On new South- American Coleoptera. 285 



spinose polyparies are not uncommon even in the highest 

 Xrlenkiln. 



The Retiolitidas are among the rarest of the Glenkiln fossils 

 in Britain and America, where the lattice-like genus Clathro- 

 graptus, Lapw., is all that represents the family upon this 

 horizon. In Sweden, however, the extraordinary genus Gym- 

 nograptus of Tullberg, which points in the direction of the 

 ancient Trigonograptus, Nich., is so abundant in strata hardly, 

 if at all, inferior to the lowest Glenkin beds as to give its name 

 to the containing zone. 



The zoological features of this British Glenkiln zone and 

 its Irish and American representatives are so unique, and at 

 the same time are so invariable throughout its extraordinary 

 range, that the Australian strata with Coenograptus gracilis, 

 Hall, &c, may be assigned with tolerable certainty to this 

 zone, which, like the older Arenig and Lower Llandeilo 

 zones, will probably be proved to have had a geographical 

 extension that was worldwide. 



[To be continued.] 



XXVIII. — New South- American Coleoptera, chiefly from 

 Ecuador. By Charles 0. Waterhouse. 



The species described in this paper were, with a few excep- 

 tions, collected by Mr. Buckley in Ecuador, chiefly in the 

 neighbourhood of Chiguinda and Sarayacu. The specimens 

 are all in the British-Museum collection. 



Cicindelidae. 

 Oxychila glabra, n. sp. 



Nigra, nitidissima, palpis antennisque testaceis, his basi nigris, sin- 

 ' gulis elytris' V flavo notatis, femoribus rufis apice nigris, tibiis 



tarsisque testaceis. 

 J . Long. i) lin. 



A glabrous species resembling 0. nigro-amea, Bates, but 

 with shorter elytra and narrow labrum. Head lightly trans- 

 versely impressed behind the eyes, with numerous, short, 

 longitudinal wrinkles forming a band between the eyes. La- 

 brum narrowed and acuminate anteriorly, with no distinct 

 denticulations laterally. Palpi pale testaceous. Thorax 

 rather shorter than in 0. nigro-amea, rather more constricted in 



Ann. & Mag. N. Hist. Ser. 5. Vol. v. 20 



