338 ^Ir. D. Sliarp's Contrihutions to the 



segments less closely punctured towards their hind margins, 

 so as to be a little shining. 

 Tapajos; a single individual. 



2. QHdodactijlus aiiceps, n. sp. IJrunneus, opacus, 

 dense pnnctatus; thorace minus clongato, basi rotundato, 

 antcnnis pedibusque tcstaceis. Long. corp. 2^ lin. 



Antennae yellow, moderately long, slender; 2nd joint 

 longer than the very slender ord joint; joints 4 — 11 cacli 

 yery slender at the base, and longer than broad. ]\Iaxil- 

 lary palpi yellow, last joint less produced inwardly than in 

 G^. errans. Head small, narrower than the thorax, closely 

 and rather coarsely but not deeply punctured, the interstices 

 slightly shining. Thorax about as long as l)r()ad, with 

 the base rounded, so that the hind angles have disaj)peared ; 

 it is slightly lobed in the middle in front, the front angles 

 nearly right angles; it is densely punctured, the punc- 

 tures on the middle shallow, subocellate, the scidpture at 

 the sides and base granular. Elyti-a a little longer than 

 the thorax, dull, densely punctured with an asjierate 

 punctuation. Hind body slender and elongate, pointed at 

 the extremity, densely pinictured. Legs rather long, 

 yellow, front tarsi elongate and (for the group Pinophilini) 

 narrow. 



Tapajos; a single individual. It is, I believe, a male, 

 but the extremity of the hind body is retracted, and I 

 have damaged the specimen in trying to withdraw it. 



O^DICIIIRUS. 



This genus has not been registered as found in the New 

 World, but my collection contains six or eight species 

 fi'om South America. According to a note of JNIr. Bates 

 the GE. optafus here described is found on trees. 



1 believe the Elijtrohceus geniculatus, Sahlberg, from 

 description (Act. Soc. Fenn. 2, p. 802), to be an insect of 

 this genus, the characters mentioned as separating the 

 genus from G^dicliirus apjwaring to me veiy indefinite. 

 Amongst these, Sahlberg lays stress on the last joint of 

 the antennte terminating in a spine. On examining the 

 European (E. p(P.derinus, I find that in some individuals 

 the antennie end in a short spine or seta; and of the 

 three specimens I possess of G£. optatus, the two females 

 have the extremity of the antenna; truncate, while in tlie 

 male these organs are terminated by a slender but rather 



