136 Records of the Indian Museum. [Vol. IV, 



as long as it is wide. In old or denuded specimens it occasionally 

 appears as if a frontal callus were present. Species from y^ to 13 

 mm. in length. 



Tabanus erythrocephalus , Wulp, from Halmaheira Island, and 

 Tabanus leucopterus, Wulp, from Aru Island, in the Australian 

 Region, appear to belong to this group. 



Tabanus virgo, 9 & , Wiedemann. 



Anal. Entomol., 22 (1824) ; id., Auss. Zweifl. Ins., i, p. 184 

 (1828). 



Tabanus alhuhis, 9 o* , Walker, Dipt. Saund., i, p. 46 (1850). 



Tabanus puella, & , Walker, /. c, p. 53. 



Types of Tabanus albulus, male and female, from India 

 ^Saunders coll.). 



Type of Tabanus puella, male, from India (Saunders coll.). A 

 male from Mysore (H. K. Slater). In Indian Museum coll. Speci- 

 mens from Calcutta and Pusa, Bengal. The Wiedemann type 

 came from East India. Slaty grey with red-yellow antennae and a 

 twofold white spotted abdomen. Length 4 — 4^ lines, & 9 . 



Antennae bright rusty yellow ; face rather grey haired. Palpi 

 very light yellow. Beard white. Forehead light 3'ellowish green 

 without a callus or line. In the male it is ochre-yellow behind the 

 antennae. Thorax slaty grey, very faintly white striped, the 

 median line extremely narrow. The shoulders and posterior sides 

 of thorax almost chamois-leather colour. Breast sides whitish. 

 Abdomen slaty grey with narrow yellowish white-haired segmenta- 

 tions : on each segment two white-haired roundish spots. Wings 

 very hyaline with ochre-yellow veins and halteres. Legs ochre- 

 3^ellow with almost chamois-leather coloured femora. In the 

 Royal Museum. Wiedemann, Auss. Zweifl. Ins., i, p. 184. 



This small species is easily recognized by the unmarked fore- 

 head and very pale wings, yellow antennae and legs and spotted ab- 

 domen. The female specimens above mentioned vary from 9 — 11 

 mm. One male onl}^ measures 7-I mm. 



The description given by Wiedemann of the colour of the 

 abdomen only applies to ver}^ fresh specimens, the grey colour 

 being caused by the grey tomentum covering the abdomen, viewed 

 best from behind ; the ground colour of the abdomen is greyish 

 brown, rusty coloured at the sides of the first three or four seg- 

 ments, the pubescence blacky but white on the spots and seg- 

 mentations ; under side lighter with white pubescence, darker at 

 the apex. The thorax is blackish brown covered with grey tomen- 

 tum and with some appressed fulvous hairs, the stripes hardly 

 visible. The forehead is about five times as long as it is wide, and 

 a third narrower anteriorly, yellowish, showing no callus when 

 fresh, if denuded one is sometimes visible. Antennae reddish yel- 

 low, the first two joints pale yellow. Face ashy grey with white 



