REPORT OF THE ENTOMOIvOCirAL SECTION 99 



assistance in their power, and I have benefited greatly from their advice. I am similarly 

 indebted to my colleague, Dr. W. Beam. My thanks are due to Mr. F. V. Theobald, 

 Vice-Principal of the South-Eastern Agricultural College, Wye, Kent, for the determination 

 of mosquitoes ; to Dr. G. H. F. Nuttall and Mr. C. Warburton for the determination of 

 ticks; and to Mr. E. E. Austen, of the British Museum (Nat. Hist.), for the determination 

 of blood-sucking flies and for help in connection with the drawdngs illustrating this report. 

 Others to whom I would express my gratitude are Mr. G. A. K. Marshall, Scientific 

 Secretary to the Entomological Research Committee (Trop. Africa), Sir G. F. Hampson 

 and Mr. G. A. Boulenger of the British Museum (Nat. Hist.). 



The names of those in the Sudan who have rendered valuable aid by collecting and 

 forwarding specimens are far too numerous to give here, but I cannot conclude without 

 mentioning in this respect Captain Hills, A.S.C., Mr. Landon, Sudan Irrigation Service, 

 Major Percival, Captains Mackenzie, Cummins, Drew and Anderson, R.A.M.C., and 

 Mr. H. A. MacMichael, Junior Inspector, Kordofan. To these, and to many others, 

 I would here express my sincere gratitude. 



Anim.\ls In.iurious to Man and Animals 



Mosquitoes 



Gulicidse 



Among the mosquitoes collected during three months spent on the White Nile in 1909 

 were representatives of five new species and a new sub-species. One of the new species 

 has been constituted the type of a new genus. Descriptions of all these appeared in 

 Volume V. of Mr. F. V. Theobald's Monograph of the Culicidie of the World, published 

 by the British Museum (Nat. Hist.), but for the convenience of those in the Sudan who 

 do not possess a copy of that work, these descriptions are given here. Other species 

 taken during the last two years which had not previously been recorded from this country 

 are Grabhama wUlcncJcsii, Theob., found at Zeidab and Kingia Inteocephala, Newstead, 

 bred from larvas taken from a hole in a tree near Bor, Mongalla Province. 



Qiiasit:teyom>jia dnhiii, Theobald 

 Monn. Callcil. V., p. 13^! (1910) 



Head black with a median snow-white area and a small white patch on each side ; Qu„sisiego- 

 proboscis black ; palpi nearly as long as the proboscis, acuminate, no hair tufts, black, the "V" «'«*'o 

 two last segments with basal snowy spots, a broad median white band and a narrow basal 

 one ; antennse with deep brown plumes. Thorax black, with a median patch of flat 

 silvery-white scales in front near head, a large patch of snow-white large broad curved 

 scales on each side ; a smaller patch in front of the wings, a patch of flat w-hite scales 

 l)ehind on each side of the bare space in front of the scutellum ; scutellnm witli flat, 

 silvery-white scales. 



Abdomen black, with basal white bauds. Legs black, mid femora witli a silvery spot 

 at apex and on apical half; metatarsi of fore and mid legs, and first tarsal with basal 

 white bands, hind femora also with spots, and a white basal band on second tarsal. 



t Head clothed with flat black scales over most of its surface, two rows of flat 

 silvery-white median scales, narrow dark line between, flat white scales at the sides, dusky 

 upright forked scales at the back, black chsetae projecting forwards and inwards over the 

 eyes; clypeus and proboscis black, basal lobe of antennae black, with flat silvery-wliite 

 scales on the inside, joints banded black and brow-n, plume hairs deep blackish-brown ; 



