288 Mr. J. S. Baly on the Phytopliaga. 



emarginate on their inner edge. Thorax twice as broad as long, sides 

 rounded, narrowed in front, anterior angles deflexed, all the angles 

 produced into a short minute tooth ; surface smooth, subremotely but 

 finely punctured on the disk, sides nearly impunctate. Scutellum semi- 

 ovate, obtuse. Elytra scarcely broader than the thorax, obovate, being 

 distinctly naiTowed from the shoulders towards their apex, the apex 

 itself regularly rounded; each elytron wdth eleven rows of distinct, 

 deeply impressed punctures, the first abbreviated, all the others, with 

 the exception of two or three nearest the suture, nearly obliterated on 

 the apical portion of the surface ; the punctures are also much smaller 

 at the extreme base ; below the basilar space on each elyti-on is a large 

 indistinct shallow fovea, the surface of which is slightly irregular. 



Rhyparida geniculata. 



H. anguste oblonga, convexa, nigra, subnitida ; capita, scutello, corporeque 

 subtus, obscure piceis ; abdomine, antennis pedibusque fulvis, illis ex- 

 trorsum fuscis, his genibus, tibiis anticis extus tarsisque piceis ; elytris 

 pimctato-striatis, striis subsulcatis, interspatiis pauUo convexis, femori- 

 bus simplicibus. — Long. 21^ lin. 



Hab. New Guinea. 



NaiTow^ly oblong, convex. Head finely subremotely punctured, 

 low^er edge of face deeply bilobed ; epistome nigro-piceous, iiTegularly 

 obcordate, its surface indistinctly concave, more deeply punctm'ed than 

 the upper portion of the face ; antennae slender, filiform, rather shorter 

 than the body. Tliorax nearly twice as broad as long at the base, 

 sides roimded, narrowed in front, strongly deflexed at the anterior 

 angles, all the angles armed with a minute tooth ; above moderately 

 convex, impressed on either side with a small but distinct fovea ; rest of 

 the surface smooth, impimctate. Scutellum semiovate. Elj'tra broader 

 than the thorax, oblong, scarcely uarrow^ed behind, apex acutely 

 rounded ; above convex, each elytron obsoletely excavated transversely 

 below the basilar space, and impressed with about eleven rows of di- 

 stinct punctures, the first abbreviated, those near the outer edge some- 

 what irregular ; all the stria? distinctly sulcate, their interspaces slightly 

 rounded. Legs fulvous, all the knees and the outer edge of the front 

 pair of tibife dark piceoiis, hinder tibire stained with pale piceous, tarsi 

 pale piceous. 



Genus CHRTSoriDA. 



Corjms subelongatum aut elongatum, valde conveximi. Caput exsertum ; 

 facte elongata, perpendiculari ; antennis gracilibus, filifonnibus ; oculis 

 subprominulis, intus emarginatis ; palpis gracilibus, mento apice valde 

 angulato-emarginato. Tliorax ovalis, basi et apice truncatus, latitudine 

 paullo longior, lateribus marginatis, dorso convexus. Elytra thorace 

 midto latiora, obo-\'ata, basi truncata, fortiter punctato-striata. Pedes 

 robusti, subelongati ; femorihns (pra3sertim anticis) modice inflatis, 

 elongato-ovatis, basi et apice angustatis, subtus spina brevi armatis ; 



