Rev. H. Clark on Dcjean's Genus Ccelomera. 261 



sequans, margine anteriore valde excavato, angulis anticis rectis, 

 lateribus subrotundatis, marginatis, angulis posticis obsoletis, basi 

 transversa, disco leevi. Scutellum triangulare, leeve. Elytra parallela, 

 brcvia, robusta, thorace paulum latiora, punctata (punctis confusis, 

 insequalibus) ; antenna vel filiformes vel incrassatse ; in S penitus 

 corpus ipsum longitudiue sequantes, ct ad basin valde robustse, com- 

 pressre, sensim versus apicem attenuantur ; art. 1° valde ad apicem 

 ampliato, 2° et 3° minoribus, brevioribus, et subsequalibus, 4°, 5° et 

 usque ad 1 l m longitudine subsequalibus, latitudine sensim attenuation- 

 bus ; in 5 antennae filiformes ; pedes robusti, satis breves, femoribus 

 subincrassatis, tibiis versus apicem robustioribus et ad insertionem 

 tarsorum subtus excavatis ; unguiculi ab infra breviter utrinque bi- 

 dentati. 



This diagnosis is based on a Chilian species, Ccelomera mutans 

 of cabinets, which is very different from all allied groups, not 

 only by reason of its shorter and more robust form, but also by 

 the largely developed basal joints of the antennas in the male. 



P. mutans. 



P. et colore et maculis incertus, flavo-viridis vel fuscus, thorace et 

 elytris, vel neutro vel utroque, nigro maculatis ; caput longitudi- 

 naliter oblique foveolatum, rufo-flavum ; thorax rarius punctatus, 

 vel flavus vel nigro maculatus, maculis quatuor (duabus mediis 

 et una utrinque postmedia laterali) ; scutellum impunctatum ; 

 elytra punctis subordinatis minutis, plerumque flava, sed ali- 

 quando maculis nigris juxta basin transverse ordinatis, maculisque 

 etiamjuxta apicem ; antennas nigrae, flavo annulatse ; corpus subtus 

 in S abdominis apice fortiter ad medium foveolato, fuscescens, 

 abdomine aliquando rufo ; pedes rufi, tibiis et tarsis nigris. 



Long. corp. lin. 3-4 ; lat. lin. l|-2. 



The head-quarters of this sr)ecies is Chili, where it would 

 appear to be abundant ; it is widely distributed. I have re- 

 ceived specimens from Brazil and also from Bolivia. 



Genus VIII. Pachytoma. 



Robusta, brevis, parallela. Cuput breve, verticale. Palpi maxil- 

 lares graciles, elongatuli. Thorax declivis, elytris paulum at- 

 tenuatior, angulis anticis prominulis, lateribus paulum curvatis, mar- 

 gine basali subsinuato ; disco lsevi, punctate Scutellum triangulare, 

 apice truncate Elytra brevia, robusta, confuse punctata. Antenna 

 filiformes, robustse, art. 1° longissimo, 2° brevi, 3°, 4° et 5° subaequali- 

 bus. Pedes robusti, unguiculis pectiuatis. 



1. P. Westermanni, Dej. Cat. 



P. e majoribus, fusca, antennis, pedibus et corpore subtus nigris ; 

 caput longitudinaliter foveolatum, punctatum ; thorax crebre et 

 fortiter punctatus ; scutellum nigrum ; elytra crebre punctata ; 



