196 [August, 



DESCRIPTIONS OF FOUR NEW SPECIES OF ANOPHELES 

 FROM INDIA. 



BY LIEUT.-COL. G. M. GILES, M.B., F.R.O.S., I. M.S., Retd. 



On comparino- the collection brought home, with the enormous 

 mass of material in the British Museum, recently arranged and 

 described by Mr. Theobald, we found the four additional new forms 

 described below. 



One of them is specialiy interesting fo'- the way in which it 

 mimielvs Culex, as not only does the insect closely resemble the 

 common grey Indian gnat, C. fatigans, Wied., but it also copies the 

 attitude of the rival genus when resting, the females in especial, sitting 

 "humped up " ni exactly the same way as those of the type genus of 

 the family. So much is this the case, that on arriving at night at the 

 rest-house where I first met with the species, I was completely " taken 

 in " by the fraud, and felt quite safe in dispensing with mosquito 

 curtains. On this account the species has been named An. culici- 

 facies. Two of the others come from the Bernrs, on the Dakhan 

 Plateau, and the third nppears to be a purely hill species liailing from 

 the Nehilgerri Hills. Although equalled by some American examples 

 of An. maculipennis, it is certainly the largest of our Indian forms, 

 and has accordingly been named '' r/iffos.'" 



Anopheles gioas, sp. n. 



Wing witli the costa black, intciTiipted by a comparatively small fulvous spot 

 opposite the basal half of the ant. fork-stem ; in addition to which there is a large 

 apical spot, and the base of the wing is generally pale, except the actual base of the 

 costa, which has here a black length cut in two by a minute white dot, so that the 

 general appearance is that of two large black triangular areas, with their bases on 

 the costa, the inner part of the wing being mainly pale, with but few black vein- 

 spots. The internal fringe is pale at the apex and generally, towards the base, and 

 the intervening dark portion shows pale patches at the longitudinal junctions. In 

 the (? the whole wing is much lighter, there is an additional light spot near the 

 apex, and the entire fringe is yellow. Thorax of a deep chocolate-brown ground 

 colour, the dorsum covered with a velvetty, greyish bloom, so arranged as to leave 

 bare a median and a pair of lateral darker lines. Abdomen dark brown, with some 

 lighter hairs, and showing on the terga some lighter tomentum, like that on the 

 thorax. 



(^ . — General coloration deep chocolate throughout, the head with the vertex 

 and frontal tuft yellowish. Antenna two-thirds the length of the proboscis, which 

 is distinctly longer than the quite unhanded palpi. Halteres with pale stems and 

 dark knobs. 



g. — Altogether lighter, the palpi golden-brown, with dense terminal tufts of 

 hairs to the joints, about equalling the proboscis in length. Most of the upper 



