S2 TiiK .MdSi^ri'roKs uv icgvpi', riiK si dan and abvssinia 



Goiius UuANOTiENiA, Arril)iilziiga. 

 Dipt. Aryvntiiiii, p. (i.". (1899); Mono. Culicid. IL, p. 241 (IIM»1) 



UrarKjtceula balfoiwl, u. sp. 

 (Plate VI.,' Fig. 6) 



Head ■\virh a l)r()ii(l hlai'k incdiau band, j)ale 1)Ur: un oacli side. Thorjix 

 l)i-(i\vn with pale blue pro-thoracic lobes and a jjale blue area in front (jf the 

 roots of the \vings. Abdomen brown, unhanded. Legs brown unl^anded. 

 Wings with brown scales, except a short row at the base of the fiftli long vein. 



Female. Head black clothed in tlie middle with fiat black scales forminir a 

 broad median area, sides clothed with flat pale blue scales; viewed in certain 

 lights tlie liack of the dark area of tlie liead reflects deep rich blue colours ; 

 four prominent curved black bristles in front which project medianaUy and some 

 short black ones between ; antenna^ deep brown with paler nodes, basal joint 

 pale reddish-brown ; clypeus pale reddish-brown ; palpi blai'k ; proboscis black, 

 nearly as long as the whole body. 



Mesothorax brown with smaU narrow-curved brown scales, a short blue 

 line on eacli side before the root of the wings ; pr(^)thoracic lobes clothed with 

 fiat pale blue scales ; scutellum brown, testaceous along tlie edge, lateral lobes 

 with small flat black scales (mid lobe rubbed) ; four posterior border-bristles to 

 the mid lobe ; metanotum deep brown ; pleura' bro\vn, with a small median 

 patcli of pale blue scales. 



Abdomen deep brown with rich deep brown scales and pale golden border- 

 bristles, on the sides of the last three or four apical segments are traces of basal 

 brown scales ; venter pale ochreous with brown border-bristles ; legs deep brown, 

 bases testaceous, venter of femora pale ; ungues small equal, and simple ; wings Avith 

 brown scales except at the base of the fifth long A'ein ^vhere there is a row of broad 

 fiat ■\diite scales ; costa and first long vein with very dark scales, long lanceolate and 

 prominent lateral vein-scales on the second and third veins and a few on the fork of 

 the fourth ; the second long vein lying very close to the first, the upper branch 

 of the small first submarginal cell being particularly closely applied ; the stem 

 of the first submarginal cell about two and a half times as long as the cell, 

 that of the first postei'ior slightly longer ; posterior cross-vein twice the length of 

 the mid and about its own length distant from it ; mid cross-vein much shorter than 

 the supernumerary ; the scales on the fifth (except base) are dark and also on the 

 sixth except at the apex which is nude in the specimen examined; halteres Avith 

 testaceous stem and l)lack knolj. 



LetKjtIi. 2 mm. 



Habitat. Pibor. 



Observations. Described from a nearly perfect female, the scutellum alone 

 being damaged. Dr. Balfour states that it is " very common on the Pibor, and 

 very annoying in the evening." It is a very small sjjecies that may easily get 

 through ordinary mosquito netting. 



