Capt. P. P. King's South American Coleoptera. 445 



Length 7^ lines, breadth 5. 



Cinereous, all the protuberances black : head with a cleft tubercle in front ; clypeus slightly 

 emarginate : thorax very uneven, the sides indistinctly crenated, with a deeper notch 

 forming a semicircular lobe at each angle behind ; the posterior margin very convex, 

 but not lobed ; the front raised, forming 2 ridges, which are broken into 2 small ele- 

 vations in the centre ; on each side are 2 others and 4 along the base : . elytra sprinkled 

 with innumerable little black buttons, also 3 or 4 rows of large shining black ones, 

 having a faint channel on each, with lines of smaller buttons between them and round 

 the costal margin, and 2 more regular rows on either side of the suture : anterior tibiae 

 with 2 minute indistinct teeth on the outside near the middle, the others rough. 



This insect, from Valparaiso, might be mistaken for a large specimen of the 

 following, but it is readily distinguished by the hinder thoracic angles not 

 being excised. 



67- Trox pilularius, Germ. Coleopterorum Species, vol. i. p. 1 13. 



From Rio Janeiro, but apparently not abundant : the 4 lines of buttons on 

 the elytra are large and very elevated. 



*68. Trox lachrvmosus. Curt. 



Cinereus nigro mixtus, thorace parvo insequali, elytris amplis elongato-ovatis 



punctato-striatis lineis 4 tuberculorum magnorum 5 parvorum notatis. 

 Length from 5 to 6 lines, breadth from 3 to 4. 



Ash-coloured, the elevations black ; head and thorax punctured : clypeus not large, with a 

 thickened margin and 2 raised oval tubercles on the crown : thorax small, the margins 

 as well as the clypeus edged with short black hairs, the base slightly produced at the 

 scutel ; 2 large elevations near the disc with a little pit in each, one on either side, and 

 4 along the base : elytra nearly twice as broad and 4 times as long as the thorax, the 

 buttons not very elevated : striae of elytra punctured, and between them, except at the 

 outer margin, are 4 lines of large and 5 of minute black shining buttons, and there are 

 2 large humeral elevations : anterior tibiae short and slightly sinuated outside. 



This species is common at Valparaiso, and is similar in form and propor- 

 tions to T. suberosus. Fab. ; the small thorax, punctured elytra, with the costal 

 margin free from buttons, and above all the large high and bare shoulders, 

 distinguish this species from ics congeners. 



