130 THE CANADIAN ENTOMOLOGIST. 



Mallophora fulva^ n. sp. 



Closely related to M. orcina, but distinguished as follows ; No black 

 hair on sides of face, the scutellum and abdomen with fulvous (instead of 

 pale yellowish) hair, and no white hair (all black) on the last joint of the 

 hind tarsi ; the bristles in front of the halteres are pale yellowish (black in 

 M. orcina), and there are a few yellowish hairs at base of the wings. The 

 facial tubercle (seen from the side) slopes off more gradually above than 

 in M. orcina. 



From Palmerlee, Arizona, Sept. (Biederman). 



Laphria dispar^ n. sp. 



Face with dull tawny pubescence, long black hair below with a few 

 yellow ones, and black hairs around base of antennae, behind mouth-parts 

 and cheeks white hair, while that on occiput and vertex is black ; thorax 



black, with black hair, a denser tuft on the humeri, 

 and long black bristles on the sides ; long erect 

 hair on the scutellum , some short tawny hairs at 

 tip of the mesothorax ; the row in front of halteres 

 mostly white, but the upper ones are black ; pleura 

 black. Legs black, anterior coxae densely long 

 white-haired, also some on the middle coxse, front 

 and middle femora, and tibiae with long white hair, 

 the middle tibiae with two outer rows of long black 



Fig. 5. — Laphria disbar, ... --iiiii-.i i-jr j 



male genitalia. bn&tles, tarsi With black bristles, hind femora and 



tibiae with pale hair on basal part, rest blackish, 

 about four or five curved bristles on outer side of hind tibiae, each about 

 twice as long as the width of the joint. Abdomen black, with fulvous hair 

 on apical parts of segments, denser at the outer angles, and more on apical 

 segments than on basal ones, apicals frequently covered with fulvous hair ; 

 hypopygiiim black ; wings hyaline, tinged with darker, especially on the 

 apical half; venation blackish. 



A female has the abdomen more densely fulvous-haired, and the 

 dorsum of thorax with fulvous hair. 



Length, 13 to 15 mm. 



From Ithaca, N. Y., July; cotypes from Hecton Mills, Penna,, May 

 and June (coll. Walton). 



This species has been mixed with L. ser'icea, but the genitalia of the 

 male are very different ; L. sericea has more yellowish hair on the face, 

 etc. It differs from L. ceatus in absence of tawny hair on chest, in black 

 abdomen, absence of white fringe at base of abdomen, etc. 



