634 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XVI. 



Male. — Head dark brown with many almost black upright forked scales. The 

 upright forked scales cease at the vertex and are replaced by brown curved 

 scales. Antennje dark and light with many dark, long plumes, proboscis is 

 dark brown. Palpi (Fig. 21) are brown with a pale band about the centre of the 

 2nd joint ; there is also a pale area at the basal joint. The hair tufts are brown. 



Thorax. — Scale ornamentation is the same as in the female, scutelleum is 

 brown with a variable number of bristles. 



Abdomen is banded the same as in the female. Male genitalia, basal lobes 

 narrow (Fig, 22), covered with dark hairs, apical segment thin and somewhat 

 club shaped. The wings are paler than those of the female, the legs have the 

 same scale ornamentation. 



Larva. — Head globular, with a few branched hairs on dorsum. The antennas 

 are short with a tuft of hairs on the inner side. The larva is like that of 

 C. futigans Wiedemann. The syphon tube is somewhat narrower. 



The eggs and egg-raft are the same as those of C. fatiguns. 



Habitat. — This banded culex was first found in a tank on the plain near Ulub 

 Camp in May 1904. It was breeding in the rain water, that had collected in 

 this tank, with Stegomyia sugens. This species was also found in the Crater, 

 Aden. Specimens were sent to Mr, Theobald, who informed me it was a new 

 species of culex. 



Stegomyia sugens Wiedemann (1828). 



Auss. Tweiflug. Mxc. p. 545 (1828) Wied. Ann. Soc. Ent. d Fr. S.4. t. 1 

 (1863). Rigot (billatus), Bull. Soc. Ent. Ital. p. 257 (1886). Ficalbi (billatus), 

 Mono. Culicid. 1. 300, Theobald (1901). 



This mosquito varies a little from the descriptions of the type. After exami- 

 ning some hundreds of specimens it was found that there were always three large 

 white spots on the thorax with a few smaller ones between. Scutellum has 

 three white spots on each lobe. 



Male Genitalia (Fig. 23) are exceedingly characteristic and as far as I 

 know have not been described. The basal segment is long and covered with 

 dark hairs, on its inner surface there is a knob-like projection covered with 

 minute hairs. 



The apical segment is thin and terminates in a flattened boss. From its 

 outer and upper end there projects a long curved hair-like process, which has 

 a blunt termination. 



Larva. — Head (Fig. 24) small and black with long curved antennae. The 

 syphon tube is short. 



Egg (Fig. 25) is the same as that of S.fasciata described by Daniels. 



Habitat and Observations. — This mosquito was first found in the tank near 

 Ulub where it was breeding with C. fatigans. It was found breeding on the 

 barrels of water at Nobat. Strange to say it has never been found further 

 up than Ulub. In Sheik Othaman and Aden it is the common mosquito and is 

 a great pest. It breeds in the wells, and wherever water is stored in barrels, 



