hours Acres per Hour: 3.5 Other Surveyors Present:

Field Conditions Time (24 hr) Temperature (˚F) Wind Speed (mph) Cloud Cover Start 1215 70 1-3 0% End 1555 66 1-3 0% Start End

Vegetation Communities Surveyed (inc. dominant spp.) Chamise Chaparral, Diegan coastal sage scrub

Host Plants Obs. Nectar Plants Obs. dwarf plantain (Plantago erecta) popcorn flower (Cryptantha/Plagiobothrys spp.) X purple owl’s clover (Castilleja exserta) X goldfields (Lasthenia spp.) snapdragon (Antirrhinum coulterianum) goldenstar (Muilla spp.) birds-beak (Cordylanthus rigidus) fiddleneck (Amsinckia menziesii var. intermedia) woolly plantain (Plantago patagonica) onion (Allium spp.) Chinese houses (Collinsia spp.) buckwheat (Eriogonum fasciculatum) X ground pink (Linanthus dianthiflorus)

Butterfly Species No. Butterfly Species No. Checkerspots Hairstreaks California patch (Chlosyne californica) great purple hairstreak (Atlides halesus corcorani) Gabb’s checkerspot (C. gabbii) brown elfin (Callophrys augustinus) Quino checkerspot (Euphydryas editha quino) bramble (perplexing) hairstreak (C. dumetorum affinis) chalcedon checkerspot (E. chalcedona chalcedona) gray hairstreak (Strymon melinus pudica) Leanira checkerspot (Thessalia leanira wrighti) Ladies/Admirals Mylitta crescent (Phyciodes mylitta) California sister (Adelpha bredowii californica) Blues Lorquin’s admiral (Limenitis lorquini) western pygmy-blue (Brephidium exila) west coast lady (Vanessa annabella) western tailed blue (Everes amyntula) red admiral (V. atalanta rubria) southern blue (Glaucopsyche lygdamus australis) painted lady (V. cardui) 3 Edward’s blue (Hemiargus ceraunus gyas) American (Virginia) lady (V. virginiensis) Acmon blue (Icaricia acmon acmon) unidentified lady (Vanessa sp.) 3 marine blue (Leptotes marina) Swallowtails unidentified blue pale swallowtail (Papilio eurymedon) Whites western tiger swallowtail (P. rutulus) Sara orangetip (Anthocharis sara sara) 2 anise swallowtail (P. zelicaon) desert (Felder’s) orangetip (A. cethura) Miscellaneous common California ringlet (Coenonympha californica) monarch (Danaus plexippus) cabbage white (Pieris rapae) common buckeye (Junonia coenia grisea) checkered (common) white (Pontia protodice) mourning cloak (Nymphalis antiopa) spring white (P. sisymbrii) Skippers unidentified white funereal duskywing (Erynnis funeralis) Metalmarks mournful duskywing (Erynnis tristis) 1 Behr’s metalmark (Apodemia mormo virgulti) 2 fiery skipper (Hylephila phyleus) Wright’s metalmark (Calephelis wrighti) white (common) checkered-skipper (Pyrgus albescens) 1 Sulphurs Other orange sulphur (Colias eurytheme) sleepy orange (Eurema nicippe) cloudless sulfur (Phoebus sennae marcellina) unidentified sulphur Column Subtotal 4 Column Subtotal 8 Total 12

2015 Quino Checkerspot Butterfly Survey Form Surveyor: Erica Harris & Tara Baxter (supervised) Date: 3/9/15 Site Name: Palo Verde Site Visit No: 4 Acres Surveyed 13 Survey Time: 4.33 hours Acres per Hour: 3.0 Other Surveyors Present:

Field Conditions Time (24 hr) Temperature (˚F) Wind Speed (mph) Cloud Cover Start 1200 73 4-6 0% End 1620 77 0-2 0% Start End

Vegetation Communities Surveyed (inc. dominant spp.) Chamise Chaparral, Diegan coastal sage scrub

Host Plants Obs. Nectar Plants Obs. dwarf plantain (Plantago erecta) X popcorn flower (Cryptantha/Plagiobothrys spp.) X purple owl’s clover (Castilleja exserta) X goldfields (Lasthenia spp.) snapdragon (Antirrhinum coulterianum) goldenstar (Muilla spp.) birds-beak (Cordylanthus rigidus) fiddleneck (Amsinckia menziesii var. intermedia) X woolly plantain (Plantago patagonica) onion (Allium spp.) Chinese houses (Collinsia spp.) buckwheat (Eriogonum fasciculatum) X ground pink (Linanthus dianthiflorus) X

Butterfly Species No. Butterfly Species No. Checkerspots Hairstreaks California patch (Chlosyne californica) great purple hairstreak (Atlides halesus corcorani) Gabb’s checkerspot (C. gabbii) brown elfin (Callophrys augustinus) Quino checkerspot (Euphydryas editha quino) bramble (perplexing) hairstreak (C. dumetorum affinis) chalcedon checkerspot (E. chalcedona chalcedona) gray hairstreak (Strymon melinus pudica) Leanira checkerspot (Thessalia leanira wrighti) Ladies/Admirals Mylitta crescent (Phyciodes mylitta) California sister (Adelpha bredowii californica) Blues Lorquin’s admiral (Limenitis lorquini) western pygmy-blue (Brephidium exila) west coast lady (Vanessa annabella) 1 western tailed blue (Everes amyntula) red admiral (V. atalanta rubria) southern blue (Glaucopsyche lygdamus australis) painted lady (V. cardui) Edward’s blue (Hemiargus ceraunus gyas) American (Virginia) lady (V. virginiensis) Acmon blue (Icaricia acmon acmon) unidentified lady (Vanessa sp.) 9 marine blue (Leptotes marina) Swallowtails unidentified blue pale swallowtail (Papilio eurymedon) Whites western tiger swallowtail (P. rutulus) 1 Sara orangetip (Anthocharis sara sara) 1 anise swallowtail (P. zelicaon) desert (Felder’s) orangetip (A. cethura) Miscellaneous common California ringlet (Coenonympha californica) monarch (Danaus plexippus) cabbage white (Pieris rapae) common buckeye (Junonia coenia grisea) checkered (common) white (Pontia protodice) mourning cloak (Nymphalis antiopa) spring white (P. sisymbrii) Skippers unidentified white funereal duskywing (Erynnis funeralis) 9 Metalmarks mournful duskywing (Erynnis tristis) Behr’s metalmark (Apodemia mormo virgulti) 2 fiery skipper (Hylephila phyleus) Wright’s metalmark (Calephelis wrighti) white (common) checkered-skipper (Pyrgus albescens) Sulphurs Other orange sulphur (Colias eurytheme) sleepy orange (Eurema nicippe) cloudless sulfur (Phoebus sennae marcellina) unidentified sulphur 2 Column Subtotal 5 Column Subtotal 20 Total 25

2015 Quino Checkerspot Butterfly Survey Form Surveyor: Erica Harris & Shana Rodriguez (supervised) Date: 3/20/15 Site Name: Palo Verde Site Visit No: 5 Acres Surveyed 13 Survey Time: 3.40 hours Acres per Hour: 3.8 Other Surveyors Present:

Field Conditions Time (24 hr) Temperature (˚F) Wind Speed (mph) Cloud Cover Start 1205 68 1-4 50% End 1545 73 2-5 >5% Start End

Vegetation Communities Surveyed (inc. dominant spp.) Chamise Chaparral, Diegan coastal sage scrub

Host Plants Obs. Nectar Plants Obs. dwarf plantain (Plantago erecta) X popcorn flower (Cryptantha/Plagiobothrys spp.) X purple owl’s clover (Castilleja exserta) X goldfields (Lasthenia spp.) snapdragon (Antirrhinum coulterianum) goldenstar (Muilla spp.) birds-beak (Cordylanthus rigidus) fiddleneck (Amsinckia menziesii var. intermedia) woolly plantain (Plantago patagonica) onion (Allium spp.) Chinese houses (Collinsia spp.) buckwheat (Eriogonum fasciculatum) X ground pink (Linanthus dianthiflorus) X

Butterfly Species No. Butterfly Species No. Checkerspots Hairstreaks California patch (Chlosyne californica) great purple hairstreak (Atlides halesus corcorani) Gabb’s checkerspot (C. gabbii) brown elfin (Callophrys augustinus) Quino checkerspot (Euphydryas editha quino) bramble (perplexing) hairstreak (C. dumetorum affinis) chalcedon checkerspot (E. chalcedona chalcedona) gray hairstreak (Strymon melinus pudica) Leanira checkerspot (Thessalia leanira wrighti) Ladies/Admirals Mylitta crescent (Phyciodes mylitta) California sister (Adelpha bredowii californica) Blues Lorquin’s admiral (Limenitis lorquini) western pygmy-blue (Brephidium exila) west coast lady (Vanessa annabella) western tailed blue (Everes amyntula) red admiral (V. atalanta rubria) 1 southern blue (Glaucopsyche lygdamus australis) 1 painted lady (V. cardui) Edward’s blue (Hemiargus ceraunus gyas) American (Virginia) lady (V. virginiensis) Acmon blue (Icaricia acmon acmon) unidentified lady (Vanessa sp.) 5 marine blue (Leptotes marina) Swallowtails unidentified blue 1 pale swallowtail (Papilio eurymedon) Whites western tiger swallowtail (P. rutulus) Sara orangetip (Anthocharis sara sara) 3 anise swallowtail (P. zelicaon) desert (Felder’s) orangetip (A. cethura) Miscellaneous common California ringlet (Coenonympha californica) monarch (Danaus plexippus) cabbage white (Pieris rapae) common buckeye (Junonia coenia grisea) checkered (common) white (Pontia protodice) mourning cloak (Nymphalis antiopa) spring white (P. sisymbrii) Skippers unidentified white 1 funereal duskywing (Erynnis funeralis) 8 Metalmarks mournful duskywing (Erynnis tristis) Behr’s metalmark (Apodemia mormo virgulti) 18 fiery skipper (Hylephila phyleus) Wright’s metalmark (Calephelis wrighti) white (common) checkered-skipper (Pyrgus albescens) Sulphurs Other orange sulphur (Colias eurytheme) sleepy orange (Eurema nicippe) cloudless sulfur (Phoebus sennae marcellina) unidentified sulphur Column Subtotal 24 Column Subtotal 14 Total 38

2015 Quino Checkerspot Butterfly Survey Form Surveyor: Jasmine Bakker and Laura Moreton (supervised) Date: 3/24/15 Site Name: Palo Verde Ranch Site Visit No: 5 Acres Surveyed 13* Survey Time: 4 hours 10 min Acres per Hour: 3.12 Other Surveyors Present: With supervised individual: Laura Morton *13 acres of suitable habitat; survey time includes surveying access roads en route

Field Conditions Time (24 hr) Temperature (˚F) Wind Speed (mph) Cloud Cover Start 0915 62 0-2 0% End 1325 76 0-2 0% Start End

Vegetation Communities Surveyed (inc. dominant spp.) Chamise Chaparral (Adenostoma fasciculatum), Sothern Mixed Chaparral, Diegan coastal sage scrub

Butterfly Species No. Butterfly Species No. Checkerspots Hairstreaks California patch (Chlosyne californica) great purple hairstreak (Atlides halesus corcorani) Gabb’s checkerspot (C. gabbii) brown elfin (Callophrys augustinus) Quino checkerspot (Euphydryas editha quino) bramble (perplexing) hairstreak (C. dumetorum affinis) chalcedon checkerspot (E. chalcedona chalcedona) gray hairstreak (Strymon melinus pudica) Leanira checkerspot (Thessalia leanira wrighti) Ladies/Admirals Mylitta crescent (Phyciodes mylitta) California sister (Adelpha bredowii californica) Blues Lorquin’s admiral (Limenitis lorquini) western pygmy-blue (Brephidium exila) west coast lady (Vanessa annabella) 1 western tailed blue (Everes amyntula) red admiral (V. atalanta rubria) 1 southern blue (Glaucopsyche lygdamus australis) painted lady (V. cardui) Edward’s blue (Hemiargus ceraunus gyas) American (Virginia) lady (V. virginiensis) Acmon blue (Icaricia acmon acmon) unidentified lady (Vanessa sp.) 9 marine blue (Leptotes marina) Swallowtails unidentified blue 1 pale swallowtail (Papilio eurymedon) Whites western tiger swallowtail (P. rutulus) Sara orangetip (Anthocharis sara sara) 9 anise swallowtail (P. zelicaon) desert (Felder’s) orangetip (A. cethura) Miscellaneous common California ringlet (Coenonympha californica) monarch (Danaus plexippus) cabbage white (Pieris rapae) common buckeye (Junonia coenia grisea) 1 checkered (common) white (Pontia protodice) 1 mourning cloak (Nymphalis antiopa) spring white (P. sisymbrii) Skippers unidentified white 2 funereal duskywing (Erynnis funeralis) 13 Metalmarks mournful duskywing (Erynnis tristis) Behr’s metalmark (Apodemia mormo virgulti) 54 fiery skipper (Hylephila phyleus) Wright’s metalmark (Calephelis wrighti) white (common) checkered-skipper (Pyrgus albescens) Sulphurs Other orange sulphur (Colias eurytheme) sleepy orange (Eurema nicippe) cloudless sulfur (Phoebus sennae marcellina) unidentified sulphur Column Subtotal 67 Column Subtotal 25 Total 92

2015 Quino Checkerspot Butterfly Survey Form Surveyor: Erica Harris Date: 3/31/15 Site Name: Palo Verde Site Visit No: 7 Acres Surveyed 13 Survey Time: 3.0 hours Acres per Hour: 4.3 Other Surveyors Present:

Field Conditions Time (24 hr) Temperature (˚F) Wind Speed (mph) Cloud Cover Start 1030 73 1-3 0% End 1330 83 1-2 5% Start End

Vegetation Communities Surveyed (inc. dominant spp.) Chamise Chaparral, Diegan coastal sage scrub

Butterfly Species No. Butterfly Species No. Checkerspots Hairstreaks California patch (Chlosyne californica) great purple hairstreak (Atlides halesus corcorani) Gabb’s checkerspot (C. gabbii) brown elfin (Callophrys augustinus) Quino checkerspot (Euphydryas editha quino) bramble (perplexing) hairstreak (C. dumetorum affinis) chalcedon checkerspot (E. chalcedona chalcedona) gray hairstreak (Strymon melinus pudica) Leanira checkerspot (Thessalia leanira wrighti) Ladies/Admirals Mylitta crescent (Phyciodes mylitta) California sister (Adelpha bredowii californica) Blues Lorquin’s admiral (Limenitis lorquini) 1 western pygmy-blue (Brephidium exila) west coast lady (Vanessa annabella) western tailed blue (Everes amyntula) red admiral (V. atalanta rubria) southern blue (Glaucopsyche lygdamus australis) 2 painted lady (V. cardui) Edward’s blue (Hemiargus ceraunus gyas) American (Virginia) lady (V. virginiensis) Acmon blue (Icaricia acmon acmon) unidentified lady (Vanessa sp.) marine blue (Leptotes marina) Swallowtails unidentified blue pale swallowtail (Papilio eurymedon) Whites western tiger swallowtail (P. rutulus) Sara orangetip (Anthocharis sara sara) 15 anise swallowtail (P. zelicaon) desert (Felder’s) orangetip (A. cethura) Miscellaneous common California ringlet (Coenonympha californica) monarch (Danaus plexippus) cabbage white (Pieris rapae) common buckeye (Junonia coenia grisea) checkered (common) white (Pontia protodice) 1 mourning cloak (Nymphalis antiopa) spring white (P. sisymbrii) Skippers unidentified white 6 funereal duskywing (Erynnis funeralis) 6 Metalmarks mournful duskywing (Erynnis tristis) Behr’s metalmark (Apodemia mormo virgulti) 24 fiery skipper (Hylephila phyleus) Wright’s metalmark (Calephelis wrighti) white (common) checkered-skipper (Pyrgus albescens) Sulphurs Other orange sulphur (Colias eurytheme) sleepy orange (Eurema nicippe) cloudless sulfur (Phoebus sennae marcellina) unidentified sulphur Column Subtotal 48 Column Subtotal 7 Total 55

Appendix C

BUTTERFLY CHECKLIST Appendix C BUTTERFLY CHECKLIST

2015 Quino Checkerspot Butterfly Survey Butterfly Checklist Site Name: Palo Verde Phase 2 Project Dates: February 17 – March 31, 2015 Survey Numbers: 1-7 Surveyors: Erica Harris, Jasmine Bakker, Robert Hogenauer, Tara Baxter (supervised), Benjamin Rosenbaum (supervised), George Aldridge (supervised), Shana Rodriguez (supervised)

Butterfly Species No. Butterfly Species No. Checkerspots Hairstreaks California patch (Chlosyne californica) great purple hairstreak (Atlides halesus corcorani) Gabb’s checkerspot (C. gabbii) brown elfin (Callophrys augustinus) Quino checkerspot (Euphydryas editha quino) bramble (perplexing) hairstreak (C. dumetorum affinis) chalcedon checkerspot (E. chalcedona chalcedona) gray hairstreak (Strymon melinus pudica) Leanira checkerspot (Thessalia leanira wrighti) Ladies/Admirals Mylitta crescent (Phyciodes mylitta) California sister (Adelpha bredowii californica) Blues Lorquin’s admiral (Limenitis lorquini) 1 western pygmy-blue (Brephidium exila) west coast lady (Vanessa annabella) 2 western tailed blue (Everes amyntula) red admiral (V. atalanta rubria) 3 southern blue (Glaucopsyche lygdamus australis) 3 painted lady (V. cardui) 3 Edward’s blue (Hemiargus ceraunus gyas) American (Virginia) lady (V. virginiensis) Acmon blue (Icaricia acmon acmon) unidentified lady (Vanessa sp.) 67 marine blue (Leptotes marina) Swallowtails unidentified blue 3 pale swallowtail (Papilio eurymedon) Whites western tiger swallowtail (P. rutulus) 1 Sara orangetip (Anthocharis sara sara) 30 anise swallowtail (P. zelicaon) desert (Felder’s) orangetip (A. cethura) Miscellaneous common California ringlet (Coenonympha californica) 2 monarch (Danaus plexippus) cabbage white (Pieris rapae) common buckeye (Junonia coenia grisea) 1 checkered (common) white (Pontia protodice) 1 mourning cloak (Nymphalis antiopa) spring white (P. sisymbrii) Skippers unidentified white 12 funereal duskywing (Erynnis funeralis) 37 Metalmarks mournful duskywing (Erynnis tristis) 1 Behr’s metalmark (Apodemia mormo virgulti) 103 fiery skipper (Hylephila phyleus) white (common) checkered-skipper (Pyrgus Wright’s metalmark (Calephelis wrighti) 1 albescens) Sulphurs Other orange sulphur (Colias eurytheme) sleepy orange (Eurema nicippe) cloudless sulfur (Phoebus sennae marcellina) unidentified sulphur 2 Column Subtotal 156 Column Subtotal 117 Total Butterflies Observed 273

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