130 inse;cutor insciti^ menstruus 



Abdomen all gray-black ; hypopygium yellow-brown, all with 

 short thick hairs; segments two to five with apical bristles. 



Legs and coxae yellow-brown, tarsi slightly darker; mid 

 femora with many strong bristles outside. Mid tibia about 

 the center with one spine on the inside and two outside ; two 

 preapical bristles. 



Wings hyaline, veins dark brown, large crossvein leaving 

 vein four at more than a right angle, and joining five at an 

 acute angle. 



Cell first R, along the center almost equal in depth to that 

 of the cell below R 3. 



Described from one male, holotype, 39th March, Cranbrook, 

 British Columbia. 



The female taken here but not in copula is similar, except 

 that the pleura are a lighter brown, the second sternopleural 

 bristle is only a long hair, abdomen two to five dark brown, 

 edge paler. The large crossvein as in the male, but from the 

 center to vein four it is curved, thus leaving four at nearly a 

 right angle. 



Two females, allotype and paratype, 28th April, Cranbrook, 

 British Columbia; 28th July, Michel, British Columbia. 



Acantholeria, new genus (from the Greek akantha, spined, 



and Leria). 



Foremost fronto-orbital missing, hair-like, or about one- 

 third of the hind one, very rarely in the female nearly a half. 

 No prosternals ; four large strong dorso-centrals, etc. Males 

 with a bunch or a comb of spines on the inside of the hind 

 femora, and on the lower side of the mid femora near the 

 apex a row of short spiny bristles on the outer and inner edge. 

 Females with no cerci, the hypopygium on the outside all 

 round set with short spiny bristles, usually the tips curved 

 outward. (Females that presumably have laid eggs, often 

 have lost most of these spines, from which we might gather 

 that they are used for the purpose of pushing the ovipositor 

 into something to leave the &gg behind. The local specimens 

 all seem to be taken above or near large dampish cellars.) 



Genotype. A. cineraria Loew. 



