14 



LIST OF ILLUSTRATIONS 



VOLUME B 



Fig-. 1. — Ma]i of AiiS'ln-K<;y|itian Sudan, 



showing I'rovinces ... ... 2 



Fig. 2. — Floating Laboratory and S. W. C'ulex 16 



Fig. 3. — Mechanical Shaker for Soil tubes ... 35 



Fig. 4. — Centrifuge for Soil analysis 39 



Fig. 6. — Ajiparatus for the determination of 



"Silt" 41 



Fig. 6. — Map showing mean rainfall in the 



Anglo- Egyptian Sudan, 1905-9 ...4(;-47 



Fig. 7. — Map .showing proposed Gezira Irri- 

 gation Scheme 49 



Fig. 8. — Map of the Gezira, showing points 

 at which samples of Soil were 

 collected for Analysis ... ... 51 



Fig. 9. — Calofropis jyrocera, showing leaf, 



flower and seed-j)od ... ... 87 



Fig. 10. — Calofropis procera, showing entire 



plant 87 



Fig. 11.— Map of Anglo-Egyptian Sudan ... 94 



Plate 1. — (Jhri/sops fuscipennis. Ho'ina- 

 topota abyssinica. Haematopioia 

 hmnnescens. Tnlianus sufis 



Facing 112 



Plate II. — Tabaniis distinctus. Tabanus 

 kingi. Tabanus camelariiis. 

 Tnhanus mordax ... ... Faciuf/ 114 



Plate III. — Tahaimx fn^niohi. Tabanus 



par ... ... ... ... Facimr 116 



Plate IV. — Tnhamts difrfniatiis. Gastro- 

 ji/iihi.t ti.iimis. (Esfriis variolosus 



Facing 118 



Fig. 12. — Heads of '/'abainix kiiigi and 



Taliainis timiola ... ... ... 120 



Fig. 13.— View of Khor Arbat 121 



Fig. 14. — A rock at i\lior Ai-bat showing 

 sites selecteil l.iy T. kingi for 

 ovipositing ... ... ... ... 122 



Pl.^te V. — Tabanus diUvniatiis and kingi 123 



Plate VI. — Lyperosia exigiia. Lyperosia 

 miniifa. Lyperosia thirov.vi. 

 Lynchia maura. Echestyp>us 

 sepiaceus. Nycteribosca africatia. 

 Simulium r/riseicollis. Simuliuni 

 daiiinnsum. Culicoides, sp. Facing 126 

 Fig. 15. — hiirvix oi (Fstrns variolosus ... 127 



Fig. 16. — Pupa of CEstrus variolosus 127 



Plate VII. — Sphenajitera neglecta ... ... 135 



Plate Vlll. — Baris fru-gardlii. .Ijionifri/iin 



hinilbihi ... ... ... Faring 137 



Plate IX. — HinoxyUDi smlanicnm. /laria 

 loratn. Ajjlvvnogaster barbara. 

 Ardacopliora foveicollis. Bagradii 



picta ... ... ... Facing 140 



Yig.ll.-^Diceromyia afi'icana ... ... 152 



Plate X. — Diceromyia africana, n.ti'p. ... 153 



Fig. 18. — Diceromyia africana, ^ clasper ... 154 



Pl.\te XI. — Chdex sudanensis, n.sp 155 



Fig. 19. — Culex sudanerisis, $ clRnper ... 156 



Plate XII. — Quelea (xthiopica ... Facnig 1()7 

 Plate XIII. — Hyphantorjiis fmiiojiterus 



Facing 175 



Pl.vte XIV.— Buthidie 178 



Fig. 20. — Buthus oca'tajiws, from above ... 179 

 Fig. 21. — Buthus occifanus, abdomen from 



below 179 



Fig. 22. — Last two segments of cauda of 



Buflius amm-euxi ... ... ... 183 



Fig. 23. — Last two segments of cauda of 



Bufltiis quiuqnestrintns ... ... 183 



Fig. 24.— End of foot of a .S)(Y/i«s 183 



Fig. 25. — Cephalothora.x of i??///i«s wwnd.c... 183 

 Fig. 26. — Movable finger of maxillary palp 



oi Si Parabuthns ... ... ... 183 



Fig. 27. — Stenvxm oi Pandinus 183 



Plate XV. — Pandinus imperator. Pan- 

 dinus pallidus. Buthus acute- 



carinatus. Damon variegatns ... 189 



Fig. 28. — Maxillary palp of Damon variegatus 190 



Fig. 29.— Mandible of a ffaZeocies 192 



Fig. 30.— Mandible of a i?/^n;/orfe« 192 



Fig. 31. — Upper mandibular finger of Solpuga 



schtoeinfurf/d ... ... ... 192 



Fig. 32. — Mandible of Gluviojisis rufescens 192 



Fig. 33. — Mandible of 7)(e.<!'M( e/«wi6eiv/t ... 192 

 Fig. 34. — Upper mandibular finger of Solpuga 



dentatidens ... ... ... ... 192 



Fig. 35. — Galeodes arabs 192 



Plate XVI. — Naia nigricollis 197 



Fig. 36. — Alimentary tract of adult melon 



hng, Aspon{/opus viduatus ... 202 



Fig. 37. — Structure and life-cycle of Hcrpe- 



fomonas asjiongopi ... ... 203 



Fig. 38. — Overseer's store hut, dug out ... 206 



Fig. 39. — Overseer's hut near old furnaces 206 



