20 THE CANADIAN ENTOMOLOGIST. 



SYNOPSIS OF THE ASILID GENUS ANISOPOGON. 



BY D. W. COQUILLETT, LOS ANGELES, CAL. 



The following table includes those species of Anisopogon at present 



known to occur in this country north of Mexico : —  



i. — Scutellum (except sometimes its extreme base) black 2 



Scutellum and face yellow, abdomen yellow, marked with five black 



fasciae, wings pale yellow vespoides, Bigot 



2. — Abdominal segments one to four wholly black 3 



Abdominal segments three to six (except sometimes their lateral mar- 

 gins) reddish 5 



3. — Wings pure hyaline, the cross veins and furcations alone sometimes 



clouded with brown ; tibiae reddish 4 



Wings more or less brown, the apex never blackish. . . .ludius, n. sp. 



„ r , . ., . f phoenicurus, Loew. 



Wings having the apical half blackish r .,, T 



& s> f [globus, Loew. 



4. — Pollen of abdomen extending on the bases of the segments 



senilis, Bigot. 



Pollen confined to the apices of the segments lautus, Loew. 



5. — Wings nearly uniform, smoky-gray ; head, first two joints of 



antennae, thorax and legs obscure brown rubidus, n. sp. 



Wings smoky-brown, darkest on apical half; head, antennte and 



thorax black patruelis, n. sp. 



Anisopogon ludius, n. sp. £ . — Black, the tibiae and tarsi dark reddish- 

 brown. Face gently convex, white pilose, bristles of lower part black : 

 first joint of antennae slightly longer than the second, the third joint 

 tapering to the tip, three times as long as the second, the style slender, 

 seven-eights as long as the third antennal joint ; pile of occiput, thorax, 

 pleura, coxae and venter white ; upper side of each front tarsal joint with 

 a dense covering of appressed white hairs ; upper side of middle femora 

 toward its apex with a dense covering of short appressed black hairs, 

 which, however, leave a large elliptical naked space between the apex 

 and the middle ; middle tibiae white pilose in front, and above the middle 

 ornamented with a large patch of appressed black hairs and bristles, 

 which form an inner and an outer fringe; inner side of hind tibiae near 

 the tip, and also of the hind metatarsi, densely bright yellow pubescent ; 

 wings smoky brown, lightest at the apex and along the hind margin ; all 

 posterior and the anal cell open. 



9 as in the male, except that the front tarsi, middle femora and 



