172 Dr. C. P. Alexander on 



Xenotijnda miinroi, sp. n. 



Male with the wings and legs much larger and longer than 

 those of the female; general coloration brownish testaceous, 

 the mesonotum unmarked with darker ; wings yellowish 

 grey ; Sc2 ending opposite mid-length of Rs ; cell \st M2 

 narrowed outwardly ; cell 2nd A moderate in width. 



Male. — Length about 6-65 mm. ; wing 8*5-9 mm. Fore 

 leg, femur 4*6 mm. ; tibia 5'5 mm. ; hind leg, femur 6 mm.j 

 tibia 5'4 mm. ; tarsus about 18 mm. 



Female. — Length 6 mm. ; wing 5-6'3 mtn. Hind leg, 

 femur 3 mm. ; tibia 3 mm. ; tarsus about 5*5 mm. 



Male. — Frontal prolongation of the head very short and 

 stout, yellowish brown ; nasus lacking ; palpi light brown. 

 Antennal scape light yellow ; first flagellar segment testa- 

 ceous; remainder of the flagellum dark brown. Head 

 brown, broadly yellowish adjoining the inner margins of 

 the eves ; vertex between the eyes very broad. 



Mesonotum pale brownish testaceous Avithout darker 

 markings. Pleura pale testaceous yellow. Halteres light 

 brown, the knobs a little darker. Legs with the coxse pale 

 testaceous yellow ; trochanters pale yellow, each with a 

 conspicuous brown spot on the posterior face ; remainder of 

 the legs testaceous brown ; fore tibiae a little longer than 

 the fore femora ; hind tibiae shorter than the hind femora ; 

 tarsi very long and slender, the metatarsi alone much longer 

 than the combined femur and tibia ; claws small, simple. 

 Wings with a strong yellowish-grey tinge; stigma darker, 

 brown ; veins brown. Yenation : Sci ending about opposite 

 mid-length of Rs, Sci lacking ; Rs long, gently arcuated at 

 origin ; R2+3 about two-thirds of Rs ; tip of R^ sub- 

 atrophied ; outer section of R2 atrophied or barely 

 persistent; only two branches of media reach the wing- 

 margin ; cell 1.?^ M2 long-pentagonal, narrowed outwardly, 

 m being less than one-third the outer deflection of M. ; 

 m-cu distinct ; cell Cui deep, Cu2 being about one-half 

 longer than the basal deflection of Cui ; vein 2nd A almost 

 straight, cell 2nd A of moderate width. Macrotrichise on 

 the penultimate section of 7?i, on i^2+3> ^z-> and S4+5. 



Abdominal tergites pale brown, the caudal margins 

 darker ; sternites more yellowish testaceous. Hypopygium 

 of simple structure. Ninth tergite short, the posterior 

 margin notched, the surface and margin of the tergite with 

 conspicuous bristles. Ninth sterno-pleurite elongate, the 



