184 Journal New York Entomological Society. [Vol. xm. 



mouth is another slightly larger one. The pollinosity of the lower face extends behind 

 the eyes to the vertex and is supplemented with a short white pubescence, for the 

 most part thin but becoming long and dense around the margins of the cheeks and 

 about the mouth, extending also upward from the mouth along the raised line to the 

 facial depression. Antennae with first two joints dark brown, the arista and its hairs 

 blackish except on apical one third, which is pale. 



Thorax above dark leaden bluish, without lustre, covered with a very short, thin, 

 black pubescence, this becoming much longer and denser on the scutellum, which is 

 fringed posteriorly with a short but very dense yellowish white fringe. Pleura and 

 under surface of thorax with long, very dense, yellowish white pubescence, extend- 

 ing in a narrow fringe of short dense hair over the wings and along the margins of 

 the thorax. A small tuft of black hairs is just above the center of the pleura, and 

 two adjacent large bare spots are about midway between it and the anterior coxae, on 

 a pollinose spot bare of pubescence. Two similar spots are just above the interme- 

 diate coxae, and on a similar pollinose spot. Just above the insertion of the poste- 

 rior legs is a tuft of long black hair. Wings brownish hyaline. 



Abdomen shining steel-blue, the basal segment bare, the second segment with 

 a conspicuous tuft of white hair in each side near base, otherwise devoid of pubes- 

 cence but with a white pollinose space on extreme sides, which is dotted with two or 

 three small exposed dark spots. Following segments steel-blue dorsally but with lat- 

 teral margins, especially at base, and entire under surface white pollinose, varied with 

 numerous large, round, exposed steel-blue spots and a thin short black pubescence. 

 Legs black, the femora brownish, with short black pubescence, the bases of the 

 femora, especially on intermediate and posterior legs, whitish pollinose ; on the pos- 

 terior legs the femora have the basal half so, as well as the under surface of the 

 tibiae and the upper surface of the apical tarsal joints. Length, 19 mm. Width of 

 head at vertex, 8.5 mm. 



Type: One female specimen, Hecla, Wyoming (S. G. Clason). 

 Collection University of Nebraska. 



This species is closely allied to both C. buccata and C. lepusculi, 

 but apparently differs from either by possessing the pale hair tufts on 

 the second abdominal segment. The face marks, especially the supe- 

 rior pollinose spots, seem also to differ from either. 



Cuterebra fasciata, new species. 



$ . Head black, slightly shiny, provided with very short, black hairs. A small 

 triangular white pollinose spot is contiguous to the orbits on each side at upper level 

 of facial depression, and another minute spot between it and the upper extremity of 

 the depression, while still another is located contiguous to the anterior lower margin 

 of each orbit. The extreme lower margin of the head between the eyes is white 

 pollinose, but this is almost concealed by along, very dense, white pubescence which 

 forms a thick fringe, narrow laterally but widening medially to surround the mouth. 

 The basins of the facial depression are pale silvery pollinose. Antenna; black, the 

 apical two thirds of the arista and its hairs pale. Vertex at narrowest point three 

 times the distance betweed two posterior ocelli. 



