NEW CULICINE LARVAE FROM THE GOLD COAST. 



15 



This larva may be distinguished from the other known larvae belonging to small 

 species of this genus by its double row of spines in the comb (Bull. Ent. Res. iii 

 p. 383). 



Pupa. — The pupae of this species do not appear to have the outer third of the 

 respiratory tubes light-coloured (Bull. Ent. Res. iii, p. 384), but only the tips. 



Breeding place. — The larvae were found in marshy ground along the edge of the 

 stream at Sunyani, together with the larvae of M. plumosa and those of Uranotaenia 

 alhoabdominalis. 



Fig. 12. Mimomyia hispida, Theo. 



Uranotaenia annulata, Theo. (fig. 13).''' 



The larva in life measures about 6 mm. being nearly twice as long as the larva of 

 U. alhoahdomitialis. It is of a light grey colour with very dark head and siphon. 



*In my paper on African Mosquito Larvae (Bull. Ent. Res. iii, p. 378) I briefly noted a larva 

 which had been received as that of Stegomyia sugens or Uranotaenia nigripes, and appeared 

 peculiar in having a lateral chitiuous plate in addition to the comb on the eighth segment. 

 Mr. Knab shortly afterwards wrote suggesting that this larva might be a Uranotaenia, as 

 the possession of a chitinous plate with the comb at the edge was one of the characters of 

 the genus, a fact of which I was not then aware. Dr. Ingram's interesting discovery of the 

 larva of U. annulata proves that the Sierra Leone larva must indeed be that of Z7. nigripes, 

 as the two are very similar and agi'ee in having rounded heads and slender frontal hairs. 

 The chief points of difference between U. nigripes and U. annulata are as follows : 

 the two anterior pairs of frontal hairs are placed far forward, the outer three branched, 

 the inner simple and much closer together than in U. annulata ; the comb -teeth are about 

 14 in number and sharply pointed ; the siphon is narrower towards the tip ; and the anal 

 papillae are nearly three times the length of the anal segment. 



It is interesting to note that the group Pseudoficalbia, to which both these species belong, 

 can apparently be defined on the characters of the larval head as weU as on the scale 

 characters of the adults. — r. W. Edwards. 



