198 



CANAKIAN COLEOPTERA. 



Fcem. palponun maxillarium articulo iiltimo subcyliudrico-ovali. — 

 Long. Corp. lin. 6|. 



Habitat Canariam Grandem, in regione " El Monte " dicta capta. 



In its scutellum having only three or four scattered punctures at 

 its extreme base and the merest rudiments of two very abbreviated 

 obliquely impressed hues behind, the 0. integra is somewhat inter- 

 mediate between the last Section and the present one ; and did it 

 not possess one or two decided structural peculiarities of its own, I 

 should have been unwilHng to erect an additional species from the evi- 

 dence afforded by a single specimen, in such a variable groiip. But 

 since it has really a few very remarkable characters, which I have no 

 reason to regard as accidental, and since its Jiahitat-island, moreover, 

 is different irom. that of any of the remainder, I have been almost 

 compelled to treat it as distinct. 



The 0. integra differs from the last species and the following one 

 in the above-mentioned sculpture of its posteriorly rounder (or more 

 obtuse) scutellum, in its more deeply punctured surface, in the last 

 joint of the maxillary palpi of its females being more strictly ob- 

 long, and blunter at the tip (the corresponding articulation in the 0. 

 castanea being regularly acuminated, or conical), and in its two front 

 tibiiB having their outer edge almost entire — the teeth being nearly 

 obsolete. Its elytra are not quite so rufescent as those of the 0. 

 hipartita ; and its head, prothorax, and scutellum are much less dark 

 — being, in fact, scarcely obsciirer than the elytra. The unique ex- 

 ample from which the above diagnosis has been compiled was captured 

 by myself, during the spring of 1858, in the region of El Monte in 

 Grand Canary. 



315. Ootoma castanea. 



0. fere ut 0. fuscipennis, sed corpore subtus ssepius paUidiore ; clypeo 

 vix breviore, a fronte Hnea recta distinctiore diviso, antice paulo 

 magis sinuate, ad latera minus ampliato-recurvo (ergo mox ante 

 oculos minus angulato-exstante) ; prothorace paulo densius punc- 

 tato, per basin ipsissimam minus evidenter marginato ; elytris stria 

 suturali plerumque levius impressa ; tibiis anticis \dx obsoletius 

 dentatis. 



Mas palporum maxillarium articulo ultimo magno lato sed minore et 

 breviore quam in 0. fuscipenni necnon magis regulariter ovaH. 



Fcem. palporum maxillarium articulo ultimo regulariter conico (quare 

 apicem versus magis acuminato quam in 0. fuscipenni). 



Variat colore a pallido-castaneo usque ad fusco-piceo. — Long. corp. 

 lin. 4|-6|. 



Melolontha castanea, BrvlU, in Webb et Berth. (Col.) 60 (1838). 



