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8 



BHTNCHOPHOEA. 





are particularly well represented in such Oceanic islands as St. Helena, Madeira the 









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Canaries, the Hawaiian group, New Zealand, &c, and some of them are recorded as 

 having been carried immense distances across the ocean in floating drift-wood. 



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Sect. Dryophthobides. 







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Dryophthorides, Lacordaire^ Wollaston. 



The species of this section are easily identified by their 4-jointed funiculus, the 







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5*jointed tarsi, the strongly unguiculate tibiae, and the peculiar silky pruinosity of 

 the surface of the body. 



DRYOPHTHORUS. 



Dryophthorus, Schonherr, Cure. Disp. Metli. p. 332 (1826); Gen. Cure. iv, p. 1088; Lacordaire, 



Gen. Col. vii, p. 322; Wollaston, Trans. Ent. Soc. Lond. 1873, pp. 434, 442, 506. 



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A very widely distributed genus and particularly numerous in species in the northern 



Pacific islands*, no less than seventeen being recorded by Mr. Perkins from the 

 Hawaiian group. The holarctic D. corticalis, Payk. {lymexylon, F. ? americanus, Bed.), 



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is said to attack oak and alder. 



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l. Dryophthorus quadricollis, sp. n. (Tab. I. fig. 10.) 



Moderately elongate, opaque, black, the scape of the antennae and the tarsi ferruginous, the surface with a 

 greyish, sericeous pruinosity. Head closely punctate ; eyes transverse, small, depressed, coarsely 

 facetted ; rostrum Very stout, moderately long, slightly dilated opposite the points of insertion of the 

 antennse, closely punctate, smooth, bare, and shiniug at the tip, the antennas inserted towards the base. 

 Prothorax as long as broad, subquadrate, abruptly constricted in front; closely punctate. Elytra 



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comparatively short, widening to about the basal third and narrowed thence to the apex, which is some- 











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what produced ; coarsely seriate-punctate, the interstices raised, about as wide as the punctures on the 





disc and becoming narrower towards the sides. 

 Length 2l-2f, breadth 1 millim. ( $ ?) 



Hab. Guatemala, Totonicapam 8500-10,500 feet (Champion). 





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Dryophthorus COCOSeilSlS, sp. n. — Oblong-ovate, opaque, nigro-pieeous or piceous, the antennal club 





ferruginous ; the surface (when cleaned) clothed with a very fine greyish pruinosity, and the elytral 

 interstices each with a row of extremely minute scales. Head and rostrum densely, rugosely punctate ; 

 rdstrum stout, parallel-sided, slightly constricted at the base ; antennal scape widened from near the 

 base ; eyes large and depressed. Prothorax about as long as broad, strongly constricted in front, coarsely, 



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densely punctate. Elytra much wider than the prothorax, rounded-subtriangular ; coarsely seriate- 

 punctate, the interstices raised and much narrower than the punctures. Tarsi very short. 



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Length l-J-2^-, breadth |-1 millim. 

 Hab. Cocos I. 



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Sent in abundance (with a species of Anchonus) by the late P. Biolley, the specimens labelled as 

 been found in January 1902. This island belongs politically to Costa Eica,but it is situated so far from the 



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Pacific coast that the locality has not been included within the limits of this work. The species may be 

 known by its comparatively short, subtriangular elytra, with narrow raised interstices, the short tarsi, and the 

 broad scape of the antennae. 





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