AUTHEOPOD FAUNA OF THE WEST INDIES. 509 



6'. Keels of the 2nd segment on the 



same level as those of the 1st and [nom. nov.t 



3rd Odontopeltis, 



Ctclodesmus porcellanus, sp. n. (PL XXXIX. figs. 1, 1 a.) 



2 • Colour entirely white, like porcelain. 



£odi/ smooth. 



Sead with deep frontal sulcus. Mrst tergite with its anterior 

 border lightly emarginate, elevated, its inferior (anterior) angles 

 less than right angles, the superior aagles obtusely rounded ; the 

 2nd segment arched as in O. aztecus ; the 3rd segment very large, 

 the anterior border of the lateral portion widely convex, the 

 posterior border deeply concave ; the 4th segment laterally about 

 half the width of the 3rd. The rest of the segments as in C. 

 aztecus, but with the posterior border of the keels of those in the 

 posterior half of the body with a deep and conspicuous notch. 



Length 9 mm. 



Locality. Jamaica. 



This species may be at once distinguished from the Mexican 

 C. aztecus, the only other form of the genus, by the notch on the 

 posterior border of its keels. In aztecus this border is entire. 



*CETPTODESMirs LAQUEATFS, Kavsch, Mitth. Munch, ent. Ver. 

 1880, p. 142. 



Locality. Cuba. 



" Pallidus vel infuscatus, unicolor, dorse subconvexo, seg- 

 mentis dense sed plane granulosis, segmento primo subglabro, 

 antice rotundato, piano, radiis imperfectis impressis supra ornato, 

 postice convexo, ruguloso, antennis fuscis, pedibus pallidis. 

 Long. Corp. 10-12 mm." 



*Ceyptodesmus oenamentatfs, KarscJi, loc. cit. p. 142. 



Locality. Cuba. 



" Puscus, dorso alte convexo, carinis lateralibus plauis, seg- 

 mentis supra granulis subacutis, in series quatuor longitudinales 

 dispositis interstitiisque granulis minoribus sparsis armatis, alls 

 postice et extus sublobatis, segmento primo margine antico lobato 

 antice piano, dorso alte convexo, granulis crassis subacutis in- 

 ordinatis vestito. Long. corp. ca. 6 mm." 



These two descriptions speak for themselves. They are 

 practically valueless for the identification of the species. 



^ t For Bhacophorus, 0. Koch (1847), preoccupied iu 1827 for a frog. 



