Review of the New World Species of Coiba Marsh
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PROC. ENTOMOL. SOC. WASH. 111(1), 2009, pp. 183–198 REVIEW OF THE NEW WORLD SPECIES OF COIBA MARSH (HYMENOPTERA: BRACONIDAE: DORYCTINAE), INCLUDING DESCRIPTIONS OF TWO NEW SPECIES, NEW DISTRIBUTION RECORDS, AND A KEY TO SPECIES ROBERT R. KULA Systematic Entomology Laboratory, PSI, Agricultural Research Service, U.S. Department of Agriculture, c/o National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, MRC-168, Washington, DC 20013-7012 U.S.A. (e-mail: [email protected]) Abstract.—Coiba jeffersoni Kula, new species from the Nearctic Region and Coiba marshi Kula, new species from the Neotropical Region are described. A diagnosis is provided for both species, as is a key to the New World species of Coiba. Coiba jeffersoni likely attacks wood-boring beetle larvae, as label data indicate that specimens were reared from Carya ovata (Mill.) K. Koch (shagbark hickory), Juglans nigra L. (black walnut), and an undetermined species of Quercus L. (oak). The first records of Coiba dentatus Marsh in Brazil and Coiba woldai Marsh in Venezuela are reported. Key Words: parasitoid, description, distribution, new record, Carya ovata, Juglans nigra, Quercus Marsh (1993) proposed Coiba Marsh Rica that includes Coiba, a revised to include doryctines with ‘‘short anten- generic diagnosis, redescriptions and nae’’ (i.e., ,18 flagellomeres in Marsh new distribution records for C. dentatus 1997), forewing r-m absent, forewing and C. woldai, and a key for differenti- first subdiscal cell open posterodistally, ating the aforementioned species. hind wing cu-a present, and hind wing Marsh (1993) mentioned that ‘‘speci- M+CU longer than 1M. Coiba contained mens from the southern United States, three Neotropical species prior to this Mexico and Brazil may belong in work, all with unknown host utilization: [Coiba]’’ but did not describe them Coiba dentatus Marsh and Coiba woldai because of a paucity of specimens. An Marsh, both from Costa Rica and undescribed species of Coiba was collect- Panama, and Coiba guanaensis Marsh ed recently at Konza Prairie Biological from the British Virgin Islands (Marsh Station, a tallgrass prairie preserve in the 1993, 2002). Marsh (1997) provided a Flint Hills region of Kansas. Additional key to New World genera of Doryctinae specimens of this species were discovered that includes Coiba; Rahman et al. in the Smithsonian Institution National (1998) studied ovipositor morphology Museum of Natural History (USNM); for C. woldai. Marsh (2002) provided a specimens of another undescribed species key to the doryctine genera of Costa were discovered in the Canadian Nation- al Collection of Insects (CNC). Both new * Accepted by David R. Smith species are described herein, new distri- 184 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON bution records for C. dentatus and Terminology for surface sculpture pri- C. woldai are reported, and a key to marily follows Harris (1979), but Shar- the New World species of Coiba is key and Wharton (1997) and Marsh provided. (2002) were also consulted. Crenulate is as in Sharkey and Wharton (1997); MATERIALS AND METHODS carinae and areas of the propodeum are Specimens used in this study are either as in Marsh (2002). When a range of housed in the USNM or were borrowed intraspecific variation is reported, the from the CNC and the Kansas State most common condition is the first University Museum of Entomological condition mentioned. Prairie Arthropod Research (KSUC). In the material examined sections, the The holotypes of C. dentatus (CNC), C. location of each specimen examined is guanaensis (USNM), and C. woldai indicated through the use of museum (CNC) were examined, as were nine of codens (Evenhuis and Samuelson 2007). 11, two of two, and 88 of 99 paratypes Exact label data are used for holotypes for each species, respectively. Addition- and indicated through the use of quota- ally, 10 and 85 nontype specimens were tion marks. A bracketed semicolon is examined for C. dentatus and C. woldai, used to separate the information on each respectively. line of any label associated with the Specimens were examined using a holotype. In an effort to provide consis- Leica Wild M10 stereomicroscope with tent and unambiguous specimen-level 253 oculars. Measurements were taken information, data for specimens other with an ocular micrometer as in Whar- than the holotype are presented in a ton (1977) with additions and modifica- uniform format based on original label tions as in Kula and Zolnerowich (2005) data. and Kula and Zolnerowich (2008). The following abbreviations are used in the RESULTS AND DISCUSSION descriptions: head length (HL), head Coiba Marsh width (HW), temple width (TW), face (Figs. 1–35) width (FW), face height (FH), eye length (EL), eye height (EH), flagellomere 1 Coiba Marsh 1993: 11, 41 [original length (F1L), flagellomere 2 length description, distribution, key to spe- (F2L), mesosoma length (ML), mesoscu- cies, key to genera]; Marsh 1997: 209 tum width (MW), mesosoma height [key to genera]; Rahman et al. 1998: (MH), scutellar sulcus length (SSL), 357 [ovipositor morphology]; Marsh scutellar sulcus width (SSW), median (2002): 15, 61 [key to genera, diagno- tergite 1 length (T1L), median tergite 1 sis, distribution, key to species]. Type width (T1W), and median tergites one species: Coiba woldai Marsh 1993 [by through eight (t1…t8). Body length was original designation; CNC, examined]. estimated by summing HL, ML, T1L, and gaster length (excluding the exposed Distribution.—Brazil, Costa Rica, portion of the ovipositor) as measured in Mexico, Panama, United States, and lateral view. Venezuela. Terminology for morphological fea- Discussion.—The northern- and sou- tures and setation largely follows Shar- thernmost records of Coiba species are key and Wharton (1997). Pronotal col- Coiba jeffersoni Kula, new species from lar, pronotal groove, and subalar groove West Lafayette, Indiana, U.S.A. and C. are as in Marsh (2002); posterior meso- dentatus from Encruzilhada, Bahia, Bra- pleural furrow is as in Kula (2003). zil, respectively. The latter locality is a VOLUME 111, NUMBER 1 185 Figs. 1–3. Coiba jeffersoni. 1, Dorsal view of mesosoma. Arrows 5 mesoscutum without sharp protrusions anterolaterally. 2, Dorsal view of gaster. Arrow 5 t3 with transverse groove anteriorly. 3, Lateral view of mesosoma. Arrows: a 5 propodeum without protrusion mesally, b 5 lateral margin of mesoscutum coriaceous, c 5 posterior mesopleural furrow partially crenulate. Scale bars 5 100 mm. 186 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON Figs. 4–9. Coiba jeffersoni. 4, Frons. 5, Face. 6, Posterodorsal view of head. 7, Propodeum. Arrows 5 apical half rugulose. 8, Forewing. 9, Hind wing. Scale bars 5 100 mm. new distribution record for C. dentatus, guanaensis, species also described in previously known only from Costa Rica Marsh (1993). It appears that someone (Marsh 2002) and Panama (Marsh other than Marsh produced and presum- 1993). ably attached paratype labels to the A specimen of C. woldai in the CNC specimen from Venezuela and the para- labeled ‘‘VENEZUELA [;] Cagua types for C. woldai, as the labels are Edo.Aragua [;] .I.1974 [;] Malaise trap’’ identical for all specimens. Therefore, I bears a blue C. woldai paratype label. believe that the paratype label was However, the ‘‘paratypes’’ section in attached accidentally to the specimen Marsh (1993) lists specimens from Pan- from Venezuela and do not consider it a ama only, and the distribution listed for paratype. The locality in Venezuela is a C. woldai in Marsh (1993, 2002) does not new distribution record for C. woldai, include Venezuela. Further, the paratype previously known only from Costa Rica label does not match the style of (Marsh 2002) and Panama (Marsh paratype labels for C. dentatus and C. 1993). VOLUME 111, NUMBER 1 187 Figs. 10–12. Coiba marshi. 10, Dorsal view of mesosoma. 11, Dorsal view of metasoma. 12, Lateral view of mesosoma. Arrows: a 5 propodeum with protrusion mesally, b 5 lateral margin of mesoscutum crenulate, c 5 metapleuron areolate-rugose. Scale bars 5 100 mm. 188 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON Figs. 13–18. Coiba marshi. 13, Frons. 14, Face. 15, Posterodorsal view of head. Arrow 5 vertex costate-rugose posteromesally. 16, Propodeum. 17, Forewing. 18, Hind wing. Scale bars 5 100 mm. Coiba jeffersoni Kula, new species TW, FW 1.50–2.00X FH, EL 0.82–0.87X (Figs. 1–9, 31) EH, F1L 1.00–1.19X F2L; antenna with Diagnosis.—The mesoscutum is 10–13 flagellomeres; mandible with two rounded anterolaterally in C. jeffersoni teeth, upper tooth longer than lower and has sharp protrusions anterolateral- tooth, setiferous to setose; malar space ly in C. dentatus, Coiba marshi Kula, new smooth, setiferous; clypeus setose to species, and C. woldai. The posterior setiferous; face entirely smooth or mesopleural furrow is partially to entire- smooth mesally and rugulose laterally, ly crenulate in C. jeffersoni and is entirely setiferous laterally and glabrous mesally; smooth in C. guanaensis. Coiba jeffersoni frons strigate to strigulate, glabrous can be further differentiated from the except setiferous dorsolaterally or entire- aforementioned species using Table 1 ly glabrous; vertex strigate, setiferous; and the key provided below. gena smooth except small strigulate area Description.—Female (Fig. 31). Body near vertex, setiferous posteriorly; eye length: 1.73–2.08 mm. Head (Figs. 4–6): virtually glabrous or glabrous; occiput HL 0.61–0.69X HW, HW 1.08–1.11X smooth, setiferous peripherally.