794 



THE DIPTERA 



3. Legs unbanded: — 



{a) Apex of palpi white and ringed. Three pale palpal bands. 



(a) Third long vein mostly yellow— /is/owi Liston. 



(b) Third long vein dark. 



(1) Several fringe-spots — leptomeres Theobald. 



(2) Two fringe-spots — culicifacies Giles. 



(3) No fringe spots — rhodesiensis Theobald. 

 (6) Apex of palpi white only- — -nili Theobald. 



(c) Apex of palpi black. 



(1) Black apex narrow — turkhudi Liston. 



(2) Black apex broad — hispaniola Theobald. 



4. Legs with spots only at joints. Palpi with three bands; apex black 



— azriki Patton. 



B. Proboscis banded: — 



I. Legs unspotted — albirostris Theobald. 



II. Legs spotted — thorntoni Ludlow. 



Neomyzomyia Theobald, 1912. 



This genus includes only one species, Neomyzomyia elegans James, 1903. It 

 is found in India. 



Pyretophorus Blanchard, 1902. 



The important species is Pyretophorus costalis, the spreader of malaria in 

 West Africa and Mauritius. 



Pyretophorus. 



A. Legs unbanded :- — • 



I. Palpi with three pale bands; apex black — nigrifasciatus Theobald. 

 II. Palpi with three pale bands; apex white: — 



{a) Wings with four large and two small black costal spots; mid 



cross- vein very long — nursei Theobald. 

 (&) Wings with four large black spots; mid cross-vein normal — 



minimus Theobald, 

 (c) Wings with five large black costal spots : — 



(1) First fork cell much longer than the second posterior — 



sergenti Theobald. 



(2) First fork cell about as long as the second cell — palesti- 



nensis Theobald. 



B. Legs banded: — 



I. Legs with apical banding. Hind-legs only banded. Palpi, black 

 apex, and three pale bands, 

 (a) Three dark lines on post-scutellum — myzomyfacies Theobald. 

 (6) Two dark lines on post-scutellum- — chaudoyei Theobald. 

 II. All legs with apical pale bands. Palpi with three white bands. 



{a) Wings with four black costal spots; fringe unspotted — -super- 

 pictus Grassi. 



(6) Wings with four large and two small costal spots; fringe spotted. 



(a) Apical palpal band broad; other two small — jeyporensis 



Theobald. 



(b) Apical and median palpal bands broad — austeni Theo- 



bald. 



(c) Thoracic scales creamy — pitchfordi Power. 



III. Fore and hind legs with apical pale bands. 



Four white palpal bands — cinereus Theobald. 



C. Legs spotted and banded : — 



I. Last three hind tarsals all white. 



Thorax golden scaled — aureosquamiger Theobald. 



II. Last hind tarsal not white : — 



[a] Femora and tibia? spotted. Tarsal bands apical. Three palpal 

 bands. 



