Abstract:

The larvae of Analcellicampa spp. (Hymenoptera, Tenthredinidae) are fruit borer of Cerasus spp. (Rosaceae). It has been reported in many provinces and regions in China that Cerasus spp. fruits are damaged severely by sawfly borers, but the name of the sawfly was unknown or misidentified. In this paper, a new species of Tenthredinidae collected from Gansu, Analcellicampa wui Niu & Wei, sp. nov., the larvae bore and eat the young fruits of Cherry, is described. The new species, A. wui, is similar to A. danfengensis (Xiao, 1994) from Shaanxi, Henan, Hubei and Hunan Provinces but differs from the latter by the followings: the apex of each coxa and entire trochanter yellowish brown; the hind tibia largely and antennomere 2 pale brown; the epicnemium of mesepisternum pilose and without naked area; the free abscissa of vein Rs basad the apex of vein 1M and remote from it, vein R+M as long as 1m-cu and much shorter than vein 1M; vein 2A of hind wing very short and about as long as cu-a; the abdominal tergite 1 deeply and triangularly incised with inner margins almost straight; lancet with large tangium, middle segments with distinct annuli and narrower than subapical segments. The K2P distance between the COI sequences of A. wui and A. danfengensis, and between those of A. wui and A. xanthosoma, are 7.29% and 8.54% respectively. A key to genera of Hoplocampini and 3 known Chinese species of Analcellicampa are also provided to facilitate the identification of the pests.

Key words: Hymenoptera, Tenthredinidae, Analcellicampa Wei, new species, China, cherry