PSILOPUS. 



scarce than in the male, if it has not been perhaps somewhat rubbed 

 off in the latter ; the whitish pubescence of the venter much shorter. 

 Feet of the same coloring as in the male ; the whitish pubescence 

 of the femora is much shorter, still upon their under side of 

 considerable length for a female; upon the under side of the fore 

 femora, near the basis, there are also some stiff, nearly bristle-like 

 whitish hairs of a remarkable length. Pubescence and bristles of 

 the tibiae generally like those of the male, still all bristles are not 

 so long, and upon the upper- side of the fore tibiae, the alternating 

 shorter bristles are very small. Fore tarsi hardly once and a half 

 the length of the tibia? ; their first joint much longer than the 

 following taken together, fringed upon the upper side with a 

 regular row of short black bristles, upon the under side with only a 

 few still shorter black bristles ; the following joints of decreasing 

 length, from the second to the fourth brown, the fifth black. Middle 

 tarsi distinctly longer than the tibiae, not ciliated upon the upper 

 side ; the first joint distinctly longer than the four following taken 

 together ; the latter black-brown and of decreasing length. Hind 

 tarsi brownish-black, much shorter than the tibiae, the first joint 

 hardly somewhat longer than the following taken together. 

 Wings as in the male, only somewhat shorter, also proportionally 

 less narrow. 

 ' Hab. Middle States. (Osten-Sacken.) 



ObservoMon. Whether the distinctly darker color of the tarsi 

 of the 91 is only an accidental, individual deviation or not, cannot 

 be judged from a single specimen of each sex. 



2. Arista distinctly dorsal and not particularly elongated. 



a. Fore tibiae only in the , fore and middle tibiae in the , yellow. 



1O. P. Clirysoprasitis WALK. and 9 . Viridis, vel ex viridi 



chalybeus, nitidus, alls immaculatis, facie nuda. 



. Abdomine fasciis latiusculis nigris ornato, halterum nigrorum capitulo 

 fusco, pedibus nigris, tibiis anticis flavis, tarsorum intermediorum 

 articulo primo superne pilis erectis rigidis ciliato. 



9 . Abdominis fasciis nigris, angustissimis, halteribus flavis, pedibus nigris, 

 tibiis anterioribus flavis. 



Green or greenish blue, shining ; wings without picture, face with&ut 

 hairs. 



. Abdomen with rather broad black bands ; knob of the black halteres 

 brown; feet black, the fore tibise yellow, the first joint of the middle 

 tarsi upon the upper side ciliated with upright stiff hairs. 



