172 Dr. C. P. Alexander on 



Xenotipula munroi, sp. n. 



Male with thewiTigs and legs much larger and longer than 

 those of the female; general coloration brownish testaceons, 

 the mesonotum nvimarked with darker ; wings yellowish 

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

 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. ; til)ia5*5 mm. ; hind leg, femur 6 mm.; 

 tibia 5"4 ram.; tarsus about 18 mm. 



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

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



Male. — Fiontal 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 eyes ; vertex between the eyes very broad. 



Mesonotum pale brownish testaceous without darker 

 markings. Pleura pale testaceous yellow. Halteres light 

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

 testaceous yellow ; trochanters pale yellow, each with a 

 conspicuous brown spot on the posterior face ; remainder of 

 the legs testaceons brown ; fore tibiae a little longer than 

 the fore feraora ; hind tibiae shorter than the hind feraora ; 

 tarsi very long and slender, the raetatarsi alone much longer 

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

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

 brown; veins brown. Venation : Sc^ ending about opposite 

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

 origin ; 7^2+3 about two-thirds of Rs ; tip of Ri sub- 

 atrophied ; outer section of i?2 atrophied or barely 

 persistent; only two branches of media reach the wing- 

 margin ; cell 1st M2 long-pentagonal, narrowed outwardly, 

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

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

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

 straight, cell 2nd A of inoderate width. Macrotrichiee on 

 the penultimate section of i^j, on R^j^z, Rz, and Rij^^. 



Abdon)inal 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 



