LACHNOSTEENA. 189 



shallow fovea, which is so definite a character in the two males examined of L. leonina. 

 The fine and close punctuation of the pygidium extends very near to the apex, and the 

 pubescence is long and flatly adpressed like that of the propygidium and the sides of the 

 abdomen, but the pubescence is easily abraded. In L. leonina the base of the pygidium 

 is clothed with very long, erect hairs, and the apical third is glabrous. 



8. Lachnosterna dulcis. 



L. cribricolli affinis, quoad thoracis foveas grossas simillima ; differt corpore ovato, castaiieo-fusco fere nigro, 

 antennis pedibusque testaceo-rufis ; capite sicut in L. cribricolli grossissime confluenter punctato ; clypeo 

 subsemicirculari, margine antico angulatim sinuato, fronte longe, thorace longissime, erecto-pilosis ; thorace 

 grosse irregulariter parce foveato, spatiis laevibus ; scutello impunctato ; elytris ovatis, subtiliter punctulatis, 

 juxta suturam solum rugulosis, disco et lateribus sublsevibus, pilis longis paucis juxta scutellum exceptis 

 glabris ; pectore fulvo-villoso, pedibusque pilis longis fimbriatis. 

 cJ . Pygidium. convexum, basi glabrum, apice longissime dense hirtum. "Venter convexus, medio lsevis, segmento 

 5° apice declivi, 6° transversim depresso-concavo. Calcaria postica libera. Ungues valde curvati, tridentati, 

 dente apicali multo longiore, acuto. Antennarum clava parva. 



Long. 15 millim. 



Eab. Mexico, Toluca (Edge). Three males. 



The three teeth of the claws are, as in L. cribricollis, separated only by narrow clefts, 

 the apical one being much the longest, the basal quadrate. In colour and in the very 

 long, erect hairs of the anterior part of the body L. dulcis resembles L leonina ; but it 

 is a broader and much smoother insect, and the elytra are destitute of the short hairs 

 distinguishing L. leonina. 



9. Lachnosterna xanthe. 



L. cribricolli affinis ; multo minor et minus elongata, ovata, f ulvo-testacea, subnitida, capite et thorace rufioribus 

 longe pilosis, elytris (margine fimbriata excepta) glabris, sat dense punctulatis, ecostatis ; capite grosse 

 confluenter punctato ; clypeo utrinque sat late rotundato, margine antico elevato, medio sinuato-depresso ; 

 thorace sicut in L. cribricolli et L. dulci grosse foveato sed foveis plerumque discretis, spatio amplo utrinque 

 prope basin lasvissimo. 



S . Pygidium convexum, sat dense punctulatum et breviter erecte pilosum. Venter medio paullo depressus, 

 politus, sparsissime punctulatus, interdum canaliculatus, segmento 5° apice declivi, dense punctulato, apice 

 arcuatim emarginato, 6° transversim depresso granulato. Calcaria postica libera. Ungues sicut in L. dulci. 

 Antennarum clava elongata, articulis 2°-7 m subsequalis. 



Long. 12 millim. 



Eab. Mexico, Durango city, Pachuca in Hidalgo, Chihuahua city {Edge). 

 Four examples, all males. 



10. Lachnosterna cribricollis. (Tab. X. fig. 23, <$ .) 



Ancylonycha cribricollis, Blanch. Cat. Coll. Ent. i. p. 133 \ 



Eab. Mexico \ Guanajuato, San Luis Potosi [Salle), Mexico city (Flohr). 



Among the pale reddish-testaceous species this is distinguished by its relatively small 

 and extremely coarsely and irregularly punctured thorax. The tarsal claws, with the 



