108 



Thorax very large, almost circularly rounded, reflexed and pellucidly yellow in front, 

 deeply and closely punctured, basal line distinct, basal margin slightly sinuated, 

 with the angles produced and acute. 



Scutdliuii moderate, rounded at the apex, and punctured. 



Elijtra not broader, but nearly twice longer than the thorax, widest at the shoulders, 

 deeply and closely punctured, with the interstices smooth and rather shining, 

 sutural stria moderate, sides slightly margined, extremities rather attenuated, 

 and much rounded. 



Abdomen rufo-piceous, very little exposed. 



I^ef/ii moderate, yellow, with the femora piceous. 



J'ndrr partx rufo-piceous, vei-y deeply punctured throughout, and clothed with pale 

 hair. 



Habitat, Asia. Found in Japan by Mr. Lewis. 



Tribe III.— Sericoderina. 



Their truncate elj'tra and elongate posterior angles of their thorax readily 

 distinguish the Sericoderina from the other tribes of this famih', and the two 

 genera which it contains may be known from each other by the number of the 

 joints of their antennic. 



All the species of both genera resemble the Trichoptenif/idce so much in outward 

 appearance that they can only be superficially distinguished from them by the 

 antennjB and position of the head. 



Antenuas lO-articulatie ... ... ... ... Sericoderus. 



,, 11 -articulate ... ... ... ... Anisomeristes. 



ANISOMERISTES. PL III., B. 



Anisomeristes, Matthews, Ent. Mo. Mag. vol. xxii. p. 225, 1886. 

 Sericoderus, p. Reitter. 



Corpus obconicum, convexum, plus minusve pubescens, angulis posterioribus pi'onoti 

 productis, atque elytrorum apicibus subtruncatis. 



Caput modicum, totum sub pronoto occultum, ore deflexo, parte gulari convesa ; 

 oculis modicis. 



Anteniue (PI. III., B, fig. 7) geniculatie, undecim articulate, 1 magno, longo, 

 recurvato ; 2 primo breviori et minori, ovato ; 3 parvo, gracili ; 4 brevissimo, 

 transverso ; 5 magno, intus valde producto ; 6 quinto multo minori ; 7 per- 

 magno, intus longe producto ; 8 septimo multo minori, brevissimo, trans- 

 verso, intus acute elongate ; 9-11 valde incrassatis, clavam subfoliatam 

 formantibus. 



Palpi ma.rillares (PI. III., B, fig. 5, w) sat magni, 4-articulati, 1 minuto : 2 magno, sat 

 elongato, valde incrassato. ante medium latissimo, extremo recte truncate ; 

 8 brevi, subquadralo, transverso ; 4 conico, tertio parum longiori, pariter lato, 

 toto pilis instructo. 



Palpi labiales (PI. III., B, fig. 6, m) modici, sat longi, triarticulati, 1 exiguo; 2 longo, 

 8ubc3'lindrico, incurvato, extremo oblique truncate ; 8 brevi, quadrate cylin- 

 drico, extremo recte truncate, membrana operto, marginibusque ciliato, atque 

 seta longii incurvata externe instructo. 



Labrnm (Pi. III., B, fig. 8) breve, transversum, antice profundius emarginatum. 



'MandibuUe vPl. III., B, fig. 4) sat parvic, cestii dorsali valida firmatfe, ad aciem 

 bipartitse, parte superieri dentibus validis acutis armata, inferior! Integra. 



