Ganaspidium Weld 1955
Creators: name: Buffington, Matthew
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Hexapoda
Hymenoptera
Figitidae
Ganaspidium

description: <i>Ganaspidium</i> Weld, 1955: 274 Type species: <i>Ganaspidium pusillae</i> Weld, by original designation. <b>Diagnosis.</b> Malar space and ventral clypeal margin with distinct conical protuberances. Notauli absent. Parascutal impression incomplete. Scutellar plate narrow with paired conical protuberances anterior of midpit; midpit positioned in posterior onethird of plate. Setal band at base of syntergum of metasoma complete. Similar to <i>Disorygma</i>, <i>Microstilba,</i> and <i>Nordlanderia</i>, but distinguished by the absence of notauli and the presence of a hairy ring at the base of the syntergum; also similar to <i>Agrostocynips</i>, but with the pronotal plate less than one-half the width of the head, the genal carina absent, and the presence of clypeal and malar protuberances. Similar to <i>Banacuniculus</i>, but differing in the morphology of the scutellar plate (conical protuberances present in <i>Ganaspidium</i>, absent in <i>Banacuniculus</i>) and the incomplete parascutal impression (complete in <i>Banacuniculus</i>). <b>Redescription.</b> <i>Head</i>. Nearly glabrous with a few scattered setae on lower face, clypeus, inner margins of compound eyes, and gena; ocellar hair patches absent. Ventral one-fourth of lower face with admedial clypeal furrows converging towards the clypeus; point of convergence resulting in the formation of a distinct conical protuber- ance protruding from anterior margin of clypeus. Orbital furrows absent. Malar sulcus ranging from simple to compound. Malar space smooth to distinctly strigose, with large conical protuberance present. Genal carina absent. <i>Antennae</i>. Female: 13 segments, moniliform, clavate; segments 3–13 sub-equal in length; rhinaria present only on the last 7 segments. Male: 15 segments; segments 3–15 sub-equal in length; rhinaria present on segments 3–15. Segment 3 modified, curved outwardly, excavated laterally. <i>Pronotum</i>. Pronotal plate narrow, with setae present along posterior margin; dorsal margin rounded; pronotal fovea open. Lateral pronotal carina absent. Pronotal triangle absent. Pronotal impression absent. Lateral aspect of pronotum smooth, glabrous in most species. <i>Mesoscutum</i>. Glabrous and smooth. Parascutal impression incomplete. Notauli, mesoscutal keel, parapsidal ridges, and parapsidal hair lines absent. <i>Mesopectus</i>. Upper and lower part of mesopleuron ranging from completely smooth to longitudinally striate; glabrous. Mesopleural triangle present, faintly indicated (often only visible in the space immediately anterior to the mesopleural spiracle). Mesopleural carina simple; mesopleural hair patch present to absent. Precoxal carina of lower part of mesopleuron present anteriorly and posteriorly, absent ventrally. Surcoxal depression reduced, smooth. <i>Scutellum</i>. Scutellar plate small, narrow; scutellar midpit positioned posteriorly, typically on posterior one-third of plate (MP, Fig. 1A); rim of plate translucent; dorsal surface of plate with pair of tubercles (TUB, Fig. 1A, B). Dorsal surface of the scutellum reticulate to smooth; rounded posteriorly and laterally; posterior carina present or absent. Laterodorsal and posterior projections absent. Lateral bar as long as wide; ventral lobe absent. Scutellar fovea oval, smooth and deep. <i>Metapectal-propodeal complex</i>. Posterior one-third to one-fourth of metapectus setose. Spiracular groove with a well-defined dorsal margin and reduced ventral margin. Posterior margin of metapectus smooth, not ridged. Metapleural ridge and submetapleural ridge absent. Anterior impression of metepimeron absent; anterior impression of metepisternum reduced. Anteroventral cavity rounded, setose. Propodeum covered in dense, appressed setae. Lateral propodeal carinae semiparallel, bowed at junction with auxiliary propodeal carinae; auxiliary propodeal carinae distinct. Nucha glabrous, reticulate. <i>Wings</i>. Hyaline; setose. R complete, pigmented along anterior margin of wing; marginal cell truncate, typically 1 deeper than long (Fig. 1C). Apical fringe short. <i>Legs</i>. Fore and mid coxa sub equal in size, hind coxa twice the size of either fore or mid coxa. Fore coxa variously setose; mid and hind coxa with distinct anterior and posterior dorsoventral setal bands. Femora with sparse setal lines; tibiae and tarsomeres with dense, appressed setae. Length of hind tarsomere 1 equal to 0.5x the combined length of remaining hind tarsomeres. <i>Metasoma</i>. Female: Sub equal in size to mesosoma. Base of syntergum with hairy ring, comprised of dense appressed setae and a ring of thin, erect setae; remainder of metasoma glabrous. Micropunctures present on posterior one-third of syntergum and remaining terga. Terga posterior to syntergum gradually directed ventrally, resulting <b>Figure |.</b> Diagnostic features of <i>Ganaspidium</i>. <b>A</b> scutellum, dorsal view <b>B</b> scutellum, lateral view <b>C</b> forewing, dorsal view. All illustrations of <i>Ganaspidium pusillae</i>. Abbreviations: <b>MP</b> midpit of scutellar plate <b>PC</b> posterior carina of scutellum <b>TUB</b> tubercles of scutellar plate. in 70 degree angle between syntergum and remaining terga. Ovipositor with series of sub apical serrations (seen only in large specimens). Male: as in female, with the terga posterior to syntergum abruptly angled ventrally, resulting in 90 degree angle between syntergum and remaining terga. <b>Distribution.</b> Figure 5. Neotropical Region: Chile, Costa Rica; Nearctic Region: northern Mexico, continental United States, southern Canada. <b>Biology.</b> Several species of <i>Liriomyza</i> have been recorded as hosts (Weld 1955; Harding, 1965, present study). Species of this genus can be found in nearly biogeo- graphic region and have been recovered from hosts in 25 families of Asteraceae (CABI 1992). This incredibly broad geographic and host range helps explain the presence of this host from lush agroecosystems to arid desert habitats. <b>Comments.</b> Miller (1989) described two species of eucoiline wasps that were placed in <i>Nordlanderia</i> Quinlan. Although the type specimens for these two species are apparently lost (Miller, pers. comm.), it is clear from the scanning electron micrographs accompanying the original descriptions that these two species do not belong in <i>Nordlanderia</i>. One species, <i>N. navajoae</i> Miller, bears diagnostic features of <i>Ganaspidium</i> and is transferred below; the second species, <i>N. merickeli</i> Miller, belongs in <i>Banacuniculus</i>, and is formally transferred in Buffington (2010). One paratype of <i>Ganaspidium pusillae</i> is actually a specimen of <i>Disorygma pacifica</i> (Yoshimoto), reared from <i>Liriomyza pusilla</i>. This specimen bears the label “ <i>Disorygma ”</i> in Nordlander’s hand.
description: Published as part of <i>Buffington, Matthew, 2010, A revision of Ganaspidium Weld, 1952 (Hymenoptera, Figitidae, Eucoilinae): new species, bionomics, and distribution, pp. 81-101 in ZooKeys 37 (37)</i> on pages 84-87, DOI: 10.3897/zookeys.37.311, http://zenodo.org/record/576628
description: {"references": ["Weld LH (1955) A new genus and species of North American Cynipoidea (Hymenoptera). Proceedings of the Entomological Society of Washington 57: 274.", "Harding JA (1965) Parasitism of the leaf miner Liriomyza munda in the Winter Garden area of Texas. Journal of Economic Entomology 58: 442 - 443.", "CABI / EPPO (1992) Data sheets on quarantine pests: Liriomyza huidobrensis. In: Quarantine Pests for Europe. CAB International, Wallingford, Oxon, UK, 194 - 198.", "Miller TD (1989) First Nearctic record of the genus Nordlanderia (Hymenoptera: Eucoilidae) with descriptions of two new species. Proceedings of the Entomological Society of Washington 91: 158 - 163.", "Buffington ML (2010) Th e description of Banacuniculus Buffington, new genus (Hymenoptera: Figitidae: Eucoilinae). Journal of Hymenoptera Research 19: 94 - 112."]}