Genus Heptaphlehomyia. 531 



Sub-Family HEPTAPHLEBOMYINAE. 



Theobald. 



Genus HEPTAPHLEBOMYIA. Theobald. 



Mono. Culicid. III., p. 336 (1903); Entomologist, Vol. XXXIX., p. 15G 

 (1905) ; Gen. Ins. Fam. Culicid., p. 41 (1905), Theobald. 



This genus was described in Volume III. of this work from 

 a single female. Since which time much fresh material has been 

 received, and we now have at least four well-marked species, 

 three described by Yentrillon from Madagascar and one by myself. 



So far the genus is only known in Africa and Madagascar. 



M. Ventrillon's species and remarks are of particular interest, 

 and his descriptions which are here reproduced are drawn up 

 most accurately. 



The strangeness of the venation might be thought sufficient to 

 exclude them from the Culicidae altogether, but I prefer at present 

 to leave them as an aberrant group in the family. 



Characters of the genus. 



Head clothed with narrow-curved scales and upright forked- 

 scales, except at the sides where they are small and spatulate. 



Palpi of the female small but prominent, in the male long, 

 acuminate, the last two segments hairy. 



Thorax clothed with narrow-curved scales and also the 

 scutellum and prothoracic lobes ; pleurae in the female with 

 patches of flat scales, which end in a sharp point, in the male 

 rounded apically. 



Wings with a distinct seventh-scaled long vein, which is not 

 as a rule scaled for its whole length. 



Scales of the wing broader than in Culex, especially at the 

 apices of the veins, including the branches of the fork-cells. 



Heptaphlebomyia simplex. Theobald (1903). 



Mono. Culicid. III., p. 337 (1903); The Entomologist, Vol. XXXIX., 



p. 157 (1905). 



Head deep brown, with greyish scales ; palpi of 9 thin, 

 black and white scaled, of the male thin, black ; proboscis black, 

 unhanded. 



2 m 2 



