BY W. R. COLLEDGE. 129 



iridescent scales, and long brown hairs ; j^leura with a 

 naked brown stripe from the origin of the wings to the scale 

 like prothoracic projection, below this densely covered 

 with silvery scales ; metanotum brown naked. Halteres, 

 ochre yellow. Abdomen about twice the length of but 

 narrower than the thorax, flat, deep metallic blue, except 

 the first segment, the latter green with a yellow patch 

 on each side ; fifth segment shows some golden yellow 

 laterally, sixth and eighth segments ornamented with 

 a strong tuft of [;olden hair laterally, the seventh with 

 black tufts ; all the segments slightly bordered with golden 

 hairs laterally ; the first to the third and fifth to seventh 

 golden yellow beneath with a metallic blue longitudinal 

 stripe down the centre ; fourth entirely metallic blue, and 

 the terminal one brilliant pale green. Coxae clothed with 

 silvery scales. Femora and tibiae metallic violet, the 

 former golden yellow beneath. In the intermediate and 

 fore legs, the first joint of the tarsi white except at the base, 

 and the second also except at the apex ; the rest metallic 

 violet. Wings longer than the abdomen, with a pale 

 brownish tint anteriorly and along the fifth longitudinal 

 vein, veins pale brown, cilia pale and short, Aveak renections. 

 Auxilliary vein joining the costa almost opposite, but some- 

 what beyond the posterior branch of the fifth longitudinal ; 

 sub-costal cross vein distinct, situated about midway 

 between the origin of the anterior branch of the fifth 

 longitudinal vein, and the origin of the second longitudinal ; 

 fork of the latter very small, the tips of the branches slightly 

 bent anteriorly ; supernumerary cross-vein equal in length 

 to the middle cross vein ; posterior cross-vein more than 

 twdce the length of the latter, rather sinuose, tip of the 

 anterior branch of the fifth longitudinal vein joining the 

 margin opposite the middle of the second posterior cell, 

 a very prominent wing fold running close to the posterior 

 side of the fifth longitudinal for the whole of its length,, 

 and another on the anterior side in the anal cell. 



The question arises, as we are anxious to destroy 

 the noxious kinds of mosquitoes, and there are unquestion- 

 ably difficulties in the way, would it not be a wise thing 

 to use this particular insect for that purpose ? It is not 

 the only mosquito possessing cannabilistic habits. There 

 are two in our neighbourhood which in their larval state 



