314 Mr. M. Burr's Observations on 



liaud attengentibus, inerniia ; 9 simplicia, recta, subcontigua, 

 inermia, apicibus incurvis, attingentibus vel decussatis. ^ $. 



Long, corporis . . . 10-1 r5 mm. 12-14 mm. 



Lat. pronoti .... 1-25-2 8 „ „ 



Lat. max. abdominis . 4'7 „ 4 „ 



Long, forcipis ... 3 „ 3'5 ., 



Lat. max. forcipis . . 4 ,, 1 ,, 



Rab. Tibet, Lahol, 1 ^ (Coll. Dohrn, Borm. in MS., 

 captured by the brothers Schlagintweit). India borealis, 

 Dardjiling, 4 $$, 2 $$. {Harmand, 2854-90. Mus. 

 Paris). 



This species is described under this name in the manu- 

 script notes of M. de Bormans, from a single male in the 

 Dohrn collection ; the Paris collection containing four 

 males and two (hitherto unknown) females, I have re- 

 described it. It is a ver}' distinct species, most nearly 

 resembling A. liermcs, Burr, from Sarawak; it is 

 characterized by the uniform black colour, strongly 

 depressed but robust body, the shape of the forceps, 

 which are unarmed, except for the stout but blunt tooth 

 at the base on the inner margin and by the depressed 

 and dilated abdomen of the male, which is very short, 

 and very broad at the apex ; the last three or four 

 segments are pushed into each other in a telescopic 

 fashion. 



One male is remarkably deformed, only the left branch 

 of the forceps being developed ; this is perfect, but the 

 right branch is represented only by a blunt tubercle ; it 

 may have been broken off in tiie larval stage, and not 

 reformed ; had this right branch been but slightly more 

 developed, and so been straight and simple, the insect 

 would have had the appearance of a hermaphrodite, and I 

 am strongly of opinion that the so-called cases of herma- 

 phroditism or gynandromorphism occurring not un- 

 commonly in the Forficularia, are due to arrested 

 development of one branch, for, in all examples that I 

 have examined, the abdomen has clearly shown the typical 

 nine segments of the male. It is by no means an un- 

 common phenomenon in the insects of this order to 

 have the forceps poorly developed, and this may occur 

 from a variety of causes in both, or only in a single 

 branch. 



