THE CANADIAN ENTOMOLOGIST. 415 



Lasiopiera lindercB Beuten. 



Lasioptera (?) linderce Beutenmuller, Bull. Am. Mus. Nat. 

 Hist., Vol. XXIII, 1907, p. 398, pi. XIV., fig. 3-6 (gall and larva). 



Male and Female. — Head black, face and posterior portion 

 snowy white; antennae black, first, second and third joints white. 

 Thorax velvety black, broadly bordered with white around the 

 anterior portion to the base of the wings. In the grooves are a few 

 scattered pale brown hairs. Scutellum black, with a few long white 

 hairs. Abdomen black, first segment white, second segment with 

 a small white mark on the dorsum posteriorly, the two following 

 segments each with a broad white band posteriorly, the remaining 

 segments wholly black. Under side of abdomen broadly white. 

 Legs pale brown or sordid white; tibiae marked with black at the 

 middle. Wings hyaline with black scales and a white mark at the 

 middle of the costa and at the base of the wings. Halteres white. 

 Expanse 3 mm. 



The adults are here described for the first time. They emerge 

 from the galls in June. 



Lasioptera vernonice Beuten. 



Cecidomyia (?) vernonice Beutenmuller, Bull. Am. Mus. Nat. 

 Hist., Vol. XXIII, 1907, p. 389, pi. XV., figs. 7-8. 



Male and Female. — Head white in front, black posteriorly; 

 antennae black ; first and second joints white. Thorax deep velvety 

 black, with a very broad white margin around the anterior portion 

 to the base of the wings. In the two grooves of the thorax are a few 

 scattered, white hairs. Scutellum scaled with white and with a 

 few long hairs of the same colour. Abdomen deep velvety black, 

 each segment with a very narrow white band posteriorly and not 

 extending to the extreme sides of the abdomen. Legs black, with 

 the joints pure white; coxa? white. Under side of abdomen broadly 

 white. Wings blackish hyaline, with a white mark at the middle 

 on the costa. Halteres white. Expanse 3.5 mm. Length 1.5 

 mm. 



Heretofore, this species was known only from the larva and 

 gall. 



Cecidomyia meibomicB Beuten. 



Cecidomyia (?) meibomicB Beutenmuller, Bull. Am. Mus. 

 Nat. Hist., Vol. XXIII, 1907, p. 390, pi. XV, figs. 9, 10, 11. 



