350 On neio or litth-knoicn Tipulidre. 



Hulotype, (J, Salisbury, ^Mashonalaud, March 1905 (G. A. 

 K. Marshall). 



Type iu the collection of the British Museum. 



Ti/mla inas/iona is very closely allitid to 7\ sorur, 

 Wiedeuiaunj but may be distinguished by the dark brown 

 aiitenual flagellum, the clear grey coloration of the head and 

 thorax, and other characters. 



Nephrotoina mossambica, sp. n. 



Close to N. unic'nyulata, Alexander ; prreacutal stripes 

 very broad, confluent or nearly so ; le^s brownish black, the 

 femoral bases paler; wings with the apical cells sparsely 

 pubescent, Rs short and straight; abdominal tergites one to 

 five with a black median mark, segments six to eight ringed 

 with black. 



Male. — Length about 13 mm. ; wing 15 mm. 



Female. — Length about 18 mm. ; wing 16 mm. 



Frontal prolongation of the head dull yellow ; uasus long 

 and slender. Palpi pale brown. A.nteniial scape orange ; 

 flagellum black ; antenme moderately elongate, if bent 

 backward, extending about to the base of the abdomen. 

 Head orange, the occipital mark elongate, dull brown. 



Pronotum light yellow. Mesonotal pnescutum pale 

 whitish yellow with three very broad black stripes that are 

 almost confluent, the humeral angles of the ground-colour ; 

 scutum black with only a narrow yellowish median line; 

 scutellum brownish testaceous ; postnotum yellow with 

 about the posterior two-fiftlis l)rownisli testaceous. I'lenra 

 whitish, indistinctly marked with yellowish. Ilalteres brown, 

 the knobs yellowish. Legs with the coxae and trochanters 

 pale yellowish ; femora dark brownish black with the base 

 paler, more brownish, this narrowest on the fore legs, more 

 extensive on the hind legs ; remaind(;r of the legs dark 

 brownish black, less intense on the basal half of the tibi;e. 

 Wings with a strong brownish -yellow tinge, the wing-apex 

 passing into brown ; cell Sc yellowish brown ; stigma dark 

 brown ; an indistinct brown seam along the cord extending 

 to cell \st Mj ; veins dark brown. Apices of cells R^, Ji^, 

 and .li] sparsely pubescent. Venation as in N. unicirif/ulata, 

 but Hs shorter and straighter, almost in alignment with the 

 deflection of Rt^i ; cell Mi more broadly sessile. 



Abdominal tergites orange-yellow, the first tergite largely 

 black ; tergite two with a linear black mark on the basal 

 half and a similar mark on the apical half ; segments three 



