Orthogonalys clypeata
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Ordo: Hymenoptera
Familia: Trigonalyidae
Genus: Orthogonalys
Name
Orthogonalys clypeata Chen & van Achterberg & He & Xu, 2014 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype, + (ZJUH) “[China:] Guizhou, Suiyang, Kuankuoshui National Nature Reserve, 4.VI.2010, Jie Zeng, 20115981”. Paratypes: 1 + (ZJUH) topotypic and same date, but 20115980; 1 > (ZJUH) “[China:] Ningxia, Mt. Liupan, Sutai, 24.VI.2008, MT, Jing-xian Liu, 200800477”; 1 + (IZCAS) “[China:] Shaanxi, Ningshan, Huoditang, 1580–1650 m, 27.VI.1999, De-cheng Yuan, SCAU 347”; 1 > (SCAU) “[China:] Sichuan, Wanglang National Nature Reserve, 24.VII.2006, Yi-Ping Wang, SCAU 268”; 4 > (ZJUH, RMNH) “[China:] Yunnan, Dali, Yunlong, 3.VI.2009, Jiang-li Tan, 200906671, 200906673, 200906677, 200906678”.
Diagnosis
Antenna without ivory band subapically (Fig. 171); occipital carina weakly developed and smooth dorsally (Fig. 170); frons moderately shiny and partly superficially punctate (Fig. 169); area besides and behind lateral ocellus smooth; supra-antennal elevations comparatively low; clypeus strongly convex ventro-medially; mandible largely ivory; scutellum densely finely punctate and sometimes with some fine longitudinal carinae, without longitudinal depression and moderately shiny (Fig. 174); mesosoma without pale pattern dorsally, mesoscutum black medially (Fig. 174); third submarginal cell 0.4–0.5 times as long as second submarginal cell; pterostigma brown; fore femur orange-brown or brownish-yellow; anterior 0.7 of first metasomal tergite and anterior 0.2 of second tergite nearly black (Fig. 176).
Description
Holotype, female, length of body 7.6 mm (of fore wing 6.9 mm).
Head. Antenna with 24 segments; frons densely and finely punctate; vertex largely smooth with sparse fine punctures behind stemmaticum (Fig. 170); temple smooth (Fig. 173); head gradually narrowed behind eyes, eye in dorsal view 1.3 times as long as temple (Fig. 170); occipital carina weakly developed and smooth dorsally (Fig. 170); supra-antennal elevations medium-sized (about 0.3 times as long as scapus), outer side subvertical and rugose (Fig. 170); clypeus slightly concave and strongly convex medio-ventrally.
Mesosoma. Length of mesosoma 1.4 times its height (Fig. 175); mesopleuron below transverse mesopleural groove largely smooth with sparse oblique striations, above groove rugose anteriorly and smooth posteriorly; transverse mesopleural groove wide, deep and coarsely crenulate; notauli wide, deep and coarsely crenulate; mesoscutum densely punctate rugose, lateral lobe with a narrow mid-longitudinal furrow (Fig. 174); scutellar sulcus wide, both medially and laterally and coarsely crenulate; scutellum densely punctate rugose, rather flat and anteriorly near level of scutellum (Fig. 174); metanotum medially slightly protruding, obtuse and rugose (Fig. 174); propodeum antero-laterally smooth, irregularly rugose medially and transversely areolate posteriorly (Fig. 174); posterior propodeal carina thick lamelliform and hardly arched, foramen medially 0.3 times higher than wide basally.
Wings. Fore wing: length of vein 1-M 2.3 times as long as vein 1-SR (Fig. 172).
Metasoma. First tergite 0.9 times as long as apically wide, smooth and without depression medially (Fig. 176); other tergites and sternites smooth to superficially coriaceous and shiny (Fig. 176); third sternite about 0.5 times as long as second sternite (Fig. 178); hypopygium truncate in ventral view (Fig. 176).
Colour. Head black with inner orbita ivory up to malar space; mesosoma black; metasoma largely dark brown to nearly black, posterior 0.3 of first tergite and sternite, posterior 0.8 of second tergite, entirely third tergite and second sternite, anterior half of third tergite reddish-yellow; mandible largely ivory with teeth reddish-yellow to dark brown; palpi yellowish brown; antenna black to dark brown; trochanters and trochantelli ivory, coxae and hind femur black, remainder of legs yellowish brown with tarsi paler; pterostigma brown; wing membrane subhyaline.
Variation. Length of body 7.8–9.6 mm, of fore wing 6.9–8.4 mm; frons sparsely and superficially punctate; vertex with small ivory spots posteriorly; clypeus with small yellowish brown spot medially or ivory ventrally; length of vein 1-M of fore wing 2.1–2.3 times as long as vein 1-SR.
Male. Length of body 6.1–8.0 mm, of fore wing 5.2–6.9 mm; antenna with 24 segments; frons densely and coarsely or finely punctate; clypeus entirely ivory; colour of metasoma similar to female; genitalia extruded (Fig. 180).
Biology
Unknown. Collected in June–July at 1580–1650 m.
Distribution
China (Ningxia, Shaanxi, Sichuan, Guizhou, Yunnan).
Etymology
Named after the ventro-medially strongly convex clypeus: from “clypeus” (Latin for “shield”).
Notes
It is close to Orthogonalys hagoromonis Teranishi, 1929, from Japan, but it can be separated from the latter by the yellow or ivory inner orbita and the lower supra-antennal elevations.
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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