Diprionidae · pušiniai pjūkleliai

EN · conifer sawflies DE · Buschhornblattwespen LV · skujlapseņu dzimta, skujkoku zāģlapseņu dzimta PL · borecznikowate

https://en.wikipedia.org/wiki/Diprionidae Larvae are often gregarious, and sometimes there can be major outbreaks, thus these sawflies can be major forest pests at times. The family has distinctive antennae with about 20 flagellomeres. Males have pectinate antennae and females have serrate antennae.