OF ANOPHELINE MOSQUITOS IN MALAYA. 141 



Myzorhynchus asiaticus, Theo. 



Definition. Mosquito with the apex of the hind femur clad with a tuft of long 

 outstanding black scales, succeeded by a tuft of long white ones. 



Naked-eye appearance. The tuft of scales on the femora of this mosquito can 

 easily be seen with the naked eye. 



Description. Head with a tuft of long white scales projecting forward from 

 the vertex over the clypeus, behind this a patch of whitish upright scales, and on 

 the occiput dark brownish black upright scales. Palpi clad with black scales, 

 except for a few pale ones at the junction of the third and fourth segments. 

 Proboscis black with light-coloured labellae. Thorax : prothoracic lobes with a 

 dense tuft of dark curved scales ; mesonotum with a tuft of white curved scales 

 projecting forward from the promontory, otherwise covered with sparse golden 

 hairs. Wings : costa with two spots, the first at the junction of the subcostal 

 vein, the second at the junction of the first longitudinal, which also involves the 

 upper branch of the second longitudinal ; fringe all black, except for a small 

 yellow spot opposite the junction of the third long vein. Legs : middle pair 

 with a patch of white scales on the apex of the femur, hind legs having at the 

 apex of the femur a dense tuft of outstanding black scales succeeded by a tuft of 

 white scales. Abdomen greenish brown, clad with numerous golden hairs. 



Summary. 



The following is a summary of the conclusions arrived at in the foregoing 

 paper : — 



(1) the species sinensis, barbirostris, umbrosus, alhotaeniatus and asiatica have 



been considered valid ; 



(2) the species vanus, annularis, minutus, paeditaeniatus and separatus have 



been rejected as invalid ; 



(3) certain new characters of the valid species have been noticed ; 



(4) the descriptions of the species have been revised ; 



(5) the genus Patagiamyia has been rejected, as also the genus Lophoscelomyia, 



both having been included in the genus Myzorhynchus ; 



(6) it is suggested that the Myzorhynchus group forms a series sufficiently 



distinct from other Anophelines to make it advisable to give it a 

 separate generic title. 



References. 



Leicester. ' The Culicidae of Malaya.' — Studies from Institute for Medical 



Research (1908). Kelly Walsh, Singapore. 

 James and Stanton. Hong Kong Medical Congress Reports (1911). 

 James and Liston. ' The Anopheline Mosquitoes of India.' Thacker, Spink & 



Co., Calcutta. 



Postscript. 



Since writing the above I have received a paper by Dr. A. T. Stanton (' The 

 Anopheles Mosquitoes of Malaya, etc' — Jl. London Sch. Trop. Med. ii, 1913,"p. 1) 

 which bears directly in several points on the subject reviewed. 



