The Crane-flies of South Africa (Dipfera, Tipulidae}. 171 



TlPULA CAFFRA, Sp. 11. 



Auteunae with the flagellar segments uuifurmly elongate-cylin- 

 drical ; coloration blackish with a yellowish pollen ; wings brownish- 

 grey, the stigma and costal cell yellowish-brown ; nmle hypopygium 

 of simple structure, the ninth tergite extensive, profoundly incised 

 medially by a V-shaped notch that extends about to the eighth tergite. 



Male. Length about 10 mm. ; wing 1O6 mm. 



Frontal prolongation of the head narrowed basally, dark brownish - 

 black with a sparse greyish bloom ; uasus not distinct, but the whole 

 apex of the prolongation with an abundance of stout black bristles; 

 palpi short, black. Antennae black with sparse tiny grey hairs ; 

 flagellar segments elongate-cylindrical, even more narrowed toward 

 the tip of the organ. Head with the frontal tubercle not very 

 prominent ; head black with a heavy greyish-golden pollen ; a blackish 

 area on either side of the median line. 



Thoracic praescutum dark with a heavy yellowish pollen and with 

 four brown stripes, the median pair confluent in front ; scutellum dull 

 yellowish ; postuotum yellow, darkened behind. Pleura with the 

 mesopleurites dark brown with a greyish pruiuosity, the metapleurites 

 light brown, conspicuously and abruptly lighter coloured than the 

 anterior sclerites. Halteres brownish-yellow, the knobs darker. Legs 

 with the anterior and middle coxae dark brown, the posterior coxae 

 brownish-yellow ; trochanters brownish-yellow ; femora light yellowish- 

 brown, the tips broadly dark brown ; tibiae brown, darker at the 

 tips ; tarsi dark brown. Wings brownish-grey, the costal cell and 

 stigma light yellowish-brown ; a yellowish tinge along CH. ; a vitreous 

 band before the cord crossing cell 1st M. 2 and a smaller vitreous spot 

 beyond the stigma ; veins dark brown, paler in the vitreous areas. 

 Venation (Plate XII, tig. 33), Rs rather elongate, strongly angulated 

 at its origin ; second anal vein short and straight. 



Abdomen with the basal segment light reddish -yellow ; remaining 

 segments black with a sparse greyish bloom. Male hypopygium of 

 simple structure. Ninth tergite dark brown, extensive, profoundly 

 incised medially by a V-shaped notch, this cut extending about to the 

 eighth segment, so that the ninth tergite, viewed from above, is 

 completely divided into two lobes, each lobe triangular, the apex sub- 

 acute. Ninth sterno-pleurite smaller than the tergite, dark brown, 

 the pleural region yellowish ; appendages yellow, simple in structure ; 

 pleural suture deep, black and almost straight ; sternal region 

 profoundly incised on the mid-ventral line, the adjacent edges not 

 contiguous. 



