1 866.] MR. H.W. BATES ON FORMOSAN COLEOPTERA. 351 



paulo convexo, punctato, cinereo, lateribus late fuscis ; elytris 

 subtrigonis, convexis, apice truncatis, supra lineatim grosse 

 punctatis, bicostatis, prope basin tuberculo magno compresso 

 apice cristato, fusco et cinereo variis, prope apicem macula 

 magna communi cinereo ; corpore subtus pedibusque fusco et 

 cinereo variegatis. 

 Long. 4-g- liu. 



The species which the present one most resembles in this extensive 

 genus is P. bigibbera (Newman) of the Philippine Islands. 



Praonetha kaleea. 



Elongato-elliptica, modice convexa, fusca, elytris lateribus plug a 

 magna et disco pone medium macula transversa cinereo-albis ; 

 capite tomento fulvo vestito, vertice late depresso ; anteyinis 

 corpore multo brevioribus, cinereo et fusco maculatis, articulo 

 basali infra valde planato, tertio et quarto rectis ; thorace 

 parvo, quadrato, fusco-cinereo nebuloso ; elytris oblongis, prope 

 apicem angustatis, apice ad suturam breviter oblique truncatis, 

 supra grosse et crebre sublineatim punctatis, bicostatis, tuber- 

 culo basali paulo elevato nigro ; corpore subtus pedibusque 

 fuscis, cinereo variegatis. 



Long. 3 lin. 



Ropica formosana. 



Elongato-elliptica, capite et thorace elytris angustioribus, cinereo- 

 fulva, passim punctata ; thorace lateribus paulo rotundato, 

 fulvo bivittato ; elytris oblique breviter truncatis, pone me- 

 dium utrinque macula discoidali pallide cinerea. 



Long. 4 liu. 



More elongate than the typical species, but of the same elliptical 

 general outline ; head and thorax of equal breadth and narrower than 

 the elytra. Closely punctured ; elytra more coarsely so, and clothed 

 with dingy ashy-fulvous tomentum, with two clearer tawny stripes 

 along the dorsal surface of the thorax, and a rounded discoidal ashy 

 spot on each elytron, a little after the middle. The elytra are elon- 

 gate-elliptical, and have the apical margins abruptly flattened out, 

 with the apex obliquely truncated. Antennae a little longer than the 

 body ; joints gradually diminishing in length From the fourth, and 

 of a uniform ashy brown. Body beneath and legs dingy ashy. 

 Claw-joint of the tarsi long and strong, with claws semidivergent. 



Sybra punctatostriata. 



Elongata, sublinearis, depressa, capite thoraceque grossissime sub- 

 dense punctatis, elytris punctato-striatis, stria suturaii valde im- 

 pressa ; sordide cinereo-fusca, thorace fulvo indistincte quadri- 

 vittato ; elytris lateribus fulvo strigatis, apice valde oblique sub- 

 sinuato- truncatis. 



Long. A\ lin. 



Belongs to the second section of the genus, as divided by Mr. 

 Pascoe, in which the elytra have the apex " wedge-shaped, with the 



