40G 



GNATS OR MOSQUITOES — CHAPTER XIII 



the middle. Legs dark brown. Ventral segments impure white, with 

 apical lateral dark spots. Halteres with grey stem and dark knob. 

 Length. — About 3-6 mm. 



Habitat. — Southern China. 



28 CULEX CINGULATUS, Fabr. (" S. A." 36, 11). 



Tarsi brown, with the last joints nearly white ; pale-banded, 

 on the hind legs only, at the tibio-tarsal, and on all the tarsal 

 articulations. Thorax brown, covered with pale golden-brown 

 scales, with traces of three bare longitudinal lines on the 

 mesonotum. Abdomen brownish-black, each segment with a 

 semi-circular basal band of white scales. Ungues of 5 , small, 

 equal, and simple. Proboscis banded in the 3 only. 



Head yellowish in the middle, a dark brown patch on each side, and 

 pure white, between the dark patches and the eyes, at the sides ; a few 

 black forked upright scales dotted about and dark brown bristles pro- 

 jectmg forwards ; palpi of ? , covered with black scales ; those of 3 , 

 brown, with basal white rings on the joints ; proboscis of 3 , dark brown, 

 paler at the tip, and in some lights, along the basal half ; that of 3 , with 

 a white band and yellow tip. Pleurae pale, with three white patches, 

 Halteres, with grey stem and pale brown and white knobs. Venter 

 creamy-white. Length. — 4 mm. 



Habitat. — Lower Amazons, Eio de Janeiro. 



Dr. Lutz calls it "the small day mosquito." 



Note. — The above description applies in the main to certain female 

 specimens from South America, identified with this species by Mr. 

 Theobald, in which the proboscis is not banded. Fabricius, however, 

 who ai:)pears to have based his descriptions on a 3 specimen, distinctly 

 states that the " haustellum is ringed white " ; so that should the males 

 corresponding to Dr. Theobald's specimens turn out to have an unhanded 

 proboscis, the identification must necessarily be erroneous. 



29. CULEX SECUTOR, Theobald (Monog. II, p. 321). 



Tarsi deep brown, with pale bands at the tibio-tarsal, and all 

 the tarsal articulations of the hind legs only. Thorax deep brown, 

 covered with pale golden-brown scales, and adorned with two 

 prominent bare lines in the middle in front, slightly expanding 

 anteriorly. Abdomen almost black, with traces of white basal 

 banding, which is fairly distinct on the second and third seg- 

 ments. Proboscis with a narrow pale band on its apical half, in 

 the 3 only. 



Head nearlj- black, with golden-brown linear cm-ved scales and dark 

 brown forked scales ; rather paler in the middle ; palpi of J nearly black, 

 with a grey band at the base of the long, last joint ; those of 3 with a 



