454 GNATS Olt MOSQUITOES — CHAPTER XIII 



112. C. fwscanus, Wied. Abdomen dusky with light grey apical 



bands. Thorax dark with signs of linear marking. 



113. C. fern<ans, Walker. Abdominal segments brown, with whitish 



hinder borders. Thorax golden-brown, with two dark -lines. 

 Tarsi brown. 



114. C. hortensis, Ficalbi. Abdomen black, with pale apical bands. 



Thox-ax, mouse-coloured, unadorned. Tarsi blue-black. Venter 

 white, with black lateral spots. 



110. CULEX SALISBURIENSIS, Theobald (Monog. II, p. 112). 



Tarsi uniformly brown. Thorax brown, with golden-brown 

 curved scales ; showing more or less linear ornamentation, a dull, 

 bare, median line and lateral ones at the back, expanding in the 

 middle of the thorax. Abdomen dark brown, with narrow, 

 apical, yellowish bands, expanded laterally so as to form yellow 

 lateral spots. Ungues of the ? , equal and simple ; fork-cells of 

 the wings rather short, and the cross-veins distmctly alternated, 

 3 distinctly outside 2, and 4 far internal. 



Head black -grounded, with straw-coloured linear curved, and black 

 erect forked scales ; the lateral flat scaled patches whitish ; antenna- 

 brown, with a lighter patch on the side of the basal joint ; palpi short, 

 black, with a peculiar quadrangular terminal joint (vide Plate xvii, 

 fig. 9). Plevurte brown, with two broad transverse creamy Imes. Legs 

 brown ; coxae, unhanded ; femora, pale, slightly mottled ; tibisE and tarsi 

 black ; knee spot indistinct. Halteres, with pale stems and fuscous 

 knobs. Length. — About 4 nun. 



Habitat, — Salisbury, Mashonaland ; March and April. 



111. CULEX CONCOLOR, Eobineau Desvoidy. 



(Mem. d. 1. Soc. d'Hist. Nat. do Paris, iv, 405.) 

 Plate xvii, fig. 8a, Venation of wing of S ; 8b, of $ . 



Tarsi uniformly clothed with mixed ferruginous, and deep 

 chocolate-brown scales, the latter preponderating on the upper 

 joints, while the last ones are almost entirely clothed with the lighter 

 scales. Thorax with chocolate ground colouring, and two sub- 

 median raised ridges, densely clothed with ferruginous scales, the 

 ridges sometimes showing as bare lines ; a large creamy patch 

 in front of the scutellum, prolonged into two very indistinct lateral 

 lines. Abdomen deep chocolate-brown, with equally wide apical 

 bands, which cover almost all of the last two segments. In the 

 (J , the last lour or live segments may be entirely ferruginous, 



