Pristaulacus emarginaticeps Turner, 1922
Kuroda, Keita, 2018, Discovery of the male of a rare aulacid wasp, Pristaulacusemarginaticeps Turner, 1922 (Hymenoptera: Aulacidae) from Vietnam and Laos, Biodiversity Data Journal 6, pp. 26198-26198: 26198
treatment provided by
|Pristaulacus emarginaticeps Turner, 1922|
Pristaulacus emarginaticeps Turner, 1922: 270.
Type status: Other material. Occurrence: recordedBy: native collector; individualCount: 2; sex: 2 males; lifeStage: adult; Taxon: scientificName: Pristaulacusemarginaticeps; order: Hymenoptera; family: Aulacidae; Location: country: Vietnam; countryCode: VN; stateProvince: Hà Tĩnh Province; Identification: identifiedBy: Keita Kuroda; dateIdentified: 2018; Event: eventDate: May 2017; Record Level: language: English; institutionCode: EUMJ; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: recordedBy: J. Yamasako; individualCount: 1; sex: 1 female; lifeStage: adult; Taxon: scientificName: Pristaulacusemarginaticeps; order: Hymenoptera; family: Aulacidae; Location: country: Laos; countryCode: LAO; stateProvince: Houaphanh Province; locality: Mt. Phou Pan, Ban Saleui, near Xam Neua ; Identification: identifiedBy: Keita Kuroda; dateIdentified: 2018; Event: eventDate: 5 May 2003; Record Level: language: English; institutionCode: EUMJ; basisOfRecord: PreservedSpecimen
Description of male (Fig. 1a). Colour black; scape entirely reddish-brown; segments 1 and 2 of maxillary palpi brown; apical and basal 1/4 of fore femur brown; fore tibia and tarsus brown; apical and basal tips of mid femur brown; mid tibia and tarsus brown to black; apical and basal tips of hind femur brown; hind tibia brown to black; spurs brown; wings hyaline and tinged with brown, stigma black and vein black to brown; apical half of fore wing strongly infuscate, area along veins M+Cu, 1cu-a and basal half of A infuscate; setae brown to light brown except setae on mandible and clypeus light reddish-brown, setae on maxillo-labial palpus and paraocular area pale yellow.
Head (Fig. 2a-c) smooth and shiny, 0.6-0.7 times as long as wide; malar space 0.3 times as long as eye height; median portion of occipital margin strongly grooved; lower 2/3 of occiput with long setae with punctures; occipital carina distinct and complete; vertex, temple and frons sparsely punctate with setae; POL/OOL = 1.2-1.3; antennal socket situated at lower level of eye; face punctuate with long setae; paraocular area with long setae and punctures; clypeus punctate and with dense setae; mandible smooth, basal 2/3 densely punctate with evenly distributed strong setae (Fig. 7a); antenna (Fig. 1b) with 11 flagellomeres, finely punctate with setae and 5.0 times as long as head length; scape 1.6-1.9 times as long as wide; pedicel 2.0-2.2 times as long as wide; 1st flagellomere 2.2-2.6 times as long as wide, 0.7 times as long as 2nd.
Mesosoma (Fig. 3a-b) shiny, punctate with fine setae; pronotum reticulate rugose to foveolate, with diagonally transverse canaliculate groove and with 2 tooth-like processes on antero-ventral margin (red arrows in Fig. 3b), one antero-ventral other ventral; mesoscutum reticulate rugose with a pair of lobes on anterior margin projecting strongly forward, the front profile of mesoscutum prominent and slightly pointed in lateral view (blue arrow in Fig. 3b); notauli canaliculate, deep and wide, meeting at median portion of mesoscutum; mesoscutellum reticulate rugose; axillula reticulate rugose to canaliculate; mesopleuron reticulate rugose; metanotum reticulate rugose; metapleuron reticulate rugose; propodeum reticulate rugose except anterior marginal groove longitudinally canaliculate.
Legs: Coxae setose; fore coxa smooth; mid and hind coxae trans-striate on dorsal side; tibiae and tarsi with dense setae and punctures; hind basitarsus 9.2-11.0 times as long as wide; tarsal claws with 6 tooth-like processes.
Wings (Fig. 4): Fore wing 2.8-3.0 times as long as wide, apex rounded; hind wing weakly tapering toward rounded apex, 3.6-3.9 times as long as wide and with 4 distal hamuli.
Metasoma pyriform in lateral view, shiny and covered with sparse setae and punctate; petiole 2.9-3.2 times as long as wide.
Genitalia: Apical margin of subgenital plate emarginate medially (Fig. 5d); paramere subtriangular (Fig. 5a-b); cuspis finger-like shape, moderately curved and its apex punctate (Fig. 5b); digitus triangular (Fig. 5b); penis valve slightly curved ventrally (Fig. 5c); basal apodeme of aedeagus weakly curved dorsally.
Measurements. Body length 18.5-20.0 mm. Length of fore wing 13.6-14.1 mm.
Measurement of female from Laos
Body length 16.3 mm. Length of fore wing 13.6 mm. Ovipositor 13.2 mm. Head 0.8 times as long as wide; malar space 0.3 times as long as eye height; POL/OOL = 1.4; antenna 3.6 times as long as head length; scape 1.6 times as long as wide; pedicel 2.2 times as long as wide; 1st flagellomere 2.5 times as long as wide, 1.5 times as long as 2nd; hind basitarsus 7.9 times as long as wide; fore wing 3.0 times as long as wide, apex rounded; hind wing 3.9 times as long as wide; Petiole could not be measured because it was deformed; ovipositor 1.0 times as long as fore wing.
Male and female. Pronotum with 2 tooth-like marginal processes laterally, one anteroventral other ventral (Fig. 3b); mesoscutum with a pair of strongly projecting forward lobes on anterior margin (Fig. 3a), the front profile of mesoscutum prominent and slightly pointed in lateral view (Fig. 3b); notauli canaliculate, deep and wide (Fig. 3a); tarsal claws with 6 tooth-like processes.
Laos (1 female from Houaphanh Province), Vietnam (holotype female from Hòa Bình Province, 2 males from Hà Tĩnh Province).
Examined specimens were collected in May and the holotype was collected in August.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.