A New Species of Calosima Dietz, 1910 from Kenya (Lepidoptera: Gelechioidea: Blastobasidae) Reared from the Domatia of Vachellia drepanolobium (Fabaceae) Author: Adamski, David Source: Proceedings of the Entomological Society of Washington, 119(sp1) : 697-702 Published By: Entomological Society of Washington URL: https://doi.org/10.4289/0013-8797.119.SpecialIssue.697 BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Complete website, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/terms-of-use. Usage of BioOne Complete content is strictly limited to personal, educational, and non - commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Downloaded From: https://bioone.org/journals/Proceedings-of-the-Entomological-Society-of-Washington on 05 Sep 2020 Terms of Use: https://bioone.org/terms-of-use Access provided by Entomological Society of Washington PROC. ENTOMOL. SOC. WASH. 119(Special Issue), 2017, pp. 697–702 A NEW SPECIES OF CALOSIMA DIETZ, 1910 FROM KENYA (LEPIDOPTERA: GELECHIOIDEA: BLASTOBASIDAE) REARED FROM THE DOMATIA OF VACHELLIA DREPANOLOBIUM (FABACEAE) urn:lsid:zoobank.org:pub:096AE78C-10F7-481E-AE1A-9270831E95D4 DAVID ADAMSKI Department of Entomology, National Museum of Natural History, P.O. Box 37012, MRC-168, NHB-E526, Smithsonian Institution, Washington, D.C. 20013–7012 (e-mail: [email protected]) urn:lsid:zoobank.org:author:7A83C29A-1099-45C4-8637-9ACACB6EC882 Abstract.—Calosima smithi n. sp. (Lepidoptera: Gelechioidea: Blastobasidae) is described from specimens reared in Kenya from swollen thorn domatia of Vachellia drepanolobium (Fabaceae). Illustrations of the adult and male genitalia are provided. Key Words: Acacia, adult morphology, Fabaceae, Calosima, taxonomy, Vachellia DOI: 10.4289/0013-8797.119.Special Issue.697 Recent studies have demonstrated that species been investigated. Fogging surveys Acacia Mill. (Fabaceae), sensu lato,is conducted in Mkomazi and Tanzania by polyphyletic and in need of systematic Kru¨ger and McGavin (1997) identified revision (e.g., Luckow et al. 2003, Miller six species of Lepidoptera associated et al. 2003a, Maslin et al. 2003a, b, with Acacia. In 2009 and 2011, Agassiz Seigler and Ebinger 2005, Bouchenak- and Harper hand-collected immatures of Khelladi et al. 2010, Miller and Seigler Lepidoptera on several species of Acacia 2012, Kyalangalilwa et al., 2013). The in the Rift Valley in Kenya. In these cumulative results of these studies rec- studies, species of Acacia were divided ognize five genera within Acacia in- into two groups based on elevation. At cluding Acacia (sensu stricto), Senegalia high elevations between 1800‒1900 m, (Raf.), Acaciella (Britton and Rose), and at lower elevations less than 1000 m, Mariosousa (Seigler and Ebinger), and the swollen bases of stipular spines Vachellia (Wight and Arn.). (domatia) of Vachellia drepanolobium Although much is known about the (Harms ex Sjo˝stedt) P. J. H. Hunter and effects of mammalian and insect her- V. seyal fistula (Schweinf.) Kyal. and bivory on species of Acacia (sensu lato) Boatwr. (formerly in Acacia) were in subsaharan Africa, (Kuria et al. 2010), opened, and all lepidopteran larvae dis- only recently have the Lepidoptera as- covered were placed in rearing chambers sociated with this vast group of plant to obtain adults. From both high and low Downloaded From: https://bioone.org/journals/Proceedings-of-the-Entomological-Society-of-Washington on 05 Sep 2020 Terms of Use: https://bioone.org/terms-of-use Access provided by Entomological Society of Washington 698 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON elevations collecting sites, 87 species shaped uncus, a bandlike gnathos, and representing at least seven families of a widened basal part of the upper part of macrolepidoptera (Agassiz and Harper the valva. C. smithi differs from the latter 2009) and 92 species representing at species by having a more dilated basal least eight families of microlepidoptera portion of the upper part of the valva, were reared (Agassiz 2011). Four studies a shorter digitate process of the upper part (Agassiz 2011, Agassiz and Harper of the valva, a less inwardly-curved 2014, Agassiz and Aarvik. 2014, Agassiz spinelike process of the lower part of the and Bidzilya 2016) pertaining to the mi- valva, and a sclerite of the phallus that is crolepidoptera associated with Acacia more acutely curved basally. (sensu lato) have been published. Description.—Adult. Head: Scales of Of all the microlepidoptera reared from vertex and frontoclypeus grayish brown Acacia, only three conspecific specimens tipped with white. Scape of antenna with of Holcocerini (Blastobasidae) were ob- grayish-brown scales tipped with white, tained from all trees of Vachellia drepano- flagellum grayish brown; first flagellum lobium that were sampled. The objective of unmodified in male, female unknown. thispaperistomakeanameavailablefor Scales on outer surface of labial palpus the new species of blastobasid collected brown tipped with pale grayish brown, from Vachellia drepanolobium. except pale grayish brown along apical margin of 2nd article; inner surface mostly pale grayish brown intermixed with white MATERIALS AND METHODS scales and few brown scales. Haustellum Observations of the adult morphology, with pale grayish-brown scales. including measurements of the adult Thorax: Scales on tegula and meso- moths, were made using a Leitz RS dis- notum pale grayish brown tipped with secting microscope with a calibrated mi- white. Scales on femur and tibia brown crometer. Genitalia were dissected as de- tipped with white, tarsomeres with scribed according to Clarke (1941), except scales mostly pale grayish brown tipped mercurochrome and chlorazol black were with white intermixed with pale grayish- used as stains. The image of the holotype brown scales or scales pale grayish was taken with a Visionary Digital Im- brown tipped with white intermixed with aging System. The Methuen Handbook of pale grayish-brown scales along apical Colour (Kornerup and Wanscher 1978) margin of each tarsomere. Forewing was used as a color standard. All types are (Fig. 1) length 7.8–10.2 mm (n=3), pale deposited in The Natural History Museum brown intermixed with white scales or (NHM), London, United Kingdom. white intermixed with pale-brown scales; basal 1/3–1/2 of costa brown, RESULTS anteroapical costa pale grayish brown; Calosima smithi Adamski, scales of distal 1/3–1/2 of marginal area new species grayish brown tipped with white. Un- dersurface brown. Venation with pter- urn:lsid:zoobank.org:act:56C64A72- ostigma between Sc and R , and basal A431-425A-ABD6-C0B6628448DF 1 part of CuA and CuA nearly at right (Figs. 1–3) 1 2 angle to cubital vein. Hindwing trans- Diagnosis.—Calosima smithi is most lucent pale brown. Venation with cubitus similar to C. arguta (Meyrick 1918) from 3-branched, with M3 and CuA1 branched Natal, South Africa, sharing a similarly slightly beyond crossvein of cell. Downloaded From: https://bioone.org/journals/Proceedings-of-the-Entomological-Society-of-Washington on 05 Sep 2020 Terms of Use: https://bioone.org/terms-of-use Access provided by Entomological Society of Washington VOLUME 119, NUMBER SPECIAL ISSUE 699 Fig. 1. Holotype male of Calosima smithi Adamski. Abdomen: Terga 2–8 with transverse, flange absent. Vinculum narrow. Juxta irregular rows of spinelike setae. Terga platelike. Phallus (Fig. 3) nearly as long 2–7 with as many as 11–13 rows of as valva, slightly curved along apical 1/3; setae, interrupted mesoanteriorly by a sclerite of phallus broadly curved along smooth unscaled area, such that only 4–5 basal 1/2; anellus bearing numerous rows remain interrupted near posterior microsetae. Female unknown. end (not shown). Male genitalia (Figs. Holotype ♂, “KENYA: Laikipia; Impala 2–3) with uncus setose, laterally flat- Ranch, 1700 m; 0°17.806’ N, 36°51.927’E; tened, apical half acutely curved down- in domatium of A. drepanolobium; em 10.v. wards. Gnathos wide, bandlike, with 2010; Agassiz, Kioko, Mugambi & Ngugi,” posterior margin nearly straight, dorsal “USNMENT00719415,” “DNA2011” arms short, acuminate apically; sepa- [blue label], “BM ♂ Genitalia Slide No. rated from tegumen by a narrow mem- 32026” [NHM]. branous gap. Valva divided in two parts; Paratypes (2 ♂): 1 ♂, same label data dorsal part with a widened base, nar- as above except, “em 16.vi.2010,” “BM rowing at about 2/3, extending apically, ♂ Genitalia Slide No. 32027”; 1 ♂, forming a setose, digitate process; digi- same label data as above except, “in tate process extending slightly beyond domatium of A. drepanolobium iv. 10”; lower part of valva; base with a widened “em 25.viii.2010”; specimen not dissected ventral margin, with a microtrichiate [NHM]. basal area and a setose distal area Etymology.—Calosima smithi is above; ventral part of valva widened named in honor of David R. Smith, Re- from base, gradually narrowed apically, search Entomologist, Emeritus, Sys- forming