Signochrysa Brooks & Barnard, 1990

Wu, Jingyu & Liu, Xingyue, 2024, Systematics of the green lacewing tribe Ankylopterygini Navás, 1910 (Neuroptera: Chrysopidae: Chrysopinae) from China, Zootaxa 5540 (1), pp. 1-169 : 136-137

Genus Signochrysa Brooks & Barnard, 1990

Signochrysa Brooks & Barnard, 1990: 162 . Type species: Leucochrysa mira Navás, 1913: 110 . Original designation.

Diagnosis. Body medium in size. Body length 9.0–12.0 mm, forewing length 10.0–13.0 mm, hindwing length 8.9–11.0 mm. This genus is characterized by the presence of the head with black spots between antennae and on the gena, the scape with reddish stripe on the outer side, the frons without spots, the black maxillary palpi, the pale yellow labial palpi, the pointed terminal palpomere, the pronotum with small spots on the anterolateral angle or lateral side, the mesoscutum and mesopleura usually with black spots, the metanotum without markings, the legs occasionally marked with black spots on tibia, the pretarsal claws with basal dilation, the narrow forewing with many brown shadings, the brown pterostigma of forewing, the narrow cell im, the gradates in two divergent rows, the basal crossvein of inner gradate series not meeting Psm, the closed cell dcc, the male sternum VIII fused with sternum IX, the sternum IX elongated and exceeded the apex of ectoproct, the ectoproct with two clusters of setae, the arcuate gonarcus, the small entoprocessus, the arcessus closely associated with gonarcus and with forked processus below the apex, the apically bilobed female subgenitale, the short or medium length female vela, the moderately deep or absent ventral impression, and the long coiled duct.

Distribution. Oriental and Australian regions.

Key to species of Signochrysa in China

1. Pronotum and anterolateral angle of mesoscutum with brown spots, metanotum without spots; female subgenitale quadrate, ventral impression deep..................................................................... Si. ornatissima

Small brown spots present on lateral side of pronotum, meso- and metanotum without spots; female subgenitale rounded, ventral impression absent......................................................... Si. jianfenglingensis sp. nov.