GEORGE M. GREENE 255 



joints are obviously lolted beneath, as they are in Xyletinus sericeus, Say. 

 The antenna; of this hist insect hardly warrant its being severed from the genua 

 Anobium; they resemble considerably those of our peltatum, but the last three 

 joints are not so distinctly elongated." (This is 5292 [Henshaw], Xyletinus 

 peltatus Harris.) 



Page 76. " 14. Hister obtusatus. Plate I, fig. 3. 



"Black, immaculate; head with a transverse stria; thorax with two entire 

 lateral stride; each elytron obsoletely indented in the middle of the base, trans- 

 versely punctured at tip, with an entire marginal, oblicjue abbreviated humeral, 

 four entire and two abbreviated dorsal stri*; anterior tibiie six-toothed on the 

 outer edge. 



" Length 36 hundredths, breadth 2-4 hundredths of an inch. 



" H. unicolor ? F. Say. Journ. Acad. Nat. Sc. vol. v. p. 33. 



"Halsey's Collection, No. 83. 



"Body oblong oval, very obtuse before and behind, polished black, immacu- 

 late. External thoracic stria not abbreviated, but imiting behind with the 

 inner one. Marginal and abbreviated oblique humeral striic of the elj-tra very 

 distinct; within the latter four dorsal stria?, the third of which has an obsolete 

 indentation near its origin; the fourth beginning a little further from the 

 base than the [page 77] third; the subsutural stria obsolete from the base nearly 

 to the middle; the stria between it and the fourth dorsal has an arcuated rudi- 

 ment near the base of the elytron, is discontinued from thence to behind the 

 middle, and is abbreviated before the termination of the other dorsal striiE. 

 A transverse series of obsolete punctures connects the posterior terminations 

 of the second dorsal and subsutural stria?. Last abdominal segment very 

 obtusely rounded, and, with the penultimate, exposed, and densely punctured. 

 Anterior tibia? six-toothed on the outer edge, the terminal tooth emarginated, 

 and a minute tooth on the truncated tij) just witliin the emarginated tooth. 



" Is not this the si)ecies named unicolor, F. by Mr. Say, in his remarks on //. 

 depurator in the Journal Acad. Nat. Sciences? The unicolor is described by 

 Fa})ricius as having the anterior tibia' tridentate, and the elytra obliquely 

 tri-striated; characters which do not justify us in applying the same name to our 

 insect, which agrees no better with the unicolor described by M. Boitard in the 

 ' Manuel d'Entomologie.' " (This is 3480 [Henshaw], H. interruptus Beauv.) 



Page 77. "15. Trox capillaris, Say. T. capillaris, Say. Journ. Acad. 

 Nat. Sc. vol. iii. p. 238. Halsey's Collection, No. 97." (This is 5622 [Henshaw], 

 T. cajnllaris Say.) 



Page 78. "Tanymecus lacuna, Herbst. Curculio lacwna, Herbst. Kiifer, 

 vol. vii. p. 350. PI. 100. fig. 10. T. laccena ? Herbst. Say. Curculionites, p. 

 9, No. 1. Halsey's Collection, No. — ." 



Page 80. "17. Centrinus ? dilectus. Plate I, fig. 4. 



"Punctured, and wdth brassy scales; scutel whitish; thinl joint of the an- 

 tennse twice as long as the fourth. 



"Length, exclusive of the rostrum, 20 hundredths of an inch. 



"Halsey's Collection, No. 165. 



trans, am. ent. soc, xliv. 



3 



