228 



NEW YORK STATE MUSEUM 



(L. H. Weld). The midge is closely related to T. h e 1 i a n t h i 

 Brodie from which it may be separated by its smaller size, longer 

 stems of the antennal segments of the male and the distinctly longer 

 palpi of the female. 



Trishormomyia proteana Felt 



1914 Felt, E. P. Psyche, 20:113 (Hormomyia) 



The midge was collected by C. W. Johnson at Aubumdale, Mass., 

 May 28th, and is easily distinguished from other large Hormomyias 

 by the antennal segments and specially the cylindric basal flagellate 

 antennal segments. 



1908 



1910 



in error) 



1918 



Trishormomyia canadensis Felt 

 Felt, E. P. N. Y. State Mus. Bui. 124, p. 388 (Hormomyia) 

 Stebbins, F. A. Springfield Mus. Nat. Hist. Bui. 2, p. 39 (Eriophyes, 



Felt, E. P. N. Y. State Mus. Bui. 175, pi. 4, figs 17, 17 (a) (Hormomyia) 



N. Y. State Mus. Bui. 200, p. 134, 135 (Hormomyia) 



This Species was reared in early April from galls (fig. 50) on shad- 

 bush, Amelanchier canadensis, taken in September 

 1907, by Cora H. Clarke at Magnolia, Mass., the deep 

 orange larvae deserting the galls in the fall and hibern- 

 ating in the soil. It has been recorded from Spring- 

 field, Mass., and occurs about Albany, N, Y. 

 Torymus ? ebria O. S. has been reared from 

 this gall. 



Gall. Length about 5 mm, projecting on the un- 

 der side of the leaf, mostly greenish and tapering to 

 a deep reddish lipped extremity. The upper surface 

 of the leaf is marked by a slightly rounded elevation 

 with a thick, whitish, woolly covering. The galls 

 are monothalamous and may occur singly or in 

 clusters. 



Female. Length 3 mm. Antennae extending to 

 the third abdominal segment, sparsely haired, yellow- 

 ish brown, fuscous basally; fourteen subsessile cy- 

 lindric segments, the fifth with a length about 

 twice its diameter; circumfila at the basal third, near 

 the middle and subapically, the loops with a length 

 about equal to one-half the distance between their bases; terminal 

 segment reduced, narrowly rounded. Palpi; the first segment stout, 

 irregularly oval, the second more than twice the length of the first, 

 tapering apically. Face fuscous brown. Mesonottim dark reddish 

 brown, the submedian lines sparsely haired. Scutellimi dark reddish 

 brown, postscutellimi reddish; pleurae a variable fuscous orange and 



Fig. 50 Tris- 

 hor momy ia 

 canadensis , 

 lipped galls 

 on Juneberry 

 leaf (author's 

 illustration) 



