294 Mr. G. Lewis 07i 



striis 1-3 integris basi incurvatis, 4-5 apicalibus, suturali longi- 

 uscula utrinque abbreviata ; pygidio marginato, grosse et dense 

 punctate ; mesosterno stria transversa arcuatim impressa ; tibiis 

 anticis 4-dentatis. 

 L. 4| miU. 



Oval, somewliat oblong, convex ; the forehead widely 

 excavated, transverse stria fine and nearly straight; the 

 thorax, marginal stria rather fine, complete, and parallel to 

 the edge laterally ; the elytra, outer humeral stria fine and 

 complete, inner humeral wanting, 1-3 dorsal somewhat 

 strong and complete, all turn inwards at the base, but espe- 

 cially 2-3, the third is finest apically, 4 fine, apical, and a 

 little broken, 5 apical and punctiform, sutural shortened at 

 both ends, anteriorly only reaching the disk ; the propygidium 

 somewhat irregularly punctate; the pygidium is marginate 

 posteriorly and closely and evenly punctured; the prosternal 

 keel is very slightly widened behind the coxge and without 

 striae; the mesosternum is rather widely sinuous anteriorly, 

 with a short irregular stria behind each of the anterior angles, 

 and across the sternum is a remarkable arched stria which 

 reaches the base at the sides, and anteriorly it does not pass 

 very close to the sinuous edge. 



The peculiar incurved dorsal striae suggest the specific 

 name. Plutylister arcuatus, Lew., has a similer arched 

 mesosternal stria to that of the above, but otherwise it in no 

 respect resembles it. Pnchycrcerus nanus, Lew., also has an 

 arched mesosternal stria. 



Hah. Sarawak, Borneo {John EeiritC). One example. 



Nagelius, gen. nov. 



Body oblong-oval, somewhat convex ; head retractile, 

 mandibles convex above ; antennae, scape long and narrow, 

 nearly as long as the other joints togetiier, joints of funiculus 

 gradually enlarging to the club, club oval, antennal fossette 

 in the thoracic angle, large and deep (in these last three 

 characters the species are similar to those in Campylorhahdus) ; 

 thoracic lateral interstice somewhat elevated ; elytra, inner 

 humeral stria abbreviated at both ends ; pygidium perpen- 

 dicular, immarginate, and very slightly convex ; prosternum 

 bistriate; mesosternum very feebly sinuous, almost truncate; 

 tibiae broad and compressed, anterior tarsal groove sinuous. 



Type, limatulus, Lew., in the Kational Collection, of which 

 figures are given here. 



This genus is founded to receive tliree Oriental species 

 hitherto included in the New- World genus Psiloscelis. The 



