VII.— DESCRIPTION OF A NEW CAVERNICO- 



I.OUvS PHASGONURID FROM 



LOWER SIAM. 



By W. F. KiRBY, British Museum {Nat. Hist.). 



Diestrammcna annandalei, sp. nov. 



Female brownish chestnut, rather shining, the segments of 

 the abdomen often banded with brown behind ; legs lighter than 

 the body, indistinctly banded with dusky, at least towards the 

 base on the outer surface. Legs long and slender, front tibicC 

 at least twice as long as the pronotum, and longer than the femora ; 

 middle tibiae hardly longer than the femora ; hind tibiae considerably 

 longer. Ovipositor two-thirds as long as the body, slightly curved. 



Long, corporis 

 ,, pronoti 



, , f emoruni anticorum 

 ,, ,, posticorum 



,, tibiarum posticarum 

 ,, ovipositis 



Differs from D. unicolor, Brunn., which is in the British 

 Museum collection from Tsur Island, and which is recorded from 

 Vladivostok, Pekin and Moulmein, by its much longer legs, and 

 in the tibiae being distinctly longer than the femora. 



Dr. Annandale has submitted nine specimens to me, all 

 females. As the bodies are considerably arched, the dimensions are 

 probably somewhat understated. 



Locality. — Limestone caves in hills near Biserat, Jalor, Siamese 

 Malay States {Annandale and Robinson). 







14-16 mm 







5-6 „ 







13-14 ,> 







18-21 „ 







22-25 „ 







9-10 „ 



which 



is 



in the B 



