APHODITTS. 91 



et postice grossius) punctulato ; elytris crenulato-striatis, interstifciis planis, alutaceis, subtilissime sparsim 



punctulatis ; femoribus 4 posterioribus flavo-testaceis. 

 $ . Tarsi intermedii graciles, unguibus basi intus obtuse dentatis. 

 5 . Tborax paullo crebrius punctulatus. Ungues omnes sirnplices. 

 Long. 6 millim. 



Hab. Mexico, Las Vigas, Mexico city, Huitzilac, Pachuca (Edge). 

 A large number of examples. 



Var. A. durangoensis. Paullo major. 7 millim. 



Hab. Mexico, Eefugio in Durango (Hoge). 



Closely allied to A. fuliginosus, but less opaque, the head and thorax being always 

 shining and black, and the elytra having an oily gloss, which, however, is shown in less 

 degree in some examples of A. fuliginosus. But a more definite character exists in the 

 structure of the tarsi of the middle pair of legs in the male : in A. fuliginosus the tarsi 

 are much shortened, with nodose joints 2-4, and thickened claws toothed at the base ; 

 in A. hogei they are slender, nearly as in the hind pair, the claws remaining toothed 

 within at the base. Durango specimens are glossy and considerably larger in size ; in 

 the numerous examples examined I find no other difference. 



27. Aphodius mexicanus. 



Aphodius mexicanus, Harold, Berl. ent. Zeitschr. 1862, p. 382 * ; 1863, p. 330. 



Hab. Mexico, Parada, Oaxaca 1 , Puebla, Etla, Juquila (Salle), Mexico city (Flohr), 

 Oaxaca (Hoge) ; Guatemala, Totonicapam (Champion). 



There are many examples in the Salle collection, including a type specimen bearing 

 a label in Von Harold's handwriting. According to these the species varies considerably : 

 in size from 4^ to 6 millim. ; in colour from black to livid-castaneous ; in the depth 

 and strength of the punctured striae, which are sometimes deeply gouged with bilineated 

 bottoms, and in rare cases quite superficially impressed ; in the hind angles of the thorax 

 — sometimes rounded and sometimes nearly rectangular ; and in the truncation of the 

 clypeus being, especially in small examples, scarcely perceptible. 



28. Aphodius gravidus. 



Aphodius gravidus, Harold, Berl. ent. Zeitschr. 1863, p. 329 \ 

 Hab. Mexico (ex coll. Heyrolle l ). 



This species is not contained in our collections. 



29. Aphodius puncticeps. 



Aphodius puncticeps, Harold, Berl. ent. Zeitschr. 1862, p. 383 l ; 1863, p. 330. 

 Hab. Mexico, Chalchicomula (Salle 1 ). 



The type specimen in the Salle collection is the only one I have seen. 



NN 2 



