4 D. Sharp. 



11. Bidessus sp. A single example from Gebel Ahmed 

 Agha is probably an undescribed species. It is of the obscure 

 division of the genus, and is not in good preservation. 



12. Bidessus complicatus n. sp. Oblongo-ovatus, testaceus, niti- 

 dus, minus crebre punctata s, elytris signatures nigris complicatis ; 

 pectore abdomineque piceis, fere laevigatis. Long. l r, /g> ^- 7 /s mm - 



Head pale yellow, clypeus incrassate in front so as to appear 

 margined. Thorax with a deap plica on each side, and adjoining 

 tins with a short black mark; inrfmnctate. Elytra with elongate, 

 well marked plica, very shining, almost without pubescence, with 

 a deep sutural stria, and a distinct punctuation; their colour a 

 pattern of black and yellow in which the black considerably pre- 

 dominates ; the base entirely black and the suture of that colour 

 for all its length, a very irregular yellow fascia before, and 

 another behind the middle, and at the apex with three yellow 

 marks starting from the side and forming a sort of trident. 

 Undersurface almost impunctate, the breast and abdomen strongly 

 tinged with black. This pretty little insect is evidently allied 

 to B. sharpi Reg., a species with which I am not acquainted. 



One specimen on waterplants, White Nile, Gebel Ahmed 

 Agha; one specimen White Nile, N. of Kaka. March. 



13. Bidessus confusus, Klug. Four specimens, White Nile, 

 N. of Kaka. March. 



14. Clypeodytes lentus n. sp. Breviter ovalis, latus, testaceus; 

 elytris fuscescentibus, limbo dilutiore, dense punctatis, pubescen- 

 tibus, haud nitidis. Long. l 5 /s> lat. 1 mm. 



Closely allied to C. cribrosus Schaum but only half the size, 

 shorter in form and with the elytra densely punctate. C. semi- 

 nulum, from the Congo, is about the same size but is black 

 beneath. The thoracic and elytral striae are the same as in C. 

 cribrosus. The head is very finely punctate, the thorax extremely 

 short, not marked with black. The punctuation of the elytra 

 is quite definite as in C. cribrosus. The obscuration of the colour 

 seems to arise from some vague dark spots, but the individuals 

 are in bad preservation so that it is difficult to judge of this. 

 The undersurface is very densely punctate. 



Two specimens on waterplants, White Nile, Gebel Ahmed Agha. 



