18 DIPTERA 



Palpi five-jointed, the first very small. Antennse cylindrical, per- 

 foliate, inserted under the eyes, nine-jointed, the two first separated 

 from the others, the remainder very short. Eyes hairy in the male, 

 naked and small in the female. Abdomen of male terminated by two 

 hooks and two tubercles. Legs hairy; anterior thighs short, swollen 

 in the female ; the posterior elongated in the male ; tibiae grooved ; 

 the anterior short, swollen, terminated by a long and a short spine ; 

 the posterior sAvollen in the male ; joints of the tarsi elongated ; three 

 cushions at the extremity. Two basal cells in the wings. 



B. NiGRosTiGMA. Walker, I.e., p. 121 (1848) . 



Male. Body black, shining, thinly clothed with black hairs ; 

 antennae black ; eyes dark red ; legs black ; wings clear-brown ; 

 brands, fore-border, and adjoining veins black ; the other veins 

 tawny; poisers dull brown, with piceous knobs. 



Female. Thorax red, with a black lobe on each side in front ; 

 hips and thighs red. Length 3— 3i lines. 



New Zealand (Dr. Sinclair) . 



B. RUFicoxis. Macquart, Dipt. Exot., Supp. iv., p. 17, pi. 1, /. 10 

 (1850). 



Female. Proboscis, palpi, and antennae black. Front fulvous. 

 Thorax and scutellum entirely fulvous. Abdomen fulvous. Legs 

 black, the coxae red. Wings fuscous, the transverse vein which 

 closes the posterior basal cell^ closely approaching the base of the 

 second posterior cell. 



Tasmania (Macquart) ; New Zealand (Novara Exp.) . 



aenus-DILOPHUS. 

 Macquart. 



Like Bibio, but the femora spinose, and the prothorax pectinated. 

 D. sPECTABiLis. Noiviki, I.e., p. 10 (1875). 



Female. Black ; coxae and femora rufous ; mesothorax variegated 

 with red and black ; wings rather smoky, the stigma oblong, black. 



Length, 4i lines ; wings, 44 lines. 



New Zealand (Edwards). 



Genus-SIMULIA. 

 Latreille. 



Fourth joint of the palpi rather elongated and slender. Antennae 

 cylindrical, eleven-jointed, the two first of which are separated from 



* Macquart calls this the intemp-raedian cell. 



