154 A NEW GENUS AND TWO NEW SPECIES OF CULICID.E FBOM THE SUDAN 



type, others spatulate, lateral linear ones on the apical areas of the veins ; fork-cells 

 short, the first submarginal 

 longer and n,arrower than the 

 second posterior, its base 

 slightly nearer the apex of 

 the wing, its stem nearly two- 

 thirds the length of the cell, —f1ic,ro„iyin a/rica,,a,>^ <.p. i c^a^^v 



stem of the second posterior 



also about two-thirds the length of tlie cell, posterior cross-vein nearly twice its own length 



distant from the mid cross-vein. 



Length : 3"5 to 4 mm. 



Habitat : Nasser, Sobat Elver. 



Time of capture : July, 1907. 



Observations: Described from three $'s and three ,?'s, three specimens being 

 nearly perfect. Collected by Dr. Wenyon. A very marked species clearly coming in a 

 new genus. It bears some resemblance, however, to M(iiiso}iia (.'') nigra, Theob. [vide 

 Second Report, p. 80, 190G), which was taken on the Blue Nile. 



It differs, however, in (i) the palpi of the $ not having two white bands ; (ii) the 

 abdomen not having irregular apical white bands ; (iii) the tarsals of the first and second 

 pairs of legs only having three, not four, bands ; (iv) the ungues of fore and mid legs 

 being uniserrate and not simple as in M. nigra. There are also (v) differences in wing 

 venation and the wing scales, the sixth vein not having large heart-shaped scales. 



Types in collection of the writer. 



Cidex sndanensis, nov. sp. 



(Plate XI.) 



'^"'''■*' Thorax tessellated with golden-brown and deep bi'own, showing traces of linear 



arrangement. Proboscis unhanded. Abdomen black, with broad basal creamy-white 

 bands, biit two segments with yellow apical bands ; very hairy in the male. Legs brown, 

 with narrow basal pale bands. Wings normal. 



ij! Head black, with pale narrow curved scales, pale upright forked scales in the 

 middle, dark ones at the sides, flat lateral scales mostly dark, some creamy ones bordering 

 the eyes and at the extreme sides, median chaitse golden, lateral ones black ; proboscis, 

 palpi and antennae brown, the palpi with dull creamy apical scales. Thorax black, clothed 

 with pale golden brown narrow-curved scales arranged somewhat in lines, the spaces 

 between with scanty scales, thus giving a darker lined appearance, the scales becoming 

 pale, almost creamy before the scutellum, which is also clothed with narrow-curved pale 

 scales ; chsetse brown, with golden-brown apical reflections ; prothoracic lobes dark, with 

 narrow curved pale scales ; metanotum brown ; pleura; dark, with patches of flat white 

 scales. 



Abdomen black, with prominent creamy-white basal bands, the last two segments 

 with apical yellow bands as well ; posterior border-bristles j)ale golden ; genital lobes black 

 and long, hairy. 



Legs dark brown, femora and tibiae with some scattered pale scales and pale golden 

 hairs, metatarsi and first two tarsals of fore legs, first three of the mid and all the hind 

 with narrow pale basal bands ; knee spots yellow ; fore and mid ungues equal and 

 uniserrate, hind '? 



