THE BLOOD-SUCKING DIPTERA OF PALESTINE. 113 



which is infuscated ; tibiae drab-coloured or brownish drab, their extreme tips 

 infuscated ; tarsi Hght ochraceous-buff ; tibiae clothed with brownish or yellowish 

 hair, a series of long hairs on extensor surface of hind pair ; upper surface of hind 

 tarsi clothed with fairly long, pale hair. 



Near Jerisheh, 5 miles N.-E. of Jaffa, 29.iv.-8.v.l918 : type and one para- 

 type, in author's tent at night, on lining, above lighted lamp. 



The species described above is allied to the foregoing (C. tentorins, Austen), but, 

 in the $ sex at any rate, is distinguishable inter alia by the more swollen third joint 

 of the palpi, by the much darker colour of the dorsum of the thorax, by the wings 

 being much more hairy, and by the two pale spots on the costal border being only 

 faintly indicated and much less developed. 



Culicoides newsteadi, sp. n. (PI. iv, fig. 3). 



$. — Length (3 dried specimens), from anterior margin of thorax to posterior 

 extremity of abdomen, 1-2 mm.; length of wing, 1-3 mm., greatest breadth of 

 wing, 0-6 mm. 



Allied to the European C. pulicaris, L., and agreeing thereimth in wing-markings 

 in case of specimens in which pattern shown in PI. iv, fig. 3 is somewhat reduced, 

 but, in 5 sex at any rate, distinguishable inter alia by much smaller size, and by presence 

 of a pale band, sharply defined in case of fully-coloured specimens when viewed against 

 a dark background, at distal extremity as ivell as at base of hind tibiae. 



Head : vertex sparsely clothed with curved, yellowish hairs ; inner margins of 

 upper lobes of eyes in contact or separated by an exceedingly narrow interval ; 

 proboscis dark brown ; palpi sepia-coloured, clothed partly with brownish, partly 

 with yellowish hair, third segment strongly swollen ; antennae light sepia-coloured 

 or light mummy-brown, third to tenth segments inclusive generally paler (cream- 

 coloured), hair on antennae yellowish. Thorax : dorsum clothed with shining 

 ochraceous-buff hairs, ground-colour (in dried specimens) olive-grey, with a mummy- 

 brown area on each side anteriorly, or light greyish olive, with anteriorly a narrow, 

 sepia-coloured, longitudinal streak in middle line, becoming obsolete towards hind 

 margin, and on each side, between it and lateral border, a broader and longer, curved, 

 longitudinal stripe of same colour ; sctUelliim agreeing in ground-colour with 

 remainder of dorsum, and bearing two central and two lateral bristles, as also three 

 short hairs between each central and corresponding lateral bristle.' Abdomen 

 sparsely clothed with pale (cream- or cream-buff-coloured) hairs. Wings : in speci- 

 mens with fully-developed wing-markings, latter are as shown in PI. iv, fig. 3, the 

 three dark blotches on costal border dark mouse-grey and very conspicuous, remaining 

 dark markings mouse-grey ; in many specimens, however, mouse-grey markings 

 between costal border and hind margin are much reduced in extent, taking form of 

 partly discontinuous and isolated spots and flecks ; greater part of distal half of 

 wing-surface, as well as of hind border, fairly thickly clothed with decumbent hairs. 

 Halteres : stalks cream-coloured, knobs ivory-yellow. Legs sepia-coloured or light 

 sepia-coloured, tarsi, middle and hind knees, and a band at each extremity of hind 

 tibiae paler (pinkish-buff or pale pinkish-buff — in well-coloured specimens pale bands 

 on hind tibiae are cinnamon-buff) ; hair on legs pale, hind tibiae on outer surface 

 with a row of long hairs. 



Near Jerisheh, 5 miles N.-E. of Jaffa, 26.iv.-8.v.l918 : type and 5 para-types, 

 in author's tent at night, on lining, above lighted lamp : dedicated, as a trifling token 

 of sincere regard, to Robert Newstead, F.R.S., Button Memorial Professor of 

 Entomology, Liverpool School of Tropical Medicine. Although not actually taken 

 in flagrante delicto, there can be no doubt that this species is a blood-sucker, since 

 in the case of the type fresh blood was observed in the abdomen at the time of capture. 



