514 Records oj the Indian Museum. [Vol. XXII, 



not be much larger (about 15 mm.) and, as it shows absolutely no 

 trace of elytra or wings, it would be apterous. If correct, this 

 feature would need the creation of a new genus, the female of 

 SpelaeoUaUa gestroi, Bol., showing rudimentary elytra, and consi- 

 dering that an apterous male could not enter the same genus as a 

 female provided with elytra. Yet, the male of S gestroi being 

 unknown, it seems better-to leave the present species in the same 

 genus till more abundant material is obtained. 



It would be of the greatest interest to search those remarkable 

 species which are known both from a single type-specimen only. 



As I stated before, 5. caeca is one of the most interesting 

 cavernicolous Orthoptera, as it shows remarkable adaptative char- 

 acters consisting in the disappearance of the pigment, the unusual 

 length of antennae, legs and cerci and the complete disappearance 

 of the organs of sight. From that point of view, it is the most 

 adapted cockroach known, as none of the species described till now 

 .show completely blind males. 



Fam. PHASGONURIDAE. 



Subfam. RHAPHIDOPHORINAE. 



Gen. Rhaphidophora, Serville. 



Rhaphidophora rufobrunnea, sp. nov. 



(PI. xxii, figs. 15 to 17.) 



Type. — One immature male from a cave near Yawnghwe, foot 

 of Elephant Hill, S. Shan States (F. H. Gravely, friiviy). 



Species of a probabl}- medium size, with a very marked colora- 

 tion, stout stature, almost without pubescence. 



Head little narrower than the pronotum ; occiput and fore- 

 head almost black, rostrum narrow, black, forming two sharp 

 tubercles, separated by a ver5^ narrow furrow v^hich does not 

 extend to the base of the rostrum ; two large whitish ocellar spots. 

 Face yellow with two small brown spots beneath the eyes and two 

 brown bands beneath the antennae which do not extend to the 

 clypeus ; anterior part of the face verj' broad, narrowing suddenly 

 at the base of mandibles, clypeus about once and a half broader 

 than high, much narrower downwards, presenting two impres- 

 sions in its inferior part and two small brown spots in the superior 

 part ; labrum longer than wide, brown with a short basal keel. 



jMoxith parts short, brown ; maxillary palpi long, yellow, the 

 three last joints subequal in length (2'2 — 2"4— 3"i mm.) ; labial 

 palpi rather long, the 3rd article equaling the other two together. 

 Antennae rufous brown, almost glabrous at base, pubescent after, 

 very close together at base ; first joint big, yellowish, with a 

 brown band along the internal border ; second joint ver}' short, 

 3^ellow ; third a little longer, brownish ; fourth shorter than the 

 third but longer than the following ones. 



Pronotum rather narrow, with anterior and posterior margins 

 little convex, lateral lobes moderately high, their inferior margin 



