166 LAMELLICOENIA. 



margineque antico reflexo valde sinuatis ; fronte fere plana declivi, dense rugoso-punctata ; thorace post 

 medium rotundato-dilatato, angulis anticis acutis, posticis rotundatis, supra dense punctate ; scutello toto 

 punctato ; elytris dense punctatis, costis et interstitiis aequalibus et aequaliter convexis ; pygidio densissime 

 punctato et longe erecte piloso ; unguibus fissis dentibusque subaequalibus ; pedibus prsecipue tarsis sat 

 dense flavo-pilosis. 

 Long. 8 millim. 



Hab. Mexico, Tapachula in Chiapas (Edge). 



Two examples; judging from the rather dense hairy clothing of the anterior tarsi, 

 both males. 



31. Diplotaxis contracta. 



Subovata, glabra, testaceo-fulva, antennis palpisque pallidioribus ; clypeo brevi et lato, antice sinuate, angulis 

 rotundatis, supra transversim convexo, sutura frontali lata depressa, fronte biarcuatim elevata, scabroso- 

 punctata ; tborace antice valde subrecte angustato, angulis anticis porrectis, lateribus prope basin breviter 

 profunde sinuatis, angulis posticis acutis, supra insequali grossissime punctato ; elytris subconfluenter punc- 

 tatis, costis elevatis subtilissime seriepunctatis ; pygidio grossissime alveolato-punctato, setoso ; ventris 

 segmentis 2°-4 m convexis, inaequalibus, plus minusve rugoso-punctatis, 6° parvo ; unguibus normalibus. 



Long. 8 millim. 



Hab. Mexico, Ciudad in Durango (Forrer). 



An insect of singular aspect, owing to the anteriorly narrowed thorax. In other 

 respects the species is normal, except that the labrum is more deeply emarginated ; 

 the emargination (as in other Diplotaxes) is broadly arcuated and obliquely upwards 

 and backwards, but instead of leaving as usual a broad upper rim entire, nearly the 

 whole of the centre of the organ is cut away. 



Two examples. 



32. Diplotaxis (?) ? 



Hab. Guatemala, Cerro Zunil (Champion). 



A single example of a peculiar species, apparently belonging to this genus. 



33. Diplotaxis rugosipennis. 



Diplotaxys rugosipennis, Blanch. Cat. Coll. Ent. i. p. 172 \ 

 Hab. Mexico 1 . 

 I have seen no specimen answering to Blanchard's description of this species. 



Subfam. BHIZOTBOGINJE. 

 CHL^ENOBIA. 



Chlmnobia, Blanchard, Cat. Coll. Ent. i. p. 116 (1850) ; Lacordaire, Gen. Col. iii. p. 265 (1856). 



Lacordaire placed this genus in the " Subtribu Macrodactylides " ; but it differs from 

 that group in all the characters which distinguish the "Macrodactylides" from the 



