Genera Bleclius, Ileterocerus, and Dyscliirius. 41 



covering thin, coarse, the hair standing out from the body, brown, 

 in the eljtra partly p;oklen, forming three narrow, serrated, 

 gohlen transverse bands ; the outer layer of hairs very long, 

 close, and black ; teeth of mandibles very powerful ; lateral 

 angles of pronotum pointed, marginated ; elytra coarsely punc- 

 tured, without coloured markings on the integument itself; ab- 

 domen underneath with a broad, dark-red margin ; arches of 

 creaking-apparatus I'ecurring towards postei'ior coxte. 3f-4 mil- 

 lim.), r. 



AuGYLES, nov. gen. 



Antennce 10-jointed; club abruptly commencing, third and fourth joints 

 very small. 



Maxillary lobes furnished with bristles. 



Inner lobe of mandibles membranaceous, with membranaceous comb, 



1. A. liispidulus, Ksw., fr. 



III. 



Altliough the representatives of our indigenous genera of 

 Scaritini, Clivina and Dyscliirius, abound everywhere, our know- 

 ledge of their natural history seems still open to not unimpor- 

 tant additions. On a previous occasion* I drew attention to 

 several pecu.liarities in the structure of the mouth not hitherto 

 noticed — for instance, the convenient character for distinction be- 

 tween these two genera, that the anterior margin of the clypeus 

 is merely slightly emarginate in Clivina, but bi- or tridentate 

 in Dyschirius ; and in a paper on the new genera Niletus and 

 Ochyropus f, I have pointed out that both Niletus and Clivina, 

 Dyschirius, Oxygnathus, and Oxystomus amongst Scaritini, pos- 

 sess a sharp, hard, horny spine between the claws — a true ony- 

 chium, the possession of which was formerly looked upon as a 

 principal character of certain Lamellicornia, but which really 

 occurs in many Coleoptera. To these we shall add two other 

 remarks. The inner lobe of the maxillse in Dyschirius is 

 almost straight, and truncate at the apex, though it is often de- 

 scribed as pointed, owing to some of the terminal spines being 

 mistaken for the apex of the lobe. But in Clivina [fossor] the 

 lobe terminates, as in other Carabi, with an inwardly bent hook. 

 In Dyschirius the two bristles of the lingua are divergent, whilst 

 in Clivina {fossor) they stand so close together as to look like 

 one thick bristle. The anterior margin of the palpifer is 

 rounded in Dyschirius, with finely serrated edge, whilst in Cli- 

 vina it presents an obtuse angle with undulated edge. 



In examining the organs of the mouth in a great number of 

 specimens of Dyschirius, I observed that in many individuals 



* Danmarks Eleutherata, i. p. 110, tab. 4. fig. a, i. 

 t Naturhistorisk Tidsskrift, Raekke 2. vol. ii. (1846-49), 346; vide 

 Ann. & Mag. Nat. Hist. vol. x. p. 379. 



