29G jNIr. D. Shaq^'s Contributions to the 



each side of the micldlc ; that of the 7th segment is broadly 

 emarginate. 



Ega ; one male and one female. 



8. Sunius modestus, n. sp. Brevior, latiusciilus, paral- 

 lelus, testacens, capite piceo-rufo, thorace rufescente ; dense 

 punctatiis, siibopacus ; capite subqnadrato ; thorace trans- 

 verso. Long. Corp. 1^ lin. 



This, species is extremely close to iS". hrevis, but the 

 head and thorax are not quite so broad; the elytra are 

 ■without lateral mark ; the head is darker in colour, and its 

 punctuation is more conspicuous, and joints 3 — 10 of the 

 antennai are not quite so elongate. These difierences are 

 but slight however. 



In the male the hind margin of the 7th segment is 

 broadly emarginate ; and the 6th segment, instead of being 

 emarginate on either side as in S. hrevis, has a single 

 broad, rather deep emargination, extending from side to 

 side, like that of the 7th segment. 



Tapajos ; one male and one female. 



9. Sunius crassus, n. sp. Brevior, latiusculus, paral- 

 lelus, testaceus, capite thoraceque rufescentibus ; dense 

 punctatus; capite subqnadrato; thorace ti-ansverso, elytris 

 hoc paulo longioribus, subnitidis, sat crebre punctatis. 

 Long. corp. 1^ lin. 



Extremely closely allied to S. hrevis, but not quite so 

 dull ; the head and thorax rather more distinctly punc- 

 tured, the thorax not quite so transverse ; the elytra more 

 sparingly jiunctiu'ed and distinctly shining, and without 

 lateral mark, and the antenna} a little shorter. Even more 

 closely allied to S. modestus, but with the head rather 

 broader and paler in colour, and the elytra more distinctly 

 less closely pimctured. 



Tapajos ; a single female. 



10. Sunius picfus, n. sp. Latus, subparallelus, testa- 

 ceus, capito thoraceque rufuscentibus, elytris macula late- 

 rali suturaque nigricantibus, abdominis segmento 5" infus- 

 cato ; dense punctatus, fere opacus. Long, corji. 1^ lin. 



Anteinue pale yellow, rather slender, shorter than head 

 and thorax ; 1st joint almost as long as the three followinf>- 

 together, 3rd quite as long as 2nd, each slightly shorter 



