Loboscelidia nasiformis, Kimsey, Lynn S., 2012

Kimsey, Lynn S., 2012, Review of the odd chrysidid genus Loboscelidia Westwood, 1874 (Hymenoptera, Chrysididae, Loboscelidiinae), ZooKeys 213, pp. 1-40: 19-20

publication ID


publication LSID


persistent identifier


taxon LSID


treatment provided by

ZooKeys by Pensoft

scientific name

Loboscelidia nasiformis

sp. n.

Loboscelidia nasiformis  ZBK  sp. n. Figures 133143

Type material.

Holotype male: Thailand: Petchaburi Prov., Kaeng Krachan NP, Pa La-U/Huai Palao Forest Unit 3, 12°32'149"N, 99°28'265"E, Malaise trap, 4-11/i2009, Thongbai, T4562 (QSBG).


The most distinctive and unusual feature of this species is the greatly elongate and nose-like frontal projection, which makes the head nearly 3 × as long as broad in lateral view. Otherwise, Loboscelidia nasiformis  is closest to Loboscelidia cinnamonea  , with an arched medial vein, rectangular frontal projection (albeit greatly elongate in Loboscelidia nasiformis  ), complete notauli, cu-a reduced to a tiny stub or absent, and no scrobal sulcus. Other than the elongate frontal projection, Loboscelidia nasiformis  can be separated from Loboscelidia cinnamonea  by the presence of fore and midtibial flanges (absent in Loboscelidia cinnamonea  ).

Male description.

Body length 2 mm; forewing length 2.5 mm. Head (Fig. 13): length 2.9 × height in side view; eye asetose; frontal projection nasiform; frons smooth; vertex without transverse fovea, posterior expansion strongly curved in profile; frons without carina or ridge extending from vertex along inner eye margin; gena without scale-like setae; scape smooth, without striae, length 3.7 × breadth; flagellomeres I and II length 2.2 × breadth; flagellomere XI length 3.6 × breadth. Mesosoma: pronotal length 0.9 × breadth, without lateral carina; scutum with notauli reaching posterior margin; scutellum without sublateral carina, smooth laterally; metanotum without medial ridge, impunctate laterally; propodeum without transverse dorsal carina; legs (Fig. 43) smooth, polished; forefemoral flange 0.5 × femur length, flange as wide as tubular part of femur; foretibial flange 0.6 × femur length, flange maximum width 0.4 × width of tubular part of tibia; midfemoral flange 0.5 × femur length, flange maximum width 0.4 × width of tubular part of femur; midtibial flange 0.6 × femur length, flange maximum width 0.6 × width of tubular part of tibia; hindfemoral flange 0.8 × femur length, flange maximum width 0.5 × width of tubular part of femur; hindtibial flange 0.8 × femur length, flange maximum width 0.6 × width of tubular part of tibia; hindtibia with two longitudinal carinae on posterior margin; hindcoxa without longitudinal carina on inner medial surface; forewing (Fig. 31) R1 length 0.3 × R length; cu-a absent; Rs length 2.6 × R length; Cu+M length 0.5 × A length; medial vein submedially curved. Color: body brown to reddish brown; wing membrane brown-tinted, paler along vein remnants.


The species is named for the long, nose-like frontal projection (Latin)