AMERICAN COLEOPTERA. 143 



one of moderate size resembling Lack. Burmeisteri and one smaller 

 resembling L. inana, the former from New Mexico and the latter 

 from Texas. 



These species I hope to make known with a general revision of the 

 Lachnosternfe. 



L,ACHBrOSTERlVA, Hope. 



The following synonyms have been detected : 



L. sororia Lee. is rufiola Lee. The antennas are nine-jointed in 

 both forms. 



L. rohusta Lee. is crassismna Bl. The synonymy of ohesa with the 

 latter has already been noticed. I find robusta to have the antennae 

 distinctly ten-jointed agreeing with crassissimn in this and all other 

 characters. 



CY€L,OCEPIIAL,A, Latr. 

 C. elegans Horn, is identical with dimidiata Burm. 



LIGYRVS, Burm. 



Three species of this genus have been separated on the dentation 

 of the galea of the mandible, niorio^ gihhosus and juvencus. I have 

 seen very good series of these species and, although some variation 

 does occur in the distinctness of the outer tooth, from age and wear- 

 ing, it appears to me that the three should be united under one name 

 (ffihbosus) as specifically identical. 



Our species separate easily in the following manner: 



Thorax impressed in front and with a small tubercle. Anterior tibiae tridentate. 



Clypeus bidentate gibbosns. 



Clypeus unidentate ruginasus. 



Thorax not impressed nor tuberculate. Anterior tibipe subquadridentate. 



Larger species, brownish or pieeous; mesothorax hairy relictiis. 



Smaller species, black; body beneath not hairy rugiceps* 



STRATEGUS, Hope. 

 Within our faunal limits are five species and while well known and 

 easily distinguished by those having all the species, it is not an easy 

 matter for others to name with certainty any of them excepting well 

 marked males of Antseus or Julianus. The following study is pre- 

 sented to remedy the difficulty. 



Elytra with sutural stria visible, at most, for a short distance from the tip. 



Anttens. 



Elytra with entire sutural stria. 



Sexes differing in form of thorax Julianas. 



Sexes not differing in the form of thorax. 



Galea of mandible with a long slender median tooth iVformon. 



Galea without slender tooth. 



Galea differing in the two sexes splendens. 



Galea similar in the two sexes cessus. 



^ 



