NORTH AMERICAN COT.EOPTERA. 



205 



bearing on the upper end next to the subfrontal excavation whisker- 

 shaped tufts of hair ; each side of the tuber the clypeul margins are 

 reflexed. The frontal margin in l sulcate in the middle ; the pen- 

 dant produced, lobes each side of the eraargination are common 

 to all those species belonging to the " nigricantes" beset with con- 

 vergent hairs. The first joint of the antennae in this species is con- 

 vex below, second larger than third, not transverse as in the S of 

 B. spinifer. 



The ? 9 of B. cephalote^ and spinifer differ in the second joint of 

 the antenna; ; the carina on vertex. 



I may further add that the reflexed portions of the clypeus are 

 sharp angled and appear by su]ierficial examination as horns, so that 

 with the clypeal tuber the clypeus appears 3-horned, like the clypeus 

 of B. globosus. 



I find that Casey does not mention the impression on the vertex. 



The setigerous punctures Casey mentions I was not able to find on 

 those small teeth in the subfrontal excavation. 



Batrii^ns spinifer n. sp.— Shining black, long, densely pubescent. Elytra, 

 marginal rounded angle of tbe prothorax and supra-antennal tubercle in sun- 

 light blood-red, antennfe, palpi and legs rust-red. Head quadrate, vertex smooth, 



but little convex, with an entire coun- 

 tersunk fine carina, circumambient 

 sulcus conspicuous, ending posteriorly 

 in round spongious fovefe, twice as dis- 

 tant as either from the eye ; lateral 

 margin overhanging the eyes by its 

 sharp carinate edge, punctate, more so 

 the frontal margin, which is in the 

 male narrowly concave in the middle, 

 and divided by a line impressed line, 

 declivous anteriorly to the inter-an- 

 teunal line, the lateral part of the de- 

 clivity beset with long convergent 

 hairs ; between tbese hair pencils 

 emarginate from where two pairs of 

 the small triangular teeth are emerging, the outer ones smaller inconsj-icuous. 

 Subfrontal excavation deep, from the bottom of which a broad, triangular, hori- 

 zontal tooth stretches out, resting with the acute point on the tips of the clypeal 

 tuberosity, the base of which rests again on the transverse labrum; the cone is 

 just perceptibly higher than broad at the base, and laterally separated by a groove 

 from the lateral expansion (wing) of the clypeus, which is concave, with a retuse 

 angulated margin. The profile of the face resembles somewhat the form of a 



^'ure from a sketch made from LeConte's % type 



1.— Batrisus spinifer Br. 



•>. — Antennae of % . 



3.— Antennae % B. nigricans Lee.-' 



* I have inserted this 

 (G. H. Horn). 



