338 F. W. EDWARDS. 



also other pale areas, the most noticeable of which are in the middle of the third vein 

 and towards the base of the sixth. The fifth vein is entirely dark, except for a part 

 of its upper branch. The wing-scales are narrow but rather short. The proboscis 

 has a well-defined pale ring about the middle in both sexes. The male palpi have 

 pale rings at the bases of the last two joints and a very narrow one at the tip of the 

 last joint. The side-pieces of the hypopygium are only moderately hairy ; the lobe 

 with the usual five modified bristles (the apical one unusually flattened and outwardly 

 directed) and leaf-hke plate ; clasper sickle-shaped, gently tapering, with well- 

 marked terminal claw ; tenth sternites with the basal arm quite long, though shorter 

 than the stemites ; second division of mesosome split into two or three teeth. 



The larva has been partly described and figured by Martini, but he has omitted 

 to notice an important point, the position of the pair of subapical antennal bristles 

 only a little more than mid-way between the tuft and the apex of the shaft. It is 

 also noteworthy that the pale colour of the antenna extends some way beyond the 

 tuft, almost to the subapical bristles. The 4 or 5 pairs of. larger siphonal tufts are 

 at least twice as long as the diameter of the tube. The larva is remarkably like that 

 of C. hortensis, differing in antennal characters and in the rather greater number 

 of siphonal tufts ; the latter point is probably not of much importance, as the 

 number and also the position of the tufts is certainly variable in many species of the 

 genus. 



The most interesting fact about this species is its occurrence in association with 

 Anopheles super p ictus, to which it bears a considerable resemblance in wing-markings. 

 Whether we have a genuine case of mimicry, and if so what advantage the species 

 could gain by it, I will not attempt to judge, but it is perhaps an even more remarkable 

 fact that the allied C. mimulus, which differs in having a dark third vein, occurs with 

 Anopheles culicifacies or A . minimus, which differ in the same way from A . superpictus. 



Distribution.— Monnta.mons regions in the eastern Mediterranean region. Italy 

 {Noe) ; Macedonia {Martini, Waterston) ; Palestine {Cropper) ; Cyprus {Miss 

 Bate) . 



The species was till recently supposed to have a much more extended distribution, 

 but I have recently shown that the form inhabiting Ceylon and Malaya differs slightly 

 both in wing markings and hypopygial details, and have therefore treated it as 

 a distinct species, C. mimuhts. There are good larval differences between C. minie- 

 ticus and C. mimulus, the latter having few and short siphonal tufts, and the subapical 

 antennal bristles close to the tip. A second form, which is probably equalh^ distinct, 

 is found in Hong Kong, Formosa, and South India (Ootacamund, recorded by me 

 recently as C. mimeticus). This differs from the true mimeticus in the much broader 

 pale tip to the longer male palpi, the absence (apparently not quite constantly) of 

 the basal arm of the tenth stemites, and perhaps in other details. I have seen only 

 females from North India, and cannot say whether they belong to this second Oriental 

 form or to the true mimeticus. The Japanese form must obviously be treated as 

 another quite distinct species. 



11. Culex orientalis, sp. n. 



Differs from C. mimeticus as follows : — Wing-scales somewhat broader and 

 distinctly longer, the wings therefore appearing more densely scaled. Cu^ (lower 

 branch of fifth vein) with a pale area at its tip, most noticeable in the female ; 

 another pale area (more or less developed) before the fork. Male proboscis with 

 numerous pale scales on the apical portion beyond the ring, sometimes the whole 

 apical portion is pale. Hypopygium : side-pieces large and stout, densely hairy, 

 especially rormd the somewhat produced tip and near the lobe ; lobe with eight 

 somewhat flattened appendages, all much alike, with rounded, not hooked tips, 

 arid placed almost in a continuous row ; besides these there are numerous accompany- 

 ing long hairs ; leaf-hke plate and its accompanying bristle present as usual. Clasper 



