237 SOME NEW MOSQUITOES FROM CEYLON. BY F. V. Theobald, M,A., Communicated by E. Ernest Green, F. E. S. (With Plates A & B.) A small colleotion of mosquitoes taken by Mr. E. E. Green in Ceylon included four new genera and eight new species which are described here. Besides these, a single 9 of Donitz's Anopheles deceptor ; 9 '& of Myzorhynchus barbirostris, Van der Wulp ; 9 's of Giles Stegomyia pseudotceniata, also 9 Tceniorhynchis ager, Giles ; Culex tigripes, Grand-pre ; Mansonia annulifera, Theobald— all new to the Island. The Anopheles deceplor shows, on examination of the scales, to belong to Meigen's genus Anopheles as recently restricted by me. Some $ and 9 Myzomyia ross u, Giles, were very pale varieties. No other species in the collection had any peculiarities. Two of the new genera Lophoceraomyia and Rachionotomya are of particular interest on account of their peculiar structure, the latter having a large scutellar spine, the former a strange modification of the verticillate hairs which appear to form definite organs ; what purpose they serve is at present unknown. Genus MEGARHINUS, Rob. Desvoidy. Essai sur les tribu des Culicides, Mem. Soc. d Hist, de Paris, TIT, p. 412 (1827). Megahhinus minimus, nov. pp. (fig. 1). Thorax shiny black with metallic bronzy scales, some blue and greeii scales at the base of the wings ; pleurae silvery white ; prothoracic lobes blue. Head bronzy brown with metallic green and blue border around the eyes. Palpi long, acuminate and thin, deep violet ; pro-boscis deep violet. Abdomen metallic violet and purple with creamy lateral spots, the apical segment coppery red ; basal lobes of genitalia deep brown. Legs brown with violet reflections, creamy at the base of the femora and below the femora. $ Head black with deep bronzy brown flat scales behind and over most of the surface with sometimes metallic reflections and with metallic green and blue scales around the eyes. Two black onsetse project forwards between the eyes and one on each side of the median pair. Antennje brown, the basal joint large and globular, black with
BioStor
