226 THE CANADIAN ENTOMOLOGIST. 



NEW NORTH AMERICAN GALL MIDGES. 



BY E. P. FELT, ALBANY, N. Y. 



The following descriptions relate to undescribed species 

 which have been received from various localities during several 

 months past. 



Lestremia floridana, n. sp. 



The midge characterized below was collected by Mr. C. W. 

 Johnson and labelled Jacksonville, Fla. It is easily separable 

 from both L. elongata Felt and L. barberi Felt by the relatively 

 much longer antennal ^segments. The somewhat similar L. samhiici 

 Felt and L. kansensis Felt are easily distinguished from this species 

 by the much greater production and more slender character of the 

 terminal antennal segment. 



Female. — Length L2 mm. Antenna? extending to the base of 

 the abdomen, sparsely haired, reddish brown; 11 segments, the 

 fifth with a stem about }4- the length of the cylindric basal en- 

 largement, which latter has a length 2\^ times its diameter; 

 terminal segment moderately stout, only slightly produced, the 

 basal portion with a length three times its diameter and apically 

 with a short, stout, fusiform appendage. Palpi: first segment 

 narrowly oval, with a length over twice its diameter, the second 

 }/2 longer than the first, more slender, the third 3^^ longer than the 

 second, more slender, the fourth nearly twice as long as the third, 

 slender, irregular. Mesonotum yellowish brown. Scutellum yel- 

 lowish, postscutellu'm reddish yellow. Abdomen reddish brown. 

 Halteres, coxre and femora basally, fuscous yellowish, distal por- 

 tion of femora, tibiae and tarsi reddish brown. Claws moderately 

 stout, simple, the pulvilli about half the length of the claws. Ovi- 

 positor triarticulate, the terminal lobe narrowly ovoid and with 

 scattering, large setse in addition to numerous smaller ones. Type 

 Cecid. 1514. 

 Microcerata aldrichii, n. sp. 



The midges described below were collected by Prof. J. M. 

 Aldrich by sweeping winter wheat at Lafayette, Ind., May 6, 1914. 

 The species approaches closely M. spinosa Felt, from which it 

 may be easily separated by the darker colour and the fused eighth 

 and ninth antennal segments of the male, the latter having a length 



July, 191.5 



