66 



PSYCHE. 



[June 1900. 



arranged in approximate rows, while 

 the elytra (type) are plainly narrowed 

 towards the tip. These characters 

 seem to be sufficient to exclude it from 

 the Scolytidae, and to point to the 

 Ptinidae as the family to which it may 

 more properly belong. If so, it would 

 come close to your Anobiu?n ovale and 

 Anobium deceptuni (Figs. 1 and iS, 

 PI. 8, Tert. Ins. N. A.) with which the 

 elytral punctures agree almost exactly. 

 By reference to the descriptions and 

 figure of PolygrapJnis wortheni 

 Scudd. (Tert. Rhynch. Col. p. 158, 

 PI. XII, Fig. 13), it would seem that 

 this, too, would belong to the same 

 division of the Ptinidae, since the elytra 

 narrowing towards the tij5, the form of 

 tlie prothorax, and the rather coarse, 

 confused punctures of the elytra would 

 remove it from Polygraphus. 



5647. Hylesimis extractiis Scudd., 

 Type. " Florissant, Col." This is 

 a true Scolytid, and belongs in the 

 Hyleshiides, which, according to my 

 present arrangement includes sub- 

 groups Phheotribi, Polygraph/., Hy- 

 hirgi and Hylesini. 



The granulated snrface of the pro- 

 thorax, referred to in the description, 

 evidently represents slightly rugose 

 dense punctures, especially on the side. 

 The elytral sculpture is obscure, yet it 

 plainly indicates an elevated rugose 

 base common to the Hylcsiiiides. The 

 first four abdominal segments are, upon 

 close examination imder the microscope 

 {\ inch objective), quite clearly de- 

 fined, and show that they gradually 

 decrease in length from the first to the 



fourth, as in Polygraphus, but quite 

 ditlerent from Hylesinus, in which the 

 first and second are longer, the third 

 and fourth short. Upon careful exam- 

 ination, it is also noted that the eyes 

 are divided and close to the base of tiie 



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Hvlesimis extractus Scudd. 



mandibles, as in Polygraphus. It, 

 therefore, appears to belong near Poly- 

 giaphus, but probably represents an ex- 

 tinct or undiscovered genus. 



Your (806S) Cytihis dorniiscetis., 

 Plate I, Fig. I, Tert. Rhynch. Col., 



