South-American Coleoptera. 289 



approaching that of Strongylaspis. It differs from the latter 

 in the following points : — Eyes with scarcely a trace of emar- 

 gination in front. Antenna? reaching to about the middle of 

 the elytra ; the apex of the third joint and the following joints 

 longitudinally rugulose, opaque. Thorax trisinuate in front. 

 Scutellum not convex, rounded posteriorly. Elytra each 

 with four costa3. Abdomen shining. Prosternal process 

 scarcely arched, produced posteriorly. 



The specimen from which these characters are taken is a 

 female. 



Protorma scabrosa, n. sp. 



Ferrugineo-fusca, rugosa ; thorace transverso, antice oblique an- 

 gustato, lateribus crenulatis, ante basin dente valido armatis, 

 dein oblique sinuatis, et juxta basiu dente parvo acuto ; elytris 

 rugosis, singulis costis quatuor. 



Long. 17 lin. 



Dull rusty brown, the head and thorax rather darker ; the 

 body beneath pitchy black. Head, thorax, and basal joint 

 of the antenna? densely and strongly rugose. Thorax not 

 quite twice as broad as long, not very convex, very obliquely 

 narrowed anteriorly, the side crenulate, the little teeth having 

 a tendency to arrange themselves in pairs ; the strong tooth 

 before the posterior emargination not so sharp as in Navosoma 

 scobinatum, the emargination deeper, with a small tooth just 

 before the base ; the base sinuate on each side, rather di- 

 stinctly lobed in the middle. Scutellum finely rugose, gently 

 impressed in the middle. Elytra at the base as wide as the 

 widest part of the thorax, gradually becoming broader to the 

 posterior two thirds, then arcuately narrowed towards the 

 apex ; the sutural angle with a very small tooth, densely and 

 rugosely punctured, the base rugose ; each elytron with four 

 costse, the first and second not extending to the apex, the 

 third not so conspicuous, shorter than the others ; the fourth 

 sublateral, commencing below the shoulder and extending 

 nearer to the apex than the others ; epipleural fold with 

 about the basal half channelled. Metasternum and para- 

 pleura densely and rather finely punctured, finely pilose. 

 Abdomen shining, rather finely and not very closely punc- 

 tured ; the two basal segments somewhat opaque and more 

 closely punctured towards the sides. The legs very rugose, 

 the posterior femora above rather less so. Tarsi with the 

 basal joint about one third longer than broad, much shorter 

 than in N. scobinatum. 



Hab. Sarayacu. 



