318 LAMELLICOENIA. 



II. Tarsi antici 6 ungue exterior e crasso deflexo. 



9. Ligyrus ebenus. 



Scarabceus ebenus, De Geer, Mem. Ins. iv. p. 317, t. 19. fig. 1 \ 

 Scarabmus cordatus, Fabr. Ent. Syst. i. p. 31 (1792) 2 . 

 Cyclocephala scarabmna, Perty, Del. Anim. Art. Bras. p. 46, t. 9. fig. 15 3 . 

 Ligyrus scarabminus, Kirsch, Berl. ent. Zeitschr. 1873, p. 346. 



Hob. Mexico, Tuxtla (Salle). — South America, Guiana \ Peru 3 , Amazons, Brazil 3 ; 

 West Indies, St. Martin (coll. Bates), Guadaloupe 2 . 



Deep shining black (piceo-castaneous beneath) and finely sculptured. The head is 

 broad, and the clypeus only moderately narrowed, with two very broad and obtuse 

 distant teeth ; the mandibles are bidentate and the tibiae tridentate ; the thoracic 

 tubercle is acutely conical, and the fovea rather narrow and deep and subtriangular. 

 In the male the anterior tarsi are short and thick, the fourth joint produced beneath 

 into a longish flattened and striated tooth, and the outer claw is very broad and deflexed, 

 and deeply, but unequally, cleft at the apex. The size of the Amazons and West Indian 

 examples is 27-30 millim. M. Salle's single Mexican specimen is only 22 millim. 

 [De Geer says the species measures " about an inch " (old French %).~\ It is named 

 (with L. latifovea) Ligyrus fossator (Burm.) in the Salle collection. 



10. Ligyrus sallaBi. (Tab. XVIII. fig. 18.) 



L. relicto (Say) proxime affinis, sed L. tumuloso (Burm.) similior. Elongato-oblongo-ovatus, castaneo-fuscus 

 (interdum elytris rubicundis) vel nigro-piceus, nitidus, pectore vulpino-villoso ; clypeo valde angustato 

 apice valde reflexo, dentibus duobus latis, carina frontali alte elevata et medio valde depressa vertice 

 concave- ; tborace disperse punctato, antice simplici ; elytris utrinque striis punctatis geminatis tribus, 

 interstitiis mediocriter punctatis; pygidio discrete (interdum parce) umbilicato-punctato. Tibiae anticse 

 dente 4° parvo, acuto, juxta 3 1 basin alteraque simili inter 2 m et 3 m . <$ . Tarsi antici mediocriter robusti, 

 ungue majore deflexo incrassato apice intus uni-spinoso; articulo 4° apice subtus producto et striate 

 Mandibulse tridentatse. 



Long. 18-25 millim. <j $ . 



Hob. Mexico, Toluca, Juquila, Vera Cruz (Salle), Mexico city (Iloge, Smith), Irapuato 

 in Guanajuato, Jalapa, Almolonga, Oaxaca (H'oge) ; Guatemala (Salle), Cubulco in 

 Vera Paz (Champion); Nicaragua, Chontales (Janson); Costa Rica, Cache (Sogers). 



More than fifty examples, varying widely in size, form, and colour, but very constant 

 in the structural characters described above. The species comes very close to the 

 North- American L. relictus, having a very similar form of frontal carina, and similar 

 mandibles and anterior claw-joint and claws in the male. When a large series of each is 

 compared, much dissimilarity is shown as to general form and colour, and L. sallcei 

 differs in every example in the much broader and less approximated clypeal teeth, 

 and the presence of a well-formed denticle between the 2nd and 3rd anterior tibial teeth. 

 We figure an individual from Almolonga. 



