276 A Monograph of Culicidae. 



Theobaldia spathipalpis. Rondani (1872). 

 Gulex spathipalpis Rondani (1872). 



Bull. d. Soc. Ent. Ital. IV., 31, 12 (1872), Rondani ; Dipt. Ital. Prodro. 1 

 (1886) ; Mono. Culicid. I., p. 339 (1901), and III., p. 154 (1903) ; First 

 Kept. Gord. Coll. Well. Labs., p. 73 (1904). 



Additional localities. — This species has been found again in 

 the Sudan, and Mr. Willcocks sends me many from Egypt, also 

 Santa Cruz, Teneriffe, in November and December ; St. Michaels, 

 Azores, in September, Madeira in October (Dr. Grabham) ; and 

 Cyprus (Miss Bate). 



Notes. — Larvae and pupae have been found in Khartoum, and 

 are described here, as they have not previously been seen. 



The specimens were badly mounted, so that only a few 

 characters can be given. 



The larva when mature is 8 mm. long. The head is bright 

 chestnut-brown with black eyes and band across the nape, not 

 so wide as the thorax. Thorax and abdomen greenish-brown ; 

 siphon brown. The antennae are simple and tubular and end 

 in a short spine or two ; on the side towards the apical half is 

 a three-rayed bristle ; in a line between the antennae are two 

 median single bristles and one on each side composed of three 

 rays ; projecting from the front of the head are two flat curved 

 spines ending in three digit-like processes ; the labial plate is 

 acutely triangular, the bases are drawn down on each side, the 

 lateral serrations numerous and small : just in front of the eyes 

 is a four-rayed bristle. 



The thorax bears long dense lateral plumose tufts, with 

 smaller short simple tufts in four rows dorsal ly. 



The first three abdominal segments bear a tuft of several 

 plumose chaetae on each side, the fourth three setae, and the next 

 three two setae. The siphon is short and thick, and bears a 

 roinb of seven long thick thorn-like spines ; the anal papillae are 

 bluntly acuminate. 



The jmpa is 5 mm. long, the two thoracic air siphons are 

 large and much expanded, one free border being raised into a 

 prominence, the segments deeply indented ventrally ; the two 

 anal plates are very broad and the free end finely ciliated along 

 the border, the axial rod is asymmetricaJ ; there are simple 

 bristles on the head, compound tufts on the thorax, that on the 

 posterior dorsal surface of the last segment most prominent. 



