Pseudogonalos angusta
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Ordo: Hymenoptera
Familia: Trigonalyidae
Genus: Pseudogonalos
Name
Pseudogonalos angusta Chen & van Achterberg & He & Xu, 2014 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype, + (SCAU) “[China:] Inner Mongolia, Mt. Helan, Halawu–Shatangzi, 3.VIII.2010, sweeping, Rui Guo, SCAU 183”.
Diagnosis
Notauli narrow and finely crenulate; malar space nearly black; middle mesoscutal lobe convex and shiny, sparsely punctate.
Description
Holotype, female, length of body 7.8 mm (of fore wing 6.2 mm).
Head. Antenna with 23 segments; frons largely smooth with sparse small punctures (Fig. 243); vertex and temple largely smooth with sparse and fine punctures (Fig. 244); head gradually narrowed behind eyes, eye in dorsal view 0.8 times as long as temple (Fig. 244); occipital carina strongly widened and lamelliform, coarsely crenulate medio-dorsally (Fig. 244); supra-antennal elevations strongly enlarged (about 1.1 times as long as scapus), outer side flat and smooth (Fig. 244); clypeus slightly concave and thick medio-ventrally.
Mesosoma. Length of mesosoma 1.4 times its height (Fig. 250); mesopleuron below transverse mesopleural groove rugose anteriorly and rugulose to smooth posteriorly, above groove rugose (Fig. 250); transverse mesopleural groove moderately wide, deep and coarsely crenulate; notauli narrow and finely crenulate; middle lobe of mesoscutum convex and shiny, sparsely punctate anteriorly, rugose at posterior end, lateral lobes sparsely punctate and medially with smooth interspaces (Fig. 249); scutellar sulcus wide, both medially and laterally and coarsely crenulate; scutellum densely reticulate-punctate, rather flat and anteriorly near level of mesoscutum; metanotum medially protruding, obtuse and reticulate-rugose (Fig. 249); anterior propodeal sulcus without crenulae medially (Fig. 249); propodeum obliquely rugulose to rugose medially, smooth and shiny antero-laterally and posteriorly (Fig. 249); posterior propodeal carina thick lamelliform and curved, foramen medially 0.4 times higher than wide basally.
Wings. Fore wing: length of vein 1-M 1.6 times as long as vein 1-SR (Fig. 246).
Metasoma. First tergite 0.5 times as long as apically wide, smooth and with shallow elliptical depression antero-medially (Fig. 251); second–fifth tergites largely smooth except for sparse superficial punctation; sternites largely smooth except for sparse superficial punctation; second sternite slightly convex (Fig. 252); third sternite about 0.4 times as long as second sternite (Fig. 252); hypopygium triangular in ventral view.
Colour. Black; malar space nearly black, somewhat brownish; mandibular teeth, palpi, tegulae, fore and mid tibiae and tarsi, pterostigma and anterior half of marginal cell of fore wing dark brown, remainder of wing membrane pale brown.
Male. Unknown.
Biology
Unknown. Collected in August.
Distribution
China (Inner Mongolia).
Etymology
From “angustus” (Latin for “narrow”) after the narrow notauli.
Original Description
- Chen, H; van Achterberg, C; He, J; Xu, Z; 2014: A revision of the Chinese Trigonalyidae (Hymenoptera, Trigonalyoidea) ZooKeys, 385: 1-207. doi
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