498 GNATS OR MOSQUITOES— CHAPTER XIV 



pale golden bands ventrally ; first segment ochreous, with 

 pale hairs. Legs brown; bases and veater of femora yellow; 

 last fore tarsi somewhat of an ochreous tint. Ungues equal and 

 simple in the 5 . 



5 . — Head covered with Hat violet-brown scales on the occiput, with 

 golden ochreous scales at the sides and behind ; across the back of the 

 head runs a semicircular line of almost black, forked upright scales, one 

 deep, looking like a black curved line with a hand-lens, a character 

 which at once separates this from other species of the genus ; proboscis 

 nearly as long as the abdomen, clothed with dark coppery scales ; palpi 

 black ; antennae brown, with narrow pixle bands. It may be distinguished 

 from Arribiilzaga's Jantliinosoina discrucians by the fore tarsal claws of 

 the 2 , which instead of being simple have an accessoi-y tooth in that 

 species. Length. — 6 mm. 

 Habitat. — Rio de Janeiro. 



4. WYEOMYIA GRAYII, Theobald (Mouog. II, p. 269). 

 = /E.perturbans, \Villiston (?). (Trans. Eat. Soc. Lond. 1896, p. 272.) 



Thorax testaceous-brown, with dusky scales ; pleurae ochreous, 

 densely clothed in parts with broad white scales. Abdomen dusky 

 black above ; venter ochreous. Legs black, coxae and venter of 

 the femora ochreous ; ungues of the ? , equal and simple. Meta- 

 notum with four choetae, placed quadrangularly. Proboscis not 

 quite as long as thorax and al)domen. 



$ . — Head covered by flat broad scales, dull purplish in the middle, 

 ochreous at the sides, and white between the eyes ; in some specimens 

 the ochreous scales border the eyes as well ; clypeus ochreous-brown , 

 antenniE almost black, only a little over half the length of the proboscis ; 

 palpi short, black scaled ; proboscis black, long and thin, swollen at the 

 tip, apex pilose. Length. — 3 to 3'5 mm. 



Habitat. — West Indian Islands. 



o. WYEOMYIA PERTINANS, WiUiston, Monog. II, p. 272). 

 = yl-:. pcrtinans, Williston (?). (Trans. Eat. Soc. Lond. 1896, p, 271.) 



Thorax brown, with dusky-brown scales on the mesonotum ; 

 pleurae yellow-brown with white scales ; metanotum deep brown, 

 with four bristles in a straight line and some smaller ones between 

 them, usually making six in all. Abdomen deep brown, with 

 dusky brown scales; venter ochreous. Legs deep brown ; femora 

 and tibiae yellowish ventrally, not bristly. Ungues of 5 , equal 

 and simple. 



? . — Head yellowish-brown, with flat scales, ochreous at the sides, 

 purplish-brown in the middle ; clypeus deep brown ; antennae almost 



