768 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



which the original description was based. Several additional speci- 

 mens (Nos. 4009, 4048, 4091) were obtained by Mr. Bowditch and my- 

 self, and these help to show that the insect would better be referred to 

 Dryocwtes than to Trypodendron { = Xyloterus of LeConte's recent mono- 

 graph). The species is of about the size of D. septentrionalis (Mann.), 

 but has more of the markings of B. affaber (Maun.), although the punc- 

 tuation of the elytra is not so distinctly separable into longitudinal 

 series. 



Dryocwtes carhonarius. — Another species, not very closely allied to 

 the last, is represented by a siugle, rather mutilated specimen (No. 

 3999), which is pitchy-black, and consists of part of the head, thorax, 

 and elytra. The head is rather long, faintly and not very closely punc- 

 tured, the eye moderately large and circular. The thorax is propor- 

 tionally longer than in the preceding species; the front margin recedes 

 a little on the sides, and the surface is subrugose by subconfluent punc- 

 tures, the walls of which form wavy ridges having a longitudinal direc- 

 tion. The elytra are broken at the tip ; their outer anterior angle is 

 obliquely excised, and the outer margin behind it straight, not sinuate, 

 as in the preceding species; the surface is rather coarsely, but very 

 faintly granulate, more distinctly next the base, but even here very 

 vaguely ; and there are faint indications of three or four distant, simple, 

 longitudinal strise. 



Length of the fragment as curved 4""", of head 1.1""" ?, of thorax 1.3"""; 

 probable length of elytra S.IS'""^; width of same 1.5'""'; diameter of eye 

 0.35"^'". 



ANTHEIBID^. 



Cratoparis repertus. — A single specimen (No. 4035) shows the frag- 

 ment of an elytron, which is referred to this genus from the character of 

 the punctuation and the arrangement of the strise. It closely resembles 

 C. lunatus Fahr. in these points, but must have belonged to a slenderer 

 insect, about as large as C. lugubris Fahr. There are eleven strise or 

 rows of pretty large, subconfluent, short, longitudinal dashes or oval 

 punctures, deeply impressed, the outer of which follows the extreme 

 margin, excepting apically; the inner stria also runs very near the border; 

 the interspaces between the first and second and between the second 

 and third strise are equal, and a little broader than the interspaces 

 between the other striae ; the inner margin is delicately grooved next 

 the base, as in G. confusus. 



Length of fragment 4.3™™ ; width of elytra 1.6™"^; width of interspace 

 between second and third strise 0.21™"', between third and fourth stri£e 

 0.13"™. 



Cratoparis? elusus. — To this I refer doubtfully two specimens (Nos. 

 4012, 4060), neither of them very perfect, which appear to belong 

 together, and to represent an insect allied at least to Cratoparis, and of 

 about the size of C. lunatus Fahr. It appears to have a short rostrum, 



