DESCRIPTIONS OF NEW SPECIES. 



verse impression a short distance from the base, as well as by the 

 elytral striae being less impressed and less strongly punctured. 



The tooth at the middle of the internal side of the front tibiae 

 of the male is much less prominent than in X. saperdoides and 

 ru/ipes, and the outline from the tooth to the tip much less 

 concave. 



LEC. 



396. H. concolor. Niger, subopacus, elongatus minus convexus, 

 capite thoraceque punctatis, hoc quadrate, latitudine paulo breviore, 

 apice emarginato, lateribus fere rectis tenuiter marginatis, basi late 

 bisinuata, angulis posticis subrectis ; elytris thorace parum latioribus, 

 parallelis apice rotundatis, humeris rotundatis, elytris striis profundis 

 punctatis, scutellari e punctis pluribus composita ; antennis capite sesqui 

 longioribus extrorsum magis incrassatis articulo 3io sequente haud 

 longiore. Long. *34. 



Lake Superior and Canada. Differs from H. femoratus by the 

 lustre being less opaque, by the thorax being broader, and nearly 

 as wide as the elytra ; by the feet being black, by the eyes more 

 strongly transverse, and by the antenna? being shorter and more 

 thickened externally. The outer joints of the antennae are trans- 

 vers^, and fully twice as wide as their length. The body beneath 

 is shining and .finely but not densely punctured ; the under sur- 

 face of the prothorax is coarsely punctured. 



Haplandrus differs from Xylopinus, Upis and other allied 

 genera, not only by the characters given in the synoptic table,* 

 but by the prosternum being prolonged behind the front coxae, 

 fitting into the concave mesosternum. The legs are slender and 

 alike in both sexes ; the hind tarsi are short, with the first joint 

 as long as the two following, and the last joint longer than the 

 other united. The epipleurae extend almost to the tip in H. 

 femoratus, but are a little shorter in this species, reaching how- 

 ever beyond the last ventral suture. 



I have mentioned, in establishing the genus, that three species 

 were known to me ; but on closer examination, I find that the 

 supposed third species proves to belong to Metaclisa Duval. 



IPHTHIMUS TKUQUI. 



397. I. opacus. Niger opacus, capite scabro, medio rngoso, thorace 

 transverse, latitudine fere duplo breviore, angulis anticis valde rotun- 



* Class. Col. North America, p. 230. 



