Aedinae. 35 



20. URANOTAENIA SOCIALIS. Theobald. 



(The Jamaican Uranotaenia.) 

 (Mono. Culicid. IL, p. 340, 1901.) 



General appearance. Head dark, covered with flat black scales, 

 and metallic blue ones bordering the edges in the middle ; palpi 

 small, brown ; proboscis black, swollen apically. Thorax brown, 

 with a yellowish chestnut tinge, with very small bronzy brown 

 scales, a median row of small flat blue to mauve scales ending at 

 the bare space in front of the scutellum, a similar coloured patch 

 in front of the root of each wing and a small median one on the 

 scutellum; prothoracic lobes blue. Abdomen black, unbanded, 

 sometimes showing a pearly patch on the apex of the fifth and 

 sixth segments. Legs black, unbanded, with a white knee spot and 

 another at the apex of the tibiae. Wings with a pale blue tint at 

 the root of the fifth long vein. Male ungues of the fore legs very 

 slightly unequal, small and simple ; of the mid very unequal, sickle- 

 shaped and simple ; hind smaller, nearly equal, and simple. 



Length. 2 mm. 



Geographical distribution. So far only recorded from Jamaica. 



Life-history and habits. The life-history does not seem to be 

 known. Dr. Grabham found the larvae in association with 

 Anopheles larvae in some stagnant permanent pools about the 

 Kingston district, and was unable to get the adults to bite. 



21. DEINOCERITES CANCER. Theobald. 



(The Crab-hole Mosquito.) 



(Mono. Culicid. II., p. 215, 1901, and HI., p. 275, 1903.) 

 General appearance. Head blackish-brown, with grey narrow 

 curved scales, with a dull creamy tinge in front, ochraceous and 

 pale brown upright forked scales ; palpi brown, with a few 

 grey scales; proboscis brown, black apically, apex expanded. 

 Antennae long, the second segment as long as the three follow- 

 ing, second segment with small brown scales ; in the male the 

 antennae are very long, considerably longer than the whole 

 body, pilose, not plumose, as in all the preceding Culicidae. The 

 second segment is equal in length to two of the following segments. 

 Thorax black, paler towards the scutellum, covered with narrow 

 curved bronzy scales which have a greyish tinge in certain lights. 

 Abdomen steely black, with deep umber-brown scales with violet 

 reflections, no trace of bands or lateral spots. Legs unbanded, 

 brown, with bronzy and yellowish reflections ; ungues of female 



D 2 



