458 GNATS Oil MOSQUITOES — CHAPTER XIII 



with the under surfaces of femora and tibiic pale. Halteres pale ochreous. 

 Venter almost entirely white-scaled. Lencfth. — About 6 mm. 



Habitdt. — South America : Rio de Janeiro and Lower Amazon. New 

 Amsterdam, Trinidad. 



116. CULEX LATERALIS, Meigen 



("S. B." i, 5; "F. R." jj. 282). 

 = C. albopunctatiis, Eondani {fide Ficalbi). 



Tarsi uniformly black. Thorax black, covered with bronzy- 

 brown scales, with a narrow median, and broad lateral white 

 lines {vide fig. 2, p. xvii), contracted about the middle of the 

 mesonotum ; numerous pale scales in front of the scutellum. 

 Abdomen dusky-black, with basal lateral white patches. 



5 . — Head black, with creaiuy spmdle-shaped scales in the middle, 

 and forming a row behind, pure white at the sides, between which, on 

 the occiput, is a patch of black, curved scales with scattered long forked 

 scales, mostly ochreous in front, and black behind ; a small pale 

 patch just in front, projecting between the eyes ; border of the eyes 

 with a narrow white rim ; antennie dark brown, basal joint very dark 

 brown ; proboscis black ; palpi rather long, covered with black scales 

 showing metallic violet reflections. Legs with pale coxae, bases of the 

 femora, and knee-spot white ; remamder dark brown. Halteres white 

 scaled. Venter brown, with basal white bands. Differs from C. ornatus 

 in having only abdominal spots in place of bands. Length. — 6"5 mm. 



Habitat. — Recorded from most parts of Europe, including England. 



117. CULEX SUBALBATUS, Coquillett. 



[Proc. U. S. Nat. Mus. vol. xxi, p. 302 (1899).] 



Tarsi black. Thorax brownish-black in the middle, and 

 white at the sides. Abdomen brownish-black, with silvery 

 lateral spots. 



$ . — Head and appendages black, except the basal half of the second 

 antennal joint, which is yellow ; the first joint, and the occiput next 

 the eyes, covered with white tomentum ; proboscis curved downwards 

 towards its apex. Pleunt' neax-ly black, with several white-scaled patches ; 

 tufts of black hairs above the roots of the wings ; scutellum, mettmotum, 

 and post-angles of thorax yellowish-brown. Halteres yellow with brown 

 knobs. Venter with silvery bands, which are prolonged on to the sides 

 of the segments. Length. — 7 mm. 



NoTii. — Coquillett describes the fore tarsal claws as unequal, with the 

 larger claw only with an accessory tooth. ^Ir. Theobald remarks that 



