igii.] G. RiCARDO : The Oriental Tahanidae. 323 



Division III. Legs not uniform in colour, but with typical rings 



on the middle tibiae only, all tibiae whitish at base Group III. 

 Division IV. Legs not uniform in colour, but with typical rings 



on the middle and posterior tibiae Groups IV, V, VI, VII. 



Group IV. First joint of antennae abnormally large and 

 stout, and as long as or longer than the third joint. 



Group V. Third joint of antennae broad and flattened on 

 the first annulation, the last three annulations forming a 

 narrow apex, the first joint incrassate, nearly as long as 

 or longer than the first annulation of third joint. 



Group VI. Third joint of antennae not very broad at base, 

 the first joint short, often only half as long as or at least 

 always shorter than the third joint which is usually long 

 and slender. 



Group VII. Antennae long and slender, the first joint as long 

 as the second and third together. 



Division I. 



Group I. 



Legs uniform in colour, with no rings on the tibiae or pale 

 bases to fore tibiae. 



Haematopota roraliSt Fabr. 

 (Plate xvii, fig. 24.) 



Syst. Antl., 107, 2 (1805) ; Wied. Dipt. Exot., 97, i (1821) ; id., 

 Auss. zweifl. Ins., i, 215 (1828) ; Bigot, Bull. vSoc. Zool. France, 

 xvi, 78 (1891). 



Wings with white spots, abdomen brown, with three stripes 

 and spots, white. Habitat — Tranquebar. Related to H. pluvialis. 

 Antennae elongate, yellow. Head ashy grey with two frontal 

 black spots. Thorax dark, with an ashy grey stripe. Abdomen 

 elongated, brown, with three white stripes and spots. Median 

 stripe and spots linear. Wings dark with very numerous white 

 spots and little lines. Legs testaceous. Fabr., Syst. Antl., 107. 



Brownish grey. Thorax and abdomen with white stripes. 

 Wings with hyaline little spots. $ 4I 1. From Tranquebar. 



The head is gone in the Fabrician type and the abdomen is 

 crushed ; but it is easily distinguished from H. pluvialis, by the 

 legs being unicoloured, blackish ' ochre-brown, not variegated, and 

 by the chestnut brownish costal border and stigma of the wings ; 

 segmentations of the abdomen reddish, but of the under .side greyish 

 white. In the Fabrician collection. Wied., Auss. zweifl. Ins., i, 

 p. 215. 



In Brit. Mus. coll. a male from Velverry, a female from Hot 

 Wells, Trincoraalee, and another female from PankuUam Road, 

 Trincomalee ; Ceylon (Yerbury), 1891. 



1 In Dipt, exot, WiecTemaati describes the legs as ochre-brown. 



