Platycampus linealis Liu & Wei, 2024

Liu, Meng-Meng, Li, Ze-Jian & Wei, Mei-Cai, 2025, A new species of Platycampus (Hymenoptera, Tenthredinidae) from China, with an identification key to the world species, Journal of Hymenoptera Research 98, pp. 897-914 : 897-914

Platycampus linealis Liu & Wei, 2024

Fig. 4

Material examined.

Holotype, • male, China: Zhejiang Province, Hangzhou City, Lin’an District, Mt. Qingliangfeng, Longtangshan , 30°06.680'N, 118°54.050'E, 930 m, 26 April 2010, leg. Mingcan Yao .

Diagnosis.

Body length 7.5 mm; body black; legs yellowish-brown; stigma and wing veins blackish-brown (Fig. 4 A, B ); clypeal emargination triangular, anterior margin incised to 0.3 × length of clypeus; malar space 1.2 × as long as diameter of median ocellus; inner margins of eyes convergent in frontal view (Fig. 4 D ); frontal area not elevated, medially slightly depressed, anterior wall notched medially; interocellar furrow broad and shallow, postocellar furrow narrow and shallow; POL: OOL: OCL = 1: 1.7: 1.3; postocellar area convex, middle furrow indistinct, approx. 3.0 × as wide as long (Fig. 4 C ); median mesoscutal groove shallow and thin, extending to the apex; distance between cenchri about 0.9 × as long as breadth of a cenchrus (Fig. 4 F ); lower part of mesepisternum with glabrous area; posterior margin of metepimeron rounded (Fig. 4 G ); harpes apex subacute, inner surface with small medial tubercle, basal 0.4 of length distinctly swollen (Fig. 4 H ); penis valve with basal width of narrow lobiform process 0.8 × that of broad lobiform process, narrow process shorter than broad process, broad lobiform process abruptly narrowing from midlength toward apex, lateral margins converging at 135 ° (Fig. 4 I ).

Etymology.

The specific epithet “ linealis ” is derived from the slender longitudinal groove in the center of the middle fovea.

Distribution.

China: Zhejiang.

Figures

Figure 4. Characters of P. linealis Liu & Wei, 2024, male, holotype A dorsal habitus B lateral habitus C head, dorsal view D head, anterior view E antenna, lateral view F thoracic notum G thoracic pleuron H gonoforceps I penis valve. Scale bars: 200 μm (F); 100 μm (G).