Lasioptera nodulosa sp. nov.

Lasioptera farinosa [partial synonym; retained as valid species for other galls]

Gall.--Knot-like or gouty, elongate or rounded swelling on the smaller terminal branches of blackberry (Rubus villosus [flagellaris]). Often there are several galls upon a single twig. Inside there is an elongate chamber inhabited by a single larva. The larva transforms in the gall and the adults emerge in May and June.

Habitat: NY, OH, NJ

The galls are larvae were described and figured by Professor John B Smith and FM Webster as Lasioptera farinosa but they belong to the new species here described. The gall is quite common everywhere in the vicinity of New York City; it somewhat resembles the swellings produced by the larvae of Agrilus ruficollis, which is found on the large stalks of blackberry.

- William Beutenmuller: (1907) New species of gall-producing cecidomyidae^©