THE CANADIAN ENTOMOLOGIST. 11 



segments, hind angles of the others except the last one, under surface of 

 each segment except the last one and base of the preceding, whitish ; 

 scales on yellow portion of femora yellowish white, those on the remainder 

 and on tibiae violet blue, those on the tarsi black except on the fourth 

 joint of the hind tarsi, where they are white, claws of front tarsi toothed ; 

 wings grayish hyaline, veins and scales brown, petiole of first submarginal 

 cell from two-fifths to three-fifths as long as that cell, hind crossvein less 

 than its length from the small ; length, 4 mm. Five female specimens. 

 Type No. 7341, U. S. N. M. 



l.as Penas and Tonala, Mexico (Dr. A. Duges), and Agricultural 

 College, Mississippi (May 18, Glenn \V. Herrick). 



Family CHiRONOMin.r.. 



Metriocnemtis K?iabi, new species. — Black, the knobs of the halteres 

 whitish, hairs of antennae brown, those of the body yellowish ; mesonotum 

 somewhat polished, front tibiie twice as long as the first joint of their tarsi, 

 hind tibiae outwardly fringed with rather long hairs, all tarsi with a short 

 pubescence, but without hairs, the fourth joint slender and longer than the 

 fifth ; wings grayish hyaline, densely covered with brown hairs, third vein 

 almost straight ; length, 1.25 to 2 mm Two males and four females bred 

 by Mr. Fred Knab, after whom the species is named. Type No. 732 r, 

 U. S. N. M. 



Westfield, Massachusetts. This European genus of Chironomidie 

 has not heretofore been recorded from this country. 



Family Oestrid^. 



Cuterebra gi'isea, new species. — '^ta.v fotitinella, but the hairs of the 

 mesonotum are wliitish ; also near saitetlaris, but the last abdominal 

 segment is largely opaque, gray pruinose. Black, the abdomen and legs 

 dark reddish brown ; front at vertex one and one-half times as wide as 

 either eye, its hairs black and with several yellow ones on the lower 

 pottion, two gray i.ruinose spots along each eye and one on either side of 

 insertion of antennae; face and cheeks densely gray pruinose, the upper 

 portion of sides of face broadly, a triangular spot on either side of lower 

 part of facial cavity, a small spot at l.jwer end of each eye and one nearly 

 midway between it and the oral margin, also two streaks along the anterior 

 portion of the latter, polished, margins and lower poriion of facial 

 depression, except in the middle, also polished, hairs of face and cheeks 

 whitish, those on upper portion of face chiefly black ; (untennie wanting^ ; 



