208 LAMELLICOENIA. 



$ . Pygidium planum, sparsim punctulatum. Venter convexus, segmentis 5° et 6° (piano vel paullo convexo) 



paullo densius punctulatis. Ungues sicut in cf . 

 Long. 13-20 miUim. 



Hab. Mexico, La Piedad in Michoacan (Salle), Tupataro in Guanajuato (Edge). 



Named " Eugastra, sp.," in the Salle collection. It approaches Eugastra and the 

 section to which L. farcta belongs (Group II. of Leconte) in the metasternum being 

 somewhat abbreviated, but differs in being winged in both sexes. It is a Lachnosterna 

 allied to L. molopia, with which it has in common the two forms of male. The ligular 

 part of the mentum has a deep notch, and the mandibles and maxillae are very robust. 

 In all the numerous examples the colour of the body, antennae, palpi, and legs is deep 

 black. 



An example from Tupataro is figured. 



57. Lachnosterna integra. 



Melolontha integra, Say, Bost. Journ. Nat. Hist. i. p. 180 (1835) 1 ; Complete Writings, ii. p. 654 



(nee Leconte). 

 ? Ancylonycha stipitalis, Blanch. Cat. Coll. Ent. i. p. 136 2 . 



Hab. Mexico x 2 , near the city (Flohr), Jalapa (Hbge). 



Distinguished from numerous allied species, having a similar entire semicircular 

 clypeus &c, by its clearer reddish-tawny colour, with very rarely a trace of pruinosity 

 and that on the elytra only; by the extremely short antennal joints 3-7, with greatly 

 elongated club in the male (the club being longer than all the rest of the antennae) ; 

 and by the concave sixth ventral segment in the male having a narrow anterior rim. 

 The forehead, thorax, and base of the elytra are clothed with very long hairs, and the 

 elytra have, besides, a short incumbent grey bristle in each puncture. The fifth ventral 

 segment in the male has a median, densely granulated, and brown oval patch. The 

 general form is rather short oblong-ovate. This species varies in size from 14 to 

 17 millim. 



58. Lachnosterna anodentata. 



L. integrce (Say) proxime affinis. Colore et pubescentia haud diversa. Antennarnm clava 8 antem valde 

 elougata, cteteris articulis conjunctis longior. Differt nnguibns basi haud dentatis, parum obtuse dilatatis, 

 tborace antice longe sinuatim angustato, angulis anticis acutis, et segmento 6° ventrali margine anteriore 

 medio dentato-producto. 



Long. 14-17 millim. 



Eab. Mexico, Etla, Parada, Peras (Salle), Mexico city, Jalapa (Hbge). 



The colour is reddish-tawny, as in L. Integra, with only a slight trace of pruinosity, 

 in some examples, on the elytra. The semicircular concave clypeus and pubescence 

 also offer no difference ; but the general form is rather more oblong and narrower. 

 The antennas of the males have a similarly long pale club, but the joints 3-7 are 

 scarcely so short as in L. integra. Two female examples, labelled L. stipitalis, 



