434 Extract from Note Book regarding the Genus Paussus. [No. 138. 



curious moveable spine, slightly incurved, and projecting over the lat- 

 ter segment of the abdomen. Body beneath a bright chestnut ; head, 

 antennae and thorax a livid brown ; all the joints in the tarsi are simple, 

 cylindrical, furnished with hairs beneath, and of five joints in each leg, 

 the first small, the last longest. 



Note. — Taken accidently while sweeping in high grass with a net 

 under a Munja clump, (Saccharinum Munja.) On withdrawing this in- 

 sect from the net, it gave two very distinct explosions, leaving the ordi- 

 nary black stain on my fingers, the abdomen also swelled very much 

 when submitted to the hot-water process. 



No. 7. — Sultanpore, Benares, September 6, 1841. — A very curious 

 Paussus, length 6-20th of an inch. Antennae of two joints, the 

 last long, club-shaped and grooved all round, forming six divisions, 

 which, however, I could not discover to be perfoliate. The first joint 

 near the base beneath is furnished with a small curved spine, above 

 which, near the club, is a minute oval excavation. Head hexagonal, 

 irregular, somewhat gibbose ; eyes not visible from above, rounded 

 when seen at the side. Thorax cordiform, broadly truncated posteriorly, 

 with two small depressions on each side. Abdomen cylindrical, or 

 shaped like a tub, palpi small, salient, the labial ones being over-arched 

 by those of the maxillaries. No follicle observable on elytra. Tarsi of 

 five joints, all simple, the first exceedingly minute. The coloring in 

 this insect is peculiar ; the last three divisions of the antennae, and 

 lower half of the elytra, are blue black. The head, antennae, thorax, 

 abdomen, and upper portion of the elytra, a bright light sienna. The 

 legs and tarsi chestnut. 



Note. — Found crawling up the wall of my bathing room. On being 

 plunged into hot- water, the abdomen became greatly distended ; but I 

 observed no crepitation at this moment, or at the time of capture. 



No. 8, Fig. 8. — Almorah, July 29, 1842. — Genus Paussus, length 

 9-20th of an inch. Head gibbous, strongly excavated both anteriorly 

 and posteriorly, exserted from the thorax, the neck appearing very 

 long. Antennae of two joints, the last long, shaped like a peas-cod and 

 bearing a small recurved tooth near ' the base of the upper' margin, 

 edges compressed, and forming a carina on each side. Thorax cordi- 

 form, broadly truncated posteriorly, with the lateral margins produced : 

 a sulcus in the form of a crescent runs across the thorax near its 



