HISTERID/E. 123 



as forming an osculant group between the Lamellicornia, and the Necrophaga and 

 Philhydrida, rather than as belonging to the former, and likewise when I regard 

 the coprophagous Histers as connected with the coprophagoas, and thelignivorous 

 ones with the lignivorous, Lamellicorns : so that they appear to diverge towards 

 the two extremities of that vast primary group ; for that the Lucanidve are most 

 intimately connected not only with Trogosita and its cognate genera, but by means 

 of Prionus and some new genera, with the great Capricorn group, I hope to make 

 evident hereafter. 



I must observe here, however, that there is a certain group of the Histeridce 

 which appears to make a near approach to the Scolytidce : the group I allude to 

 has been formed into a genus, under the name of Tryponceus by Eschscholtz, 1 

 formed of three Bostrichi of Fabricius, viz. B. thoracicus, B. proboscideus, and 

 B. pustulatus; which indicates that a road may be formed from the lignivorous 

 Histeridce towards Scolytus, &c. 



LXV. Genus HISTER. Linn. 



(172) 1. * Hister' Paykulii. PaylmlVs Hister. 



H. ( Paykulliij atcr, nitidus, cubitis tridcntatis : dente exteriori Jisso ; prothortice vtrinqne bisiriato : stria exteriori abbreviata : 

 eb/tris striis sex discoidalibus, nempe tribus externis distinctis inteyris, tribusque inlernis ex punctis covflads, 

 abbreviatis. 



Paykull's Hister, black, glossy, cubits armed with three teeth, the outermost cleft : prothorax with a double furrow on 

 each side, the exterior one abbreviated : elytra with six discoidal furrows, the three external ones entire and 

 distinctly drawn, the three internal ones abbreviated and composed of punctures. 



Length of the body 31 lines. 



One specimen taken in the Journey from New York to Cumberland-house. 



DESCRIPTION. 



Body black, glossy. Head circumscribed by a rather deeply ploughed furrow; antenna? piceous with 

 a pale knob; mandibles longer than the head: prothorax rather wider behind, seemingly quite 

 smooth, but under a strong magnifier it appears thickly covered with very minute lightly impressed 

 punctures ; it is circumscribed on all sides, by a deepish furrow, between this furrow and the 

 lateral margin is another abbreviated one less impressed; elytra besides a distinct marginal furrow 



1 Zoohgischer Atlas Erster Heft, 10, 11. 



R 2 



