1882.] 205 



at tho base ; it is marked by tbe usual angular stripe (as in JT. scalaris) ; the legs 

 arc often piceous ; the middle femora are ciliated beneath with long hairs, the mid- 

 dle tibiffl are thickened along their lower halves, and ciliated nearly the whole length 

 of their inner sides, the hairs becoming longer towards the apices ; the posterior 

 tibia? have a few long hairs of irregular lengths on their outer sides, and only tho 

 usual short adpressed ones on their inner surfaces ; the poisers and scales arc some- 

 times fuscous. Not very common. 



H. FLORICOLA, Mcig. 

 This species may be readily known by its brownish wings, and widish, straight, 

 interrupted dorsal band on the abdomen, having no angular dilatations. The tibiaj, 

 especially the posterior ones, ai'c piceous or sub-rufous ; and there are six strong 

 projecting spines on the infra-thoracic surface, one arising from the base of each 

 coxa. Kot uncommon. 



II. CARBONAHIA, Roiul. 

 This little black species is well marked, and generally distributed ; the calyptra 

 are small, and, with the haltcres, black ; the wings are fuscous ; the abdomen is 

 short and wide, flattened, and marked with the usual aiigulated dorsal stripe; the 

 middle tibia> are thickened towards their ends, which are shortly ciliated on the 

 inner sides ; the posterior tibiie are unarmed ; there is a minute black spur or tooth- 

 like process on the under-side of each middle metatarsus at its base ; a similar but 

 larger process is found in the same situation in U. armata ; on close inspection with 

 a good lens, this is apparently formed by a pencil of rigid black hairs. I believe 

 this species to be identical with the A. area of Meigen, but not with that of Zetter- 

 stedt ; the latter is considered by Locw to be the same as the A. gihbera of Meigen, 

 and to belong to the genus Azelia. 



(To be continued). 



