ENTOMOLOGY. 



699 



Body convex. Thorax elevated, globular, or cubic. 

 Maxillse bilobate. 



Sfi. I, Cafiucinus. 



Lignifierda ca/iucinus. Herbst. 



Afiate cafiucinua. Fabricius, Paykull. 



Bostricus cafiucinus. Latreille, Olivier. 



Dermestes cafiucinus. Linnaeus. 



Inhabits Europe. 



Genus CCLXXI. Psoa. Fabricius, Latreille, Herbst. 



Dermestes. Rossi. 



Body flattened above. Thorax almost quadrate. Max- 

 illae with one lobe. 



Sfi. 1. Viennensis. 



Psoa viennensis. Fabricius, Latreille, Herbst. 



Dermestes dubius. Rossi. 



Tribe IV. Paussides. 



Body oblong and much depressed. Palpi conic-subu- 

 late. Antennas two, or ten-jointed. Elytra truncated. 

 Tarsi with entire joints. 



Genus CCLXXII. Pausus. Linnaeus, Fabricius, 

 Thunberg, Herbst, Afzelius, Donovan, Latreille. 



Antennae two-jointed, the last very large and irregular. 



Sfi. 1. Microcefihalus. 



Paussus microcefihalus. Linnaeus, Thunberg, Herbst, 

 Latreille, Afzelius, Fabricius. 



Inhabits Africa. 



Genus CCLXXIII. Cf.raptf.rus. Swederus, Dono- 

 van, Latreille. 



Antennae ten-jointed, perfoliated. 



Sfi. 1. Macleaii. 



Cerafiterus macleaii. Donovan, Latreille. 



Inhabits New Holland. 



Tribe V. Mycetophagides. 

 Body ovoid or oblong; in some depressed, in others 

 linear. Palpi filiform or bent at their extremities. An- 

 tennae ten or eleven jointed, thickening towards their 

 extremities, or terminated by a perfoliated mass. 



Family I. 

 Antennae ten-jointed. 



Nemosomida. 



Division I. 



Antennae with the club three-jointed, perfoliated. 



Genus CCLXXIV. Cis. Latreille. 



Anobium. Fabricius, Uliger, Herbst, Paykull. 



Dermestes. Scopoli. 



Hyi.esinus. Fabricius. r. 



Ptinus. Marsham. 



Antennae twice as long as the head. Body oval, de- 

 pressed. 



Sfi. I. Boleti. 



Dermestes boleti. Scopoli. 



Anobium boleti. Fabricius, Uliger, Paykull. 



Anobium bidentatum. Olivier. 



Ptinus boleti. Marsham. 



Inhabits the Boletus vesicolor. 



Genus CCLXXV. Nemosoma. Latreille. 



Dermestes. Linnaeus. 



Ips. Olivier. 



Colydium. Hellwig, Herbst. 



Antennae not or scarcely longer than the head. Body 

 linear. Head as long, or nearly as long, as the thorax. 



Sfi. 1. Elongatum. 



Nemosoma elongatum. Latreille. 



Ifis clongatus. Olivier. 



Colydium fasciatu in. Hellwig, Herbst, 

 Inhabits Europe. 



Division II. 



Antennae with a nearly globose two-jointed club. 



Genus CCLXXVI. Cerylon. Latreille. 



Ryzophagus. Herbst. 



Lyctus. Fabricius, Panzer, Paykull. 



Body elongate. Thorax quadrate, with the hindci 

 margin straight, contiguous with the elytra. Abdomen 

 not pedunculated. 



Sfi. 1. Histeroides. 



Lyctus histeroides. Fabricius, Paykull, Panzer. 



Byzofihagus histeroides. Herbst. 



Cerylon histeroides. Latreille. 



Inhabits Europe, beneath the bark of trees. 



Genus CCLXXVII. Monotoma. Herbst. 



Cerylon. Latreille. 



Lyctus. Fabricius, Paykull, Panzer. 



Body elongate, linear. Thorax quadrate, with the 

 hinder margin distant from the base of the elytra. Ab- 

 domen somewhat pedunculated. 



Sfi. 1. Terebrans. 



Cerylon tenebrans. Latreille. 



Inhabits beneath the bark of trees. 



Sfi. 2. Juglandis. 



Lyctus juglandis. Fabricius, Paykull, Panzer. 



Corticaria taxicornis. Marsham. 



Inhabits beneath the bark of trees. 



Family II. Mycetofihagida. 



Antennae eleven jointed. Mandibles little or not at all 

 prominent. 



Division I. 

 Antennae with the club two-jointed. 

 Genus CCLXXVIII. Ditoma. Latr. 

 Bitoma. Herbst. 

 Lyctus. Fabr. Payk. 

 Ips. Olivier. 

 Sfi. 1. Crenata. 

 Bitoma crenata. Herbst. 

 Ditoma crenata. Latr. 

 Lyctus crenatus. Fabr. Payk. 

 Ifis crenatux. Olivier. 

 Inhabits Europe, under the bark of dead trees. 



Division II. 



Antennae gradually thickening towards their extremi- 

 ties. Tarsi with the first joint longer than the following 

 one. 



Genus CCLXXIX. Mycetophagus. Fabricius, Pay- 

 kull, Oliv. Panzer, Latr. 



Thitoma. Geoff. 



Dermestes. Thunberg. 



Silphoides. Herbst. 



Boletaria. Marsh. 



Body oval. Antennae with the last joint elongate, ovate. 

 Maxillary palpi prominent. 



Sfi. 1. Quadrifiustulatus. 



Mycctofihagus quadrifiustulatus. Fabricius, Latreille, 

 Panzer, Paykull. 



Boletaria quadrifiustulata. Marsham. 



Inhabits fungi. 



Division III. 



Antennae gradually thickening towards their extremi- 

 ties, or with a three-jointed club. 

 4 T 2 



