22 Mr. T. V. Wollaston on the Goleoptera of St. Helena. 



island. It is veiy much smaller than the last species, but 

 rather larger than either of those which follow ; and it may 

 be further recognized by its black, shining, and comj^aratively 

 unpubescent sui-face, by its strongly and closely pmictured 

 head and prothorax (the subbasal line of which is raised, as 

 in the two following species, and hardly at all curved), and by 

 the convex interstices, deep crenate stria3, and numerous bright 

 red patches of its nearly glabrous elytra. 



55. Notioxenus dimidiatus, n. sp. 



N. subovatus, viridi- (immatiirus piceo-) seneus, nitidus, pube grossa 

 demissa cinerea parce vestitus ; capite profunde rugoso-punctato ; 

 prothorace in disco antieo levius parcitisque punctato, Hnea sub- 

 basali subcurvata et valde elevata ; elytris grosse striato-punc- 

 tatis, punctis striisque (suturali profundiore basi evanescente ex- 

 cepta) in dimidia parte postica evanescentibus, margine basali 

 ipsissimo rugose elevato ; antennis pieescentibus, apicem versus 

 pedibusque (tibiis versus basin rufeseentioribus exceptis) nigres- 

 ceutibus. 



Variat immaturus colore omuino pallidiore, etiam jenescenti-ferru- 

 gineo, elytrisque fascia media dentata obscura nigrescentiore 

 oniatis. 

 Long. corj). lin. 1|-1|. 



This species appears to be a little more ovate, and perhaps 

 also (on the average) a trifle smaller, than the N. riifopictus j 

 and it is abundantly distinguished by its greenish-brassy, 

 shining, and coarsely but sparingly pubescent surface, by its 

 greatly elevated and evidently curved subbasal prothoracic 

 line, and by the stride and largely developed punctures be- 

 coming evanescent on the posterior half of its elytra. One of 

 the two specimens now before me (and which were taken in 

 St. Helena by Mr. Melliss) seems to be immature ; for it is 

 altogether paler (indeed well-nigh Eeneo-feriniginous) , and 

 there are indications on its elytra of an obscure, central, den- 

 tate, blackish fascia, which the darker sui-face of the other 

 example appears to render quite untraceable. 



6Q. Notioxenus alutaceus, n. sp. 



N. viridi-aeneus, subnitidus, alutaceus (sed baud punctatus), pube 

 demissa fulvescente parce vestitus ; prothoracis linea subbasali 

 subcurvata elevata ; elytris postice magis abbreviatis, striis (sutu- 

 rali profunda basi evanescente excepta) obsoletis ; antennis piceis, 

 basi rufo-testaceis ; pedibus pieescentibus, tibiis (tarsisque ad 

 basin minus evidenter) dilute rufo-testaceis. 



Long. corp. lin. vix 1|. 



Judging from the single example now before me, and which 



