90 SPOLIA ZEYLANICA. 



A NEW SPECIES OF BLOOD-SUCKING FLY (SIMULIUM) 

 FROM CEYLON. 



By E. Brunetti. 



^VTO species of Simulium appears to have been recorded from 

 ^^ Ceylon, so I have pleasure in offering a description of one 

 recently taken there by Mr. E. E. Green and Mr. F. H. Gravely. 



Simulium striatum, sp. no v. 



? Ceylon. Long. 2 mm. 



Head. — Frons shining leaden gray, with a few pale hairs, face of 

 similar colour. Back of head light gray, with sparse short pale hairs. 

 Antennae blackish, with hght gray pubescence, the basal segments 

 distinctly yellowish for some little distance, the whole antemiae 

 appearing in certain lights tinged with reddish-yellow. Proboscis 

 shining reddish-yellow, with large oval gray hairy labella placed 

 at the base. Palpi long, slender, blackish, the first joint not much 

 thickened. 



Thorax. — Dorsum ash-gray, with scattered short bright yellow 

 hairs, and three moderately narrow black stripes beginning just 

 behind the anterior margin, but not continued to the posterior one. 

 Viewed from a low angle in front the dorsum appears blackish, 

 with four ash-gray stripes, of which the two outer ones are emarginate 

 in the middle on their outer edges. Sides of thorax blackish-gray, 

 with ash-gray reflections on the pleurae. 



Abdomen. — Dull black (apparently denuded of pubescence). 



Legs. — Coxae and femora yellowish or brownish-yellow, the latter 

 more or less brown towards the tips, especially the posterior legs. 

 Fore tibiae detrk brown, posterior tibiae pale yellowish on basal half, 

 brownish or dark brown on apical half, the proportions being 

 variable. Fore tarsi black, the metatarsus, second and third joints 

 large ; middle tarsi brownish-yellow at the base, the joints very 

 narroAvly black tipped, the last two or three joints wholly black ; 

 no undue dilatation of any of the joints. Hind metatarsus con- 

 siderably incrassated, pale whitish -yellow, with black tip ; the next 

 joint pale, narrowly black tipped ; the remainder black ; the joints, 

 except the apical one, dilated. 



Wiiigs. — Colourless, venation normal ; halteres lemon-yellow. 



