THE CANADIAN ENTOMOLOGIST. 237 



who writes me that the gall was taken on the west slope of the Organ 

 Mountains, in N. M., from a leaf of Q. wrightii. 



Gall-fly.— A single female fly, in perfect condition, accompanied the 

 gall, and may be described as follows : 



Colour, rufous and black. Head, genne, orbits, vertex and bases of 

 mandibles rufous ; middle of face, occiput and tips of mandibles black ; 

 face finely rugose, punctured and sparsely haired, the hairs rising from 

 the punctures ; vertex and genai more finely rugose or granular in appear- 

 ance, palpi yellowish, antennae rufous, t4-jointed, 3rd joint and last three 

 joints blackish, 3rd joint distinctly longer than the 4th. Thorax: Pro- 

 thorax rufous and finely rugose, mesothorax above blackish, streaked with 

 rufous along the parapsidal grooves and along the lateral margins over 

 the bases of the wings, otherwise black. The surface is finely rugose and 

 set with punctures, moderately hairy, parapsidal grooves entire and very 

 distinct, but not broad, median groove absent, the polished parallel lines 

 extending back from the collar, and those outside the parapsidal grooves 

 over the bases of the wings conspicuous; scutellum rugose, rufous, except 

 at base, where it is black, with shining basal groove crossed by numerous 

 raised lines ; mesopleurae rufous above and below, but black on median 

 portion, punctured and moderately hairy. Abdomen black and shining, 

 venter somewhat rufous, posterior margin of segments very oblique, sides 

 of 2nd segment near base hairy. Wings long, nervures black, cells con- 

 taining numerous black spots. This beautiful maculation of the wings, 

 unlike any other species with which I am familiar, suggested the specific 

 name for the species. Feet dark rufous, femora blackish, rather hairy. 



Length, 3 mm. Wings^ 4 mm. 



Dryophanta, Forst. 

 D. glabra, "n. sp. 



Galls of this species were found abundant by the writer on leaves of 

 Quercus luidtdatadxyizmiow, Colo., Sep. 30th, 1892. The fresh galls 

 are straw-coloured, becoming brown with exposure. They are semi- 

 globular, flattened on the side next the leaf, from 4 to 6 mm. in diameter, 

 and situated along the midrib of a leaf, on either surface, but mostly 

 below. A single larval cell in each lies next the leaf, and from it a mass 

 of delicate fibres radiate to the outer shell, which is rather firm. The 

 inner surface of this shell, in galls that have been protected from the 

 weather, is of a deep pink colour. A number of the galls usually occur 

 on the same leaf, and sometimes crowd one another, so they are far from 

 globular. 



