178 



Genus 4. Desvoidea = Armtgeres. — Head, flat 

 scales, a few upright-forked. Differs from Stego- 

 myia, (i) is longer, with unhanded tarsi and 

 abdomen. $ palpi, untufted. 9 palpi, very pointed 

 and provided with bristles only. Species, two. 



Genus 5. Stegomyia. — Head completely 

 clothed with broad flat scales (Fig. 49) and a 

 few upright forked. Palpi four-jointed in the 9 , 

 five-jointed in the $ . Scutellar scales flat, mostly 

 black and white mosquitoes with banded legs and 

 abdomen. Species, twenty. 





(oteral 



eoomy/a . 





Fig. 49. Head scales of Stegomyia (left) and Culex (right) 



S. fasciata. — Transmits yellow fever. 



1. Tarsi basally banded white. 



2. Proboscis unhanded. 



3. Thorax. A pure white broad curved 



band on each side, and two median 

 . pale parallel lines. 



4. Ungues of ? toothed. 



Genus 6. Theobaldia. — Palpi in $ clubbed as 

 in the]Anopheltnae. Palpi in ? five-jointed, apical 

 joint mammilliform, wings in both sexes densely 



