THE ANOPHELES OF KARWAR {NORTH KANARA). 333 



Palmate hairs : are on segments 2 to 7. On the posterior portion 

 of the thorax and on the first abdominal segment there is a hair in no 

 way resembling a palmate in structure, but apparently performing the 

 same function. A similar condition is found in A. Jamesi. James, in 

 his " Malaria in India," calls them palmates. 



3rd balancer : true to type. 



has the " breathing horns " of the usual type and 

 widely separated at the base. 



The resemblance of this species to a culex is astonishing ; it is very 



small, has "clear" wings, and habitually settles in 



the attitude attributed to a typical Culex. To add to 



the resemblance the abdominal segments are of a lighter colour at their 



junctions, and give an appearance of handing. 



Palpi : black, those of the male much clubbed. 



Proboscis : black in the female and considerably longer than the 

 palpi ; that of the male is even longer in proportion. 



Head : black, with a few white scales forming a small crest ; all the 

 forked scales are black, and are scanty in number. 



Thorax : light brown, nude, with only a few slender black hairs on 

 dorsum, 



Halteres : fuscous, with black knobs. 



Wings : with all the nervures black-scaled ; the scales small. 

 Transverse veins are alternate, 2nd opposite 4th, 3rd external. Fringe 

 is black. 



Abdomen : nude, except for a few black hairs. Segment margins 

 are lighter than the rest, and there is a brown dorsal line on the 1st, 3rd 

 or 4th segments of abdomen. 



Legs : black ; claws true to type. 



This is also a " clear " winged species. It was one 

 A. culkiformis, of ^ firgt Anophe]es bred in Karwar, but for long it 



was confused with A. Aitkeni. Only isolated speci- 

 mens were to be found until the latter end of the rains, when it 

 became abundant. The larvae were, as a rule, found in jungle pools. 

 On one occasion a largo number were found breeding in water contained 

 in a small hole in a tree-trunk. They continued to be fairly plentiful 

 up to the end of October. 



Although it is only by the closest examination that the imagines of 

 these two " clear " winged species can be differentiated, a study of 

 their life history shews them to be very distinct species. The great 



