67 



Report on Econobiic Entomology 



/o 



« 



Fred. V. Theobald, ]\I.A. 



Vice-Principal and Economic Zoologist to the S.E. Agricnltural College ; President of the 

 Association of Economic Biologists of Britain ; Foreign Member of the Association 

 of Economic Entomologists, Washington, U.S.A., etc. 



PART I 



Second Report on the Mosquitoes or Culicidte of the Sudan 



Several mosquitoes new to the Sudan have been collected during the past year, including 

 a representative of a new genus and three new species. The males of three species 

 described in the last report have also been found. 



A slide has also been sent of some aquatic larvae which were said to be preying on 

 the mosquito larvse in pools. This cannot be reproduced, nor can the larvae be identified. 

 Some are young Dragon Flies (Odonata). 



The new genus described here comes near Stegomyia and has been called Quasistegomyla ; 

 the species much resembling the East Indian Stegomyia snttellaris (Walker). 



Another new species is placed in Mansonia, but I am not sure if there are not 

 traces of flat scutellar scales, if so, it must be excluded from that genus and must 

 constitute the type of a new one. 



The species new to the Sudan but previously known in Africa are CilJia squamosa, 

 Theobald ; Cule:i, luteulatn-alis, Theobald ; Culex hirmdipaJjus, Theobald ; the males of 

 Myzonnjia nlli, Theobald, and Uranotania balfoiu-i, Theobald, are described, and two 

 other new Culex, named Culex ruhinotus and Culex nectvei. 



j^deomyia squammipenna (Arribalzaga) should have been included before as it was 

 recorded in my Monograph in 1903, and now Colonel Penton, P.M.O., has found it 

 again. Dr. Balfour has also bred Culex tiyripes of Grandpre. 



There are probably a great number of Sudanese Culicidai, but they must be systemat- 

 ically collected and bred and their larva; and pupa3 kept, so that they can be properly 

 described before we shall make much progress in the matter. Damaged material is 

 useless, so are larvaj if we do not know the adults they give rise to. 



Genus Anopheles, Meigen 

 Syst. Beschr. I., 10. (1818) 

 Mono. Culicid. I., p. 115 (1901) and III., p. 17 (1903) 

 Auopheles welleowei, Theobald. First Kept. Gord. Coll. Well. Labs., p. 64 (1904) weUcomef 



Fresh specimens of this species have been taken by Colonel Penton on the Jnr and at 

 Meshra. 



It has also occuiTed in the Aden Hinterland, specimens having been sent me by Captain 

 Patton, I.M.S., who, however, does not agree that they belong to any species. I can only 

 say that they are the same as the specimens I described from the Sudan. 

 The male has not yet been found. 



