392 STAPHYLINIDA. 
its extremity in the middle) are remarkably large, separated by a deep incision, and are 
not at all bent upwards. 
I suggest that the genus is at present best placed between Philonthus and Ocypus. 
I have named it in honour of Mr. Julius Flohr, to whom science is indebted for the 
discovery of a great number of new forms in the Mexican insect fauna, this being one 
amongst the number. 
1. Flohria laticornis. (Tab. IX. fig. 27.) 
Nigra; elytris viridibus, capite thoraceque nitidis, illo dense fortiter punctato, anterius glabro, hoc ad latera 
punctato; elytris crebrius profunde punctatis; abdomine elongato, crebre fortiter punctato. 
Long. 11-20 millim. 
Hab. Mexico, Almolonga, Jaleomulco, Uruapan (Flohr), Ciudad in Durango (Forrer). 
Head about as broad as the thorax, a little narrowed behind to form the very broad 
neck; eyes small, the punctuation coarse, remarkably dense. Thorax longer than 
broad, straight at the sides, very convex transversely in front, with numerous coarse 
punctures on the sides, the middle broadly impunctate, except for four or five punctures 
on each side placed so as to form two irregular distant series. Scutellum densely 
punctured. EHlytra as long as the thorax, their punctuation remarkably deep. Hind 
body very little pubescent, coarsely and evenly punctate, the hind margins of segments 
two to five densely crenulate. 
I have examined four individuals of this species, three of them found by Mr. Flohr; 
one of them is a male. The characters are very slight, there being only a feeble 
dilatation of the front feet; but there is a broad shallow emargination of the last 
ventral plate. The figure is taken from a small female found at Uruapan. 
ONTHOSTYGNUS. 
Corpus gracile, dense punctatum, capite majore. Ligula integra; palpi elongati, articulo ultimo longiore, . 
gracili, cylindrico. Coxe intermedie valde distantes; mesosternum inter eas absque carinula; femora 
mutica; tarsi anteriores in utroque sexu parum dilatati, posteriores, haud elongati, subdeplanati. 
This genus is apparently closely allied to Hesperus, Fauv., though strikingly different 
therefrom in appearance. It has the side piece of the prothorax very small, so that the 
inferior marginal line is behind connected with the superior line far in front of the 
base; this character, in addition to the comparatively broad middle and hind feet, and 
the mesosternal structure are amply sufficient for its definition. 
Tam not acquainted with any species that can be referred to this genus other than 
the two whose discovery we owe to Mr. Flohr. 
1. Onthostygnus fasciatus. (Tab. X. fig. 1.) 
Niger ; elytris basi apiceque transversim cinereo-pubescentibus ; stylis analibus albidis, ad apicem fuscis. 
Long. 17-21 millim., mandibulis clausis. 
Hab. Muxico, Jalapa (Flohr). 
