138 ENTOMOLOGICAL NEWS. [May, '05 



A New Milesia from Arizona with Notes on Some 



Wyoming Syrphidae. 



BY ROY L. MOODIE, The University of Kansas, Lawrence. 



The Wyoming Syrphidae were collected from June to Sep- 

 tember of the past summer in the central portion of Fremont 

 County, Wyoming, near the town of Lander, which is situated 

 near the eastern base of the Wind River Mountains. The 

 altitudes varied from five thousand to eight thousand feet. 

 The character of the country is that of most of the Western 

 States, dry and but sparsely settled. Very little vegetation 

 grew except along the banks of the streams. Since few, if 

 any, Diptera have been reported from this region I venture to 

 offer these notes on the Syrphidae as a contribution to the 

 geographical distribution of the group. 



To Doctor F. H. Snow, of the University of Kansas, my 

 warmest thanks are due for permission to study and describe 

 the new Milesia. Dr. Charles F. Adams has assisted me 

 greatly by his kind advice and interest in my studies. He has 

 confirmed most of my identifications. 



Milesia mida sp. nov. 



Male. Length 16-18 mm. Face light yellow, thickly covered with 

 similar pollen and pile, concave below the antennae. Just above the base 

 of the antennae there is a small triangular spot. The antenna; and aristae 

 are entirely reddish brown, in profile situated in the middle of the head. 

 Cheeks narrow with a black spot near the orbit. Frontal triangle same 

 as the face. Vertical triangle black, yellow before the ocelli. Eyes bare, 

 in the male contiguous for a short distance. Occiput black, posterior 

 orbits broadly yellowish pollinose. Thorax black, opaque, with light 

 yellow markings, as follows : A pair of median stripes gently converg- 

 ent posteriorly and extending but little beyond the middle of the thorax ; 

 humeral callus oval, slightly elevated, yellow, one millimeter in width, 

 seperated from the adjacent median stripe by a narrow black line ; near 

 the posterior end the median bands are joined by a yellow cross-band 

 which is interrupted between the median bands and extends laterally to 

 the base of the wings ; posterior margin of the thorax covered by an 

 entire yellow band ; postalar callus yellow. Scutellum black with its 

 posterior margin yellow. Pleura on the anterior border from the humeri 

 to the base of the coxce, black. Meso-pleura with a vertical, sterno- 

 pleura with an oval nearly contiguous, spot. Teguke and haltei es yellow. 

 Abdomen : First segment black ; second segment black with a yellow 



