1869.] Indian Arachnoidea. 217 



The abdomen is oval, posteriorly broader and more inflated, 

 obtusely pointed at the extreme end ; the anterior edge slightly covers 

 the thorax. The general colour is a fawn or pale brown, with 

 very numerous equally distributed white dots ; a dark brown band 

 extends from the anterior edge to about the middle of the abdomen 

 or more than half of its length, and at the end it is provided with 

 short processes. Laterally, from the anterior edge, a thin zigzag 

 brownish stripe with one blackish dot at each angle runs to the 

 anus. The lower side is of a uniform greyish fawn colour, and 

 thickly covered with whitish hairs. The epiginium is slightly promi- 

 nent, brownish, with a thickened white posterior margin. The 

 outer appendages of the spinners equal in length to the body ; they 

 consist of three joints, the first being very small, the second about 

 three times as long as the former and the third somewhat more than 

 three times as long as the second, gradually attenuating into a point. 

 The middle pairs of spinners extend only to half the length of the 

 second joint. 

 Length of thorax .... 3 m.m. ; its width in the middle 3 m.m. 



— abdomen 6 „ ,, ; 4.5 „ „ 



of one foot of the first pair, ... 22 m.m. 



2nd ... 20.5 „ „ 



3rd ... 8.5-9,, „ 



4th ... 19 „ „ 



From Blackwall's H. versicolor this species differs by having the 

 second pair of feet almost quite as long as the first, by the want 

 of whitish bands on the feet and the different markings of the 

 thorax and abdomen, the latter possessing a number of dark spots 

 extending from the posterior end of the dark longitudinal band to the 

 spinners. 



Loc. Neighbourhood of Calcutta ; apparently very rare, only one 

 full grown specimen having been met with during a period of two 

 years collecting of Arachnoidea in this vicinity ; it was caught 

 on the wall of a house. I subsequently observed another young 

 specimen in my own house ; it moved about either forward or 

 sideward, flatly pressed to the wall, exactly like a Philodromus, and 

 appeared to be very shy. Like the young of Philodromus, this young 

 Hersilia was more hairy than the full grown animals are. 



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