262 QUARTERLY JOURNAL. 



fulvous brown ; and the breast is of the same color, instead of light 

 yellow as in the tritici. The last joints of the feet, moreover, are 

 commonly though not invariably black in this species, and there is 

 often a broad black band at the base of the anterior tarsi. 



The males have the antennae composed of twenty-four joints, each 

 encircled as usual with a row of hairs. These joints approach a 

 globular form, but have, in common with those of the males of 

 several other of our species, this striking peculiarity, namely, that 

 through the whole series, though preserving the same diameter, 

 they are alternately shorter and longer ; twelve being compressed- 

 globular or double-convex, and between each of these a very short 

 cylindrical joint with convex ends. 



This species is closely related to the ornata of Say {Appendix to 

 Long's Expedition, p. 357), but is readily distinguished from that , 

 by its blackish antennae, the color of which contrasts strongly with 

 that of the legs ; by the greater number of spots on its wings, and 

 these spots not being "occasioned by the greater density of the hair, 

 of the surface in those parts." In the latter character it also differs 

 from the pictipennis of Meigen, as described by Macquart ; as also 

 in not having the spots forming bands across the wings. If any 

 description of the maculipennis of Stephens, in his catalogue of 

 British insects, has ever been published, I have not met wiih it. 

 That this species, however, exists abroad, is highly probable, from i 

 the fact that the specimens reared from wheat-worms by Mr. Mark4 ^ 

 wick had " spotted and transparent wings," as he describes them, 

 or "obsolete clouds" as they were termed by Mr. Marsham. Mr. 

 Curtis calls attention to this fact respecting these specimens, ap- 

 parently from a suspicion thus excited that another species existed. 

 He says, " I am particular in noticing this, because the wings of 

 Mr. Kirby's C. tritici are not spotted, nor are any individuals that 

 I have seen ; and excepting the C. pictipennis, which is larger, I 

 know of no species of the genus with spotted wings." 



The species under consideration, may appropriately be named 

 and characterized as follows : 



Cecidomyia caliptera. Orange-red ; base of the tergaim blackish : 

 wings hyaline, with seven dusky spots : legs whitish ; tarsi black at tips. 

 Length 0*05. 



