2 Dr. 0. P. Alexander on African Crane-Jlies 



Family Tipulidse. 



Subfamily Limnobiinm. 



Tribe Limnobiini. 



Genus Dicranomyia, Stephens. 



Dicranomyia scutellum-nigrum, sp. n. 



Head dark ; mesonotal prsescutum and postnotum yellow- 

 isli, the scutal lobes and scutellum black ; pleura yellow with 

 a transverse dark brown stripe on the mesepisteruum ; wiugs 

 long and narrow, yellow^ with about four dark brown cross- 

 bands, the second at the level of the sector, the third at the 

 cord, the last at the wing-tip ; Sc long, cell 1st M^ closed. 



Female. — Length about 8'5 mm.; wing about 9 mm.; 

 middle leg, femur^ 8"5 mm. ; tibia, 89 mm. 



Rostrum and palpi brownish yellow, the latter a little the 

 darker, short. Antennae with the scapal segments obscure 

 yellowish, the second segment dark brown at the tip ; 

 flagellum rather elongate, dark brown, each segment with a 

 very long, secund verticil. Head dark brown. 



Mesonotal prsescutum shiny yellowish red without darker 

 markings ; scutal lobes brownish black, the median area and 

 base of the scutellum obscure yellow ; remainder of the 

 scutellum blackish; postnotum yellowish. Pleura shiny 

 yellowish with a single, rather narrow, transverse, dark 

 brown stripe on the mesepisteruum, continued ventrad on to 

 the dorsal margin of the mesosternum, this line extending 

 from the concolorous scutal lobes, passing immediately before 

 the wing-root. Halteres yellow, the knobs dark brown. 

 Legs with the coxse and trochanters yellow ; femora brown, 

 pale at the base, passing into dark brown at the apex ; tibiae 

 brown, the tips dark brown ; tarsi dark brown; legs rela- 

 tively long and slender ; claws broken. Wings long and 

 relatively narrow, light yellowish, with about four brown 

 cross-bands ; these markings are dark brown in the costal 

 region but fade into grey in the anal cells ; these bands are 

 distributed as follows : the first band lies just beyond the 

 yellowish wing-base and completely traverses the wing, 

 occupying the middle third of cell 2nd A ; the second band 

 occupies the level of the origin of Rs, appearing as a large, 

 dark brown area at this origin, continued caudad across the 

 wing as a much paler, grey cloud ; the third band occupies 

 the cord and completely traverses the wing, paler, in the 

 caudal cells ; a large rouuded brown spot at the tip of Ry ; 



