1920] Melander — Synopsis of the Dipterous Family Psilidw 99 



costal section three times the third, first vein ending near middle 

 of the wing, third and fourth veins parallel. 



Two specimens. Spokane, Wash., 30 August (Melander) ; 

 Whitman National Forest, Ore., July (W. J. Chamberlin) in the 

 collection of F. R. Cole. 



Chyliza leguminicola sp, nov. 



Length, 4-7 mm. Black, the anterior part of the front, the im- 

 maculate face, cheeks, occipital orbits, antennae and scutellar 

 margin luteous, the extremities of the femora, the tibiae except dis- 

 tal half of hind pair, and the tarsi flavous, coxae fuscous, halteres 

 whitish. Front square, eyes large, palpi broad, frontal bristles 

 black and inconspicuous, arista piceous, cephalic pubescence yel- 

 low. Thorax with strong piligerous punctures, the yellow hairs 

 more or less whorled, bristles black, reduced in size and number to 

 one pair each of supra-alar, intra-alar, dorsocentral and acrostichal, 

 four scutellars. Abdomen sericeous with golden pubescence. 

 Calypteres and fringe yellow, wings infumated, darker anteriorly, 

 veins firm and black, costal sections proportioned 4:5 : 2, fourth 

 vein 1.5 : 2 : 3, fifth vein 10 : 1, hind crossvein transverse. 



Three specimens sent by L. P. Rock wood, who has swept this 

 fly from the lupine, Lnpimis polyphyllus Lindl., at Forest Grove, 

 Ore., toward the end of April. He has also found puparia at- 

 tached to the lower part of this plant during July, from which adults 

 emerged the following March when wintered at room temperatures. 



Chyliza erudita sp. nov. 



Male. Length, 5 mm. Black, closely but not deeply punctured, 

 the pale pubescence dense and appressed, bristles black. Head 

 variegated black and yellow, the occiput black except the lower 

 orbits, front subshining, centrally brownish, measuring in width 

 seven-eighths the depth of the eye, frontal triangle narrow, reach- 

 ing two-thirds the length of the front, two fronto-orbitals, face 

 yellow, with two blackish subantennal spots, cheeks black except 

 at the mouth-opening, mouthparts black, the palpi very broad; 

 antennae yellow, the upper edge darker, arista white and feathery 

 pubescent. Thorax entirely black except the reddish tip of the 

 scutellum. Legs including the coxae pale yellow, the hind femora 

 with prominent black subapical ring. Halteres pale yellow. 



