ART. 15 NEW GENERA AND SPECIES OF MUSCOID ELIES ALDEICH 7 



row ; the second has one pair of discal, one pair of median marginal 

 and one lateral ; the third has one discal and an encircling marginal 

 row of 12; the fourth has one discal and a marginal row of 10. 



Legs moderately slender, the front tarsi distinctly compressed, 

 deep black, and about one-fourth longer than the tibiae. Middle 

 tibia with one bristle on the outer front side, two smaller on the 

 outer hind side, and one flexor; its tarsi are black, not enlarged, 

 and as long as the tibia. Hind femur with five bristles on the upper 

 anterior side, two on the lower posterior; hind tibia with three 

 bristles on inner hind side, three on the outer hind, and two on the 

 outer front side; the tarsi deep black and a little shorter than the 

 tibiae. 



Wing large, rather narrowed toward the base, the venation almost 

 as in liturata, but the bend of the fourth vein without appendage. 

 The first posterior cell has the same comparatively wide opening a 

 little before the tip of the wing. There is a small but distinct costal 

 spine; the apical third of the wing is infuscated, more intensely on 

 the apical part, and a broad dark shadow follows the fifth vein 

 almost from the base to its apex, where it blends with the apical 

 infuscation. The basal two-thirds of the wing, except behind, is 

 dark yellow ; the first vein is bare and the third has only one or two 

 minute hairs at the base. 



Length, 10 mm. 



Described from one specimen, Couchamayo, East Peru (Rosen- 

 berg). 



ry;?e.— Female, Cat. No. 41811, U.S.N.M. 



On account of the condition of the specimen some of the chaeto- 

 taxy may be incorrect and it is possible that in a well-preserved 

 specimen the calypters would be larger, in other words they may 

 be partially broken off. There would seem to be plenty of characters 

 for a new genus allied to Euantha, but it would be advisable to 

 await the examination of a good specimen before establishing such 

 a genus. There is no question that Euantha is a closely allied 

 genus. 



CALLOTROXIS, new genus 



Male only. Dexiid-looking flies of about the build of the common 

 Ptilodexias of the United States, but differing mainly in having pilose 

 eyes, short proboscis, and vibrissae at level of mouth. 



Postscutellum and hypopleural bristles present. Antennal axis of 

 head equal to vibrissal. Outer vertical only as the last of the post- 

 orbital series of rather long and slender hairs ; ocellars only a cluster 

 of hairs; frontals beginning a little before ocellar triangle, none 

 reclinate, about 10 in all, the lowest hardly reaching base of antennae ; 



