LACHNOSTEENA. 191 



13. Lachnosterna punctulicollis. (Tab. X. fig. 25, a .) 



Oblonga, postice paullo dilatata, elytris glabris, castaneis, thorace nigro subopaco, minute et dense punctulato, 

 antice, medio et postice punctis grossis nonnullis setiferis transversim positis ; capite rufo-castaneo, grosse 

 scabroso, clypeo brevi, rotundato, antice medio late sat profunde sinuato, supra medio (ante suturam 

 frontalem) transverse carinato, vertice transversim obtuse carinato ; thorace medio valde dilatato et postice 

 valde angustato ; elytris ecostatis, sat dense punctulatis ; pectore fulvo-villoso. Ungues omnes ( S $ )basi 

 grosse quadrato-dentata (dente parum elevato), dente mediano lato, apice acuto, dente apicali longiore, 

 acutiore. 



c? . Pygidium parum convexum, disperse punctatum et erecte pilosum, margine apicali reflexum. Venter valde 

 convexus, medio politus, segmento 5° apice valde declivi sed glabro, 6° transversim concavo, subtiliter 

 rugoso, medio longitudinaliter carinato. Calearia postica libera. Antennarum clava sicut in $ ovata. 



2 . Pygidium planum, paullo concavum, sed apice sensim elevato. Venter sicut in <S , sed segmento 6° convexo, 

 polito, parce grosse punctato. 



Long. 15-16 millim. 



Hab. Mexico, Yolos (Salle). Three examples. 



Allied to L. cribricollis, though differing in so many important points. The carinated 

 clypeus, though the carina is not very sharply defined, betrays an affinity towards the 

 Old-World Schizonychce. 



14. Lachnosterna parumpunctata. 



L. puncticolli affinis, sed differt thorace polito, sparsissime punctato, etc. Oblonga, postice dilatata, nuda, capite 

 castaneo-rufo, thorace nigro, lateribus castaneo-rufis, elytris castaneo-fuscis, sat dense punctulatis, ecostatis, 

 ■ antennis, corpore subtus pedibusque fulvo-castaneis ; clypeo brevi rotundato, margine antico elevato, medio 

 profunde sinuato, grosse confluenter punctato, linea elevata transversa obsoleta, fronte grosse scabrosa, 

 vertice elevato hevissimo ; thorace medio valde dilatato subproducto ; pectore fulvo-hirto. Antenna? 

 10-articulatse. 



$ . Pygidium parum convexum, grosse rugoso-punctatum, nudum. Venter convexus, medio laevis, segmento 5° 

 medio aspere setifero-punctulato, margine postico arcuatim emarginato, segmento 6° medio lato aspere 

 granulato canaliculate. Calearia postica elongata, libera. Ungues basi valde quadrato-dilatati, dente 

 mediano lato, apice acuto, dente apicali graciliore, dentibus omnibus basi approximatis. Antennarum 

 clava ovata. 



Long. 14 millim. 



Hab. Mexico, near Acapulco (Baron, ex coll. Harford). 



II. Dentition of claws as in I. ; but those of the middle feet of the male deformed, 

 the exterior claw being abruptly bent, and its lower tooth enlarged and projecting 

 laterally. 



15. Lachnosterna ravida, (Tab. XL fig. 1, <s .) 



Ancylonycha ravida, Blanch. Cat. Coll. Ent. i. p. 136 l . 



Hab. Mexico \ Orizaba, Juquila, Cordova, Tepansacualco, Peras, Parada, Yolos 

 (Salle), Oaxaca (Salle, Hbge), Jalapa, LasVigas (Hoge); British Honduras, R. Sarstoon 

 (Blancaneaux) ; Guatemala (Salle). 



The unmeaning phrases which Blanchard thought sufficient to distinguish this 

 species from the similarly-coloured L. testaceipennis apply equally well to the females 

 of both species. According to the examples named L. ravida (to all appearance 



