Strongly narrowed behind, and the elytra more strongly, closely and 

 rugosely punctured. The following is a short description of the 

 species : — 



Black, sl.ining, base of antenna pitchy, legs pitchy-testaceous. Head with two 

 strong roundish impressions between the eyes, strongly and closely punctured at the 

 base, more finely and diffusely in front. Thorax strongly transverse, broadest at 

 the anterior angles, which are rounded, sides rather strongly contracted almost in 

 a strai^^ht line to the posterior angles, which arc sharp right angles ; moderately 

 stron<.ly and closely punctured ; disc with two deep longitudinal impressions. 

 Elytm' broader than thorax and about twice as long, slightly broadened behind, 

 strongly, very closely and rugosely punctured. Hind body dull, extremely finely 

 punctured. Length, 2—2-5 mm. 



Bradfield : 



April nth, 1909. 



NOTES ON COSSONID^. 

 BY G. C. CHA.MPION, F.Z.S. 



The following uotes on various Cossonidcs were made during a 

 recent study of some of the Central-American genera belonging to 

 the sections Dryophthorides and Pentarthrides, and they are of suffi- 

 cient general interest to be published in this Magazine. 



Dnjophthorus Gorticalis, Payk. {Jymexylon,Y .).-! am unable to 

 detect any difference between European and N. American examples 

 of this species, when clean specimens of the same size are compared, 

 the insect being frequently so thickly coated with an earthy incrusta- 

 tion that the sculpture is partly hidden. The N. American species is 

 usually quoted as I), corticalis, Say, and it has been renamed D. 

 americanm by Bedel. From Wollaston's table of the genera {of. 

 Trans. Ent. Soc. Lend., 1873, p. 442), one would suppose that Dryoph- 

 tlwrus is replaced in the New World by the extremely closely alhed 

 genus Stenommatus ; but this, of course, is not the case, DryopUhorus, 

 Tn fact, being represented by a large number of species (17) m the 

 Hawaiian Islands, and two or three are known to me from America 

 north of Panama. D corticalis, according to Bedel, attacks beech, 

 alder, oak, pine, poplar, chestnut, &c., and it may yet be found in 

 Britain. 



Thalattodora insiynis, Perkins (1900), from the Hawaiian Is., =- 

 Dryotrihus mimeticus, Plorn (1873), from Key West, &c., Florida.- 

 The unique type of the Hawaiian insect was found in a log on the 

 beach at Kanai, and its presence there must have been accidental. I 



