Taeniogonalos cordata
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Ordo: Hymenoptera
Familia: Trigonalyidae
Genus: Taeniogonalos
Name
Taeniogonalos cordata Chen & van Achterberg & He & Xu, 2014 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype, + (ZJUH) “[China:] Yunnan, Dali, Yunlong, 3.VI.2009, Jiang-li Tan, 200906614”.
Diagnosis
Outer side of supra-antennal elevations oblique and elevations about 0.2 times as long as scapus (Fig. 319); and anterior half dark brown (Fig. 319); head black dorsally, without V-shaped pale pattern medio-posteriorly (Fig. 319); middle mesoscutal lobe strongly contrasting with both black lateral lobes, yellow laterally and orange-brown medially (Fig. 323); scutellum largely orange-brown, only medio-posteriorly and laterally narrowly black (Fig. 323); anterior half of fore wing largely dark brown and posterior half of fore wing subhyaline (Fig. 321); propodeum very finely and regularly densely rugulose (Fig. 323); second tergite and sternite narrowly yellow apically (Fig. 325); second sternite of + distinctly convex (Fig. 326).
Description
Holotype, female, length of body 8.3 mm (of fore wing 7.6 mm).
Head. Antenna with 22 segments; frons spaced punctate and vertex densely punctate with no smooth interspaces (Fig. 319), with rather long setae; temple rugulose-punctate (Fig. 322); head gradually narrowed behind eyes, eye in dorsal view 1.3 times as long as temple (Fig. 319); occipital carina narrow medio-dorsally; supra-antennal elevations medium-sized (about 0.2 times as long as scapus), outer side oblique and largely smooth except for sparse punctures; clypeus slightly concave and thick medio-ventrally.
Mesosoma. Length of mesosoma 1.4 times its height (Fig. 324); mesopleuron obliquely rugose; notauli narrow, deep and finely crenulate; middle lobe of mesoscutum coarsely irregularly rugose, lateral lobes longitudinally rugose (Fig. 323); scutellar sulcus complete, moderately wide and crenulate; scutellum densely and coarsely reticulate-rugose, convex anteriorly and near level of mesoscutum, but flattened medially; metanotum medially slightly convex, not protruding and densely reticulate-rugose (Fig. 323); propodeum coarsely reticulate-rugose (Fig. 323); posterior propodeal carina thick lamelliform.
Wings. Fore wing: length of vein 1-M 1.3 times as long as vein 1-SR (Fig. 321).
Metasoma. First tergite 0.4 times as long as apically wide, smooth and with shallow elliptical depression medially (Fig. 325); other tergites and all sternites densely and finely punctate (Figs 325, 327); second sternite distinctly convex medially, rather flattened anteriorly and posteriorly; third sternite about 0.1 times as long as second sternite (Fig. 327).
Colour. Black; head anteriorly with moderate orange-brown pattern (Fig. 318); remainder of head black except for yellowish brown outer orbita (Fig. 322); mesosoma laterally black except for ventral and dorsal brown small patches of pronotal side and middle mesoscutal lobe strongly contrasting with both lateral lobes, yellow laterally and orange-brown medially (Fig. 323); scutellum largely orange-brown, only medio-posteriorly and narrowly black laterally (Fig. 323); axilla with small brown patch; metasoma dorsally black, first three tergites with posterior orange-brown stripes, other tergites with large orange-brown patch medially; metasoma ventrally black (Fig. 323), first sternite with orange posterior brown stripes black basally, second and third sternites with pair of small orange-brown patches latero-posteriorly; palpi and antenna (but ventrally brown) dark brown; patch on middle and hind coxae, all trochanters partly, apex of all femora, fore and middle tibia tarsi dark brown, remainder of legs black; pterostigma and anterior half of fore wing largely dark brown (Fig. 321), remainder of wing membrane hyaline.
Male. Unknown.
Biology
Unknown. Collected in June.
Distribution
China (Yunnan).
Etymology
From “cordatus” (Latin for “heart-shaped”) after the cordate shape of the yellow and orange-brown middle lobe of the mesoscutum.
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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