1136 COLEOPTEKA 



Coxal lamina well developed, the trochanteral portion larger than 

 in Thoramus, but with the femoral portion smaller. Tarsi mode- 

 rately slender, basal joint of the posterior as long as the other four 

 taken together, penultimate very short above, distinctly lamellate 

 underneath. 



This genus is allied to Monocrcpidius. 



2017. S. brunnea, "-s- Suhparallel, slightly glossy, densely 

 clothed with fine, short, yellowish hairs ; reddish-brown, apex and 

 hind angles of thorax paler ; legs testaceous, antennae rufo-testa- 

 ceous ; underside closely and finely punctate and pubescent, rufo- 

 castaneous. 



Head closely and moderately coarsely punctured. Antenna 

 rather slender, their tenth joint reaching backwards to the 

 thoracic angles ; third joint slightly longer than second, both 

 short, and, together, about one-third shorter than the fourth ; 

 joints 4-10 slightly serrate, eleventh with an ill-defined false ter- 

 minal joint. Thorax slightly longer than broad, convex, gently 

 narrowed in front of the middle, nearly straight behind ; posterior 

 angles stout, ridged above, directed backwards ; its punctuation 

 moderately close, but rather finer than that of the head. Scutclluvi 

 densely and finely punctate. Ehjtra a little wider behind than at 

 the base, apices obliquely rounded and somewhat raised ; they are 

 distinctly and regularly striate throughout, the striae with rather 

 elongate but not closely-placed punctures ; interstices with numerous 

 fine punctures, appearing rugulose. 



In general appearance somewhat similar to Exaolus riifescens, 

 but at once differentiated by possessing distinct lateral thoracic 

 margins. 



Length, 1^ ; breadth, lA lines. 



Howick. One individual only, probably a female. 



GENUS OF DOUBTFUL POSITION. 



Byrrocryptus. 



Nov. gen. 



Body elongate-oval, moderately convex. Antennce about as long 

 as the body, 11-articulate, joints 3-10 inwardly serrate ; they are 

 implanted on the forehead just before the front and inner margin of 

 the eyes ; there are no distinct fossae. Exjcs rotundate, very pro- 

 minent, quite lateral, free, finely facetted. Labrum large, pro- 

 minent, separated from the forehead by a short membranous space. 

 Mandibles but little exposed, bifid at apex. Pa/jji short, with securi- 

 form terminal joints, that of the labial broader than the maxillary. 

 Head small, exserted, without evident genal lines. Thorax much 

 narrowed and depressed towards the front, bisinuate at base, finely 

 margined laterally. Elytra a little broader than the thorax, nearly 

 four times its length. Legs elongate, simple ; tibias bispinose at the 

 extremity; tarsi elongate, filiform, joints 1-1 decreasing, fourth 



