12 STRPH1DJE. 



6 (7) A slender species, with distinctly peti- 



olate abdumen, which is clothed with 

 rather long and soft white hair ; 

 body lightly punctate ; pterostigina 

 subhyaline longicentria, Loew. 



7 (6) Species more robust, with the abdomen 



only slightly constricted near the base 

 or not constricted at all, and Avith 

 very short hair; body very strongly 

 punctate; pterostigma black or much 

 infuscated. 



8 (9) Third an tennal joint grey, dark yellowish 



beneath, only twice as long as the 

 first two joints together ; abdomen 

 with less distinct basal bands of white 

 hair marshalli, sp. n. 



9 (8) Third antennal joint black, very long,. 



almost four times as long as the first 

 two joints together; abdomen with 

 very distinct bands of white hair at 



the base of each segment dolichocerns, sp. n. 



10 (5) Face in both sexes with a black stripe ; 

 wings pubescent at the tip and 

 towards the hind border alone ; 

 species of smaller size, with the face 

 much produced below and the vertical 

 triangle of the male broad tibialis, Fall. 



1. Paragus serratus, Fabricius (1805). 



An easily recognised species, very distinct from any other (except 

 the Chinese crenulatus, Thomson) owing to its serrated scutellum 

 and carinate abdomen. Very widely distributed in Africa south of 

 the Sahara and common in British India. I have compared the 

 African specimens with others from. Calcutta and Trichinopoly in 

 my collection. Verrall (1898), Brunetti (1908), de Meijere (1908), 

 and I myself (1912) have mentioned the variability of coloration 

 in the abdomen and the legs of this species. 



A male from Mozambique, and one from Durban, both collected 

 by F. Muir ; another male specimen from Sierra Leone {Dr. J. J. 

 Simpson) and one from Nyasaland (Dr. J. E. S. Old). 



2. Paragus borbonicus, Macquart (1842). 



A species obviously allied to the preceding one on account of the 

 fused abdominal segments, but easily distinguished by the black, 

 not serrated scutellum, and by the wholly yellow face of the male. 

 The male, which w T as unknown to Loew, has a broad band of golden 

 hairs in front of the thorax. 



This species also occurs throughout the Ethiopian Region. 

 There are in the collection several specimens of both sexes from 

 Zungeru, N. Nigeria, 27. xi. 1910 (Dr. J. W. 8. Mac fie), a 

 male from Durban (F. 3/uir) t and a female from Mozambique 

 (F, Muir). 



