174 Records of the Indian Museum. [VoL. XII, 
STRONGYLIINAE. 
® Strongylium tenuicolle, Say. 
1874. Riley, C. A. “Sixth annual report on the noxious, bene- 
ficial and other Insects of the State of Missouri.” 1874, 
pp. 117-118, text-fig. 32. 
The Indian Museum collection of Tenebrionidae includes larvae 
of Cataptestus indicus and a cast larval skin of Strongylium sobri- 
num. The larvae of Catapiestus indicus have already been des- 
cribed (loc. cit.); but as the characteristic structures of the 
posterior end of the abdomen do not show well in the plate I take 
this opportunity of figuring them on a larger scale (pl. xx, fig. 5). 
The cast larval skin of Strongylium sobrinum was found with 
a newly emerged adult in rotten wood. The adult was soft and 
quite white, but quickly hardened and assumed the characteristic 
dark olive colour when put alive into a tube with some of the 
wood from which it was taken. ‘The larva of this species is as yet 
unknown. Many of its characters can, however, be determined 
from the skin, and these may now be described. It is unfortunate 
that the general form of the body cannot be determined. Itseems 
unlikely, however, that the anus protruded in the living larva to 
anything like the extent that it does in the larva believed bv 
Packard to be that of Strongylium tenuicolle, Say. 
Strongylium sobrinum, Dohrn. 
(Pl txace figsiO-73) 
Locality.-—-Darjeeling District: Kalimpong, ca. 2000 ft. (in 
rotten wood). 
The head bears a number of very large spines which appear 
to have had a definite arrangement. What this arrangement was, 
however, is not clear in the somewhat contorted state of the 
exuvium. 
The labrum is more or less oval, and quite twice as broad as 
long. The antennae appear to be two-jointed, the basal joint 
being both shorter and broader than the other, which is about twice 
as long as broad and bears a few spines distally ; but it is possible 
that they are incomplete. The mandibles are massive; they are 
much worn, but each appears to have had three terminal teeth 
and one large molar tooth. The blades of the maxillae are fringed 
with very strong spines ; there are a number of finer spines behind 
the margin at the tip, and a few very long slender ones behind 
these. The maxillary palps are three-jointed, and are alittle shorter 
than the blades; the first joint is about twice as broad as long; 
the second is scarcely as long as the first is broad, and scarcely 
as broad as long ; the third is about as long as the second is 
broad and nearly twice as long as broad. The labrum is squarish 
