505 



few were seen and no beetle was obtained, but it is possible 

 that they may have been made by this large A^esithniysus. The 

 heavy hind body and more cylindrical form of A^esithinysits 

 have depru-ed the genus of the elegant shape of Plagithmysus, 

 and one could imag"ine the insects to be much less active than 

 the latter. 



Annobiides. 



The Annobiid here described belongs to the very difficult 

 genus Xylctobius in a wide sense, but the many species described 

 by me are in my opinion not always congeneric and the present 

 species is an abnormal one and unlike any known to me. 



Xyletobius timberlakei sp. n. 



Dark fuscous, the pronotum at the sides and posteriorly (and 

 sometimes entirely excepting the disc) the apex, sides (more or less) 

 and the basal margin of the elytra evidently red. The antennae, 

 under side of the whole thorax, the coxae, femora and tarsi also red 

 or reddish testaceous, the tibiae and abdomen darker, mostly dark 

 fuscous. 



Remarkable for its long cylindrical form as compared with most 

 species. Eyes very large, in a front view of the face these together 

 are fully as wide or wider than the space between them. The antennae 

 are very long, the small second joint distinctly angulate beneath or 

 with the lower apical angle a little produced in some aspects, thir<I 

 triangular and hardly as long as its greatest width, fourth, fifth and 

 sixth increasing in length and becoming more slender, distinctly 

 omarginate at the apex, seventh strongly elongate and evidently less 

 wide than the sixth, the apical joints are wanting, except in one case 

 where the antennae lies beneath the body, and in this the tenth 

 joint appears to be more than twice as long as wide. Pronotum at 

 the sides very widely explanate or flattened (at the hind margin the 

 flattened parts are together as wide as the space between them) per- 

 ceptibly emarginate in the middle, anteriorly, finely but distinctly 

 margined both in front and behind, distinctly emarginate on each side 

 between the hind angles, which are rounded, and the middle. Seen 

 from above the pronotum has a distinct pattern formed of golden tomen- 

 tum in the middle and other spots or marks external to this on each 

 side. The elytra are fully three and a half times the lengtli of the 

 pronotum, and are notably compressed at the siiles, so that a great 

 subtriangular area appears bare on each wing case, the apex of each 

 triangle coming rather near to but not reaching the suture at about 

 the middle of the length of the elytra. From each apex an oblique 



