210 LAMELLICOENIA. 



c? . Pygidium versus apicem altius convexum, punctulato-setulosum, prope apicem et ad marginem apicalem 

 setis multo longioribus obsitum. Venter medio laevis, politus, canaliculatus ; segmento 5 U medio area 

 depressa, opaca, dense granulata; 6° transversim concavo, margine anteriore elevato-dilatato, medio inciso. 

 Calearia postica elongata, libera. Antennarum clava brevis, articulis 2°-6 m conjunctis haud longior. 



2 . Pygidium triangulare, setis et punctis sicut in J . Venter convexus, medio politus, sparsim setifero-punc- 

 tatus ; segmento 5° praecedente dimidio iongiore. 



Long. 17-19 millim. 



Hah. Mexico, Tepansacualco, Peras, Guanajuato (Salle), Mexico city (Flohr), Jalapa, 

 (Edge). 



Named L. longipilosa, Reiche (MS.), in the Salle collection. The species resembles 

 Phytalus pruinosus and L. rorulentus, but the form of the claws and the spurs of the 

 posterior tibiae are quite different. 



62. Lachnosterna brevidens. 



L. integral (Say) affinis, sed differt unguibus dente inferiore parvo prope basin sito. Anguste oblonga, gracillima, 

 fulvo-testacea, subnitida, brevissime griseo-setosa, fronte, tborace antice elytrisque basi pilis longioribus 

 erectis obsitis ; clypeo semicirculari valde concavo, sparsim punctato, fronte grosse scabrosa ; tborace medio 

 parum dilatato, margine subcrenulato, sequaliter punctulato ; elytris discrete punctulatis. 



c? . Pygidium mediocriter convexum, nitidum, punctatum, parce breviter setosum. • Venter medio parum 

 depressus, sat dense aspere punctulatus et setosus, suturis deletis ; segmento 5° toto medio densissime 

 granulato et fusco, 6° vix concavo medio granulato et setoso. Calearia postica elongata, libera. Ungues 

 graciles, prope basin denticulo parvo, basi ipso leviter dilatato. Antennarum clava valde elongata, articulis 

 l°-7 m conjurictis longior. articulis 4°-7 m intus acute productis. 



Long. 14-15 millim. 



Hah. Mexico (Salle, ex coll. Sturm). Two examples, males. 



Bears in the Salle collection the name L. obesa, Sturm (MS.), which I cannot adopt, 

 as it has been used for a described species by Dr. Leconte. 



63. Lachnosterna ? 



Hab. Mexico, Zimapan in Hidalgo (Hbge). 



A single example, sex uncertain, of a very small and distinct species of the L. incerta 

 group. 



64. Lachnosterna ? 



Hah. Mexico, Guajuco in Nuevo Leon (Br. Palmer). 

 A single example of a species allied to the preceding. 



65. Lachnosterna glabricula. 



Lachnosterna glabricula, Lee. Journ. Ac. Phil. ser. 2, iii. p. 260 \ 



Hah. Noeth Ameeica, Kansas \ Texas.— Mexico, Santa Clara in Chihuahua (Hoge). 



One example (female) agreeing well with Leconte's description and with examples from 

 Texas, with which I have compared it. It is distinguishable from similar unicolorous 

 testaceous species from Mexico by the submarginal costa of the elytra. 



