146 



NEW YORK STATE MUSEUM 



1871 

 I907 

 1907 

 1908 

 1910 



Asphondylia conspicua O. S. 



Osten Sacken, R. Amer. Ent. Soc. Trans., 3:51-52 

 Beutenmueller, William. Amer. Mus. Nat. Hist. Bui. 23:387 

 Cook, M. T. Acad. Sci. Proc. Sep., p. 6 

 Felt, E. P. N. Y. State Mus. Bui. 124:377 

 Stebbins, F. A. Springf . Mus. Nat. Hist. Bui. 2 154 



This large midge frequently attains a length of 5 or 6 mm and 

 makes a very large gall on the flower heads of Rudbeckia 

 triloba. |It is closely related to A. globulus 0. S. from 

 which it is easily distinguished, according to Osten Sacken, by the 

 darker color of the hind tibiae and tarsi, though in our own series 

 we have failed to find this character of much service. A more strik- 

 ing feature is the much darker mesonotum. A comparison of type 

 specimens in A the Museum of Comparative Zoology at Cambridge, 

 Mass., showed that these two species are probably distinct though 

 closely related. There may be some difference in the pupal armature. 

 Our studies of material reared from a typical gall show that in A. 

 conspicua the male palpi are three-segmented, the third antennal 

 segment has a length about six times its diameter and that of the 

 female a length of seven times its diameter. There are also differ- 

 ences in the male genitalia. The gall .was taken at Bath, Rens- 

 selaer county, N. Y., ^August 16, 1907 and was received from High- 



Fig. 27 Asphondylia conspicua. 



(original) 



Breastbone of larva, enlarged 



spire, Pa., August 17th; adults emerged from August 24th to 30th. 

 Specimens doubtfully referred to this species were taken in a trap 

 lantern at Newport, N. Y., July 2, 1906; captured by Prof. C. 





