192 NORTHERN ZOOLOGY. 



Prothorax short, subglobose, anteriorly elevated and rough with points. 

 Elytra substriated, unarmed at the tip in both sexes. 



Geoffroy having long since separated two Xylophagous genera from Dermestes Linn, under the 

 names of Bostrichus and Scolytus,$ I follow Latreille in adopting his nomenclature in preference to 

 that of Fabricius and Herbst ; the first naming the Bostrichus of Geoffroy Apate, and his Scolytus, 

 Hylesinus ; and the last distinguishing the latter genus by the uncouth appellation of Ekkoptogaster . 



I have here restricted the name of Apate to those Xylotrypa which agree in their characters 

 with Apate limbata Fab. (Dermestes domesticus Linn.) which I regard as the type of the genus. 



It appears intermediate between Bostrichus Geoff, and Tomicus Latr. From the former it 

 borrows its subglobose prothorax, rough anteriorly with sharp points or denticles, and from the latter 

 its antennas terminating in a solid compressed knob. 1 It differs from both in its bipartite eyes 

 connected only by a few lenses, and by the concave forehead of one sex. 



(256) 1. * Apate bivittata. Two-striped Apate. 



A. (bivittala) picea ; prothorace rufcscenli, posticc rugulis transversis, antice denticulis, scabro ; elyiris vitlis duabus apice 



conniuentibus pedibusque luteis. 

 Two-striped Apate, piceous ; prothorax reddish, posteriorly rough with transverse wrinklets, anteriorly with denticles ; 



elytra with two luteous stripes united at the tip ; legs luteous. 



PLATE VIII, FIG, 5. 



Length of the body 1| line. 



A pair taken in the Expedition. 



DESCRIPTION. 



Very near A. domestica (A. limbata F.) but distinct. Body piceous or nigro-piceous, cylindri- 

 cal; underneath with some scattered pale hairs. Head rough with minute elevations or granules; 

 nose terminating in a transverse ridge ; antenna? testaceous with a very large knob : prothorax sub- 

 globose, reddish, rough behind with numerous transverse rugosities ; before with sharp points or 

 denticles : elytra with several rows of punctures, and two luteous stripes which unite at the apex 

 of the elytrum ; or perhaps it might be better to say, luteous, with two piceous stripes, one of the 

 disk and the other of the side, but not reaching the apex : anus and legs testaceous. 



In the other sex the front, or rather face, is hollowed out into a concavity ; the prothorax is black 

 anteriorly, and less rough from rugosities and points. 2 



9 Geoff. 7ns. i, 301, 309, comp. Linn. Fn. Suec. 410—421. 

 1 In Tomicus tijpograplms, under a powerful lens, the knob appears annulated, but in the smaller species this character is 

 scarcely to be detected. 



2 Plate VIII, Fig. 5, a. 



