MOSQUITOS OF THE PALAEAKCTIC REGION. 



343 



of resemblance being in the length of the siphon. The accompanying figiu-es have 

 been prepared from isolated skins sent by Capt. Barraud, the adults issuing from 

 which I have examined. The following is Capt. Barraud's description :— 



" Antenna hght in colour except towards base and tip. Shaft clothed with 

 spicules. Antennal tuft of about 24 subplumose hairs arising at about three-quarters 

 from the base. Mid frontal hair tufts of subplumose hairs ; ante-antennal tuft 

 of 8 hairs ; outer median tuft of 2, inner median of 3. Small lateral tuft above eye 

 of about 4 very small hairs. Mental plate with 7 teeth on either side of the central 

 one, the outermost tooth some distance below the others. 



' ' Siphon about seven times as long as the width at base. Pecten of from 1 1-14 teeth; 

 teeth slightly curved, with three secondary spines on one side ; last few teeth slightly 



Fig. !7. Culex perexiguus, Theo., head of larva. 



more detached than the remainder. Hair tufts on siphon represented by about four 

 pairs of very short and fine hairs (towards tip usually single) . Tufts on eighth segment 

 of from 4 to 6 subplumose hairs. Comb of small teeth in triangular patch. Anal 

 gills about the length of the anal segment, the dorsal pair rather longer than the 

 ventral. Two or three hairs in the tuft on the dorsal edge of the anal segment. Brush 

 well developed, about 12 tufts each with about 6 hairs." 



Since it is impossible to consider two such different larvae as belonging to the 

 same species, there is no alternative but to revive Theobald's name perexiguus for 

 the Mediterranean form. 



DistyibtUion. — Palestine {Cropper, Barraud). Since it is impossible to separate 

 the adults, the further distribution of C. perexiguus as distinguished from C. 

 miivittat'us cannot be given, but it seems reasonable to assume that the form is the 

 same throughout the Mediterranean region. From an exaiTiination of adults and 

 from Storey's remarks on the larva it is obvious that this is the species he has recorded 



