Pristiphora decipiens (Enslin, 1916)

Pristiphora decipiens - Pristiphora abietina group

In the female, the head is mostly pale above. In dorsal view, the sawsheath has distinct scopa posteriorly. In lateral view, the posterior margin of the sawsheath is truncate. Claws have a large subapical tooth. Males should be determined by the penis valve, but in both sexes, the mesepisternum is pale in Pristiphora decipiens (black in the similar Pristiphora compressa).

Larvae feed on spruces.

 

Size: Probably 6.0 - 9.0mm

Status: Data deficient

Distribution: England, Scotland

Flight period: May to July

Plant associations: Picea spp. (spruces)

References:

Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London

Liston A, Knight G, Sheppard D, Broad G, Livermore L (2014) Checklist of British and Irish Hymenoptera - Sawflies, ‘Symphyta’. Biodiversity Data Journal 2: e1168. https://doi.org/10.3897/BDJ.2.e1168

Prous, M., Kramp, K., Vikberg, V. and Liston, A., 2017. north-Western Palaearctic species of Pristiphora (hymenoptera, tenthredinidae). Journal of Hymenoptera Research, Vol. 59