ENTOMOLOGY. 



6b5 



Genus CXLIV. Sph-eridium. Fabricius, Olivier, 

 Lamarck. 



Dermestes. Linn. De Geer, Marsham. 



Body somewhat hemispheric. Eyes immersed. Tho- 

 rax transverse. Tibiae spinose, armed with heels. Stei 

 num behind produced into a conic spine. 



Sfi. 1. Scarab a aides. Black, shining;, smooth; scu- 

 tellum long-mangle; feet very spiny; each elytron at 

 the base with a blood-red spot, and a livid reddish spot 

 at the apex. 



Sfiharidium scarabteoides. Fabricius. 



Sfih&ridium scarab e aides, var. A. Latreille. 



Dcrmestes scarab a aides. Marsham, Linn. 



Inhabits dung. 



Tribe XVIII. Coprides. 



Antennae eight or nine jointed, terminated by an ab- 

 rupt lainellated mass. Anterior tibiae large and denta- 

 ted. Mentum not very large. Mandibles membrana- 

 ceous. Maxillae membranaceous, Clypeus semicircular. 



Family. I. Cofirida. 



Labial palpi very hairy, the last joint smaller than 

 the preceding. Scutellum none, or very obscure. Wing- 

 cases taken together, not longer than broad. Posterior 

 feet situated near the anus. 



Division I. 



The posterior, and sometimes the intermediate, tibiae 

 elongate, slender, little or not at all dilated at their ex- 

 tremities, nearly cylintlric. 



Genus CXLV. Ateuchus.* Web. Fabr. Illig. Latr. 



Copris. Geoflroy. 



Actinophorus. Sturm. 



ScarabjEus. Linn. De Geer. 



Antennae nine-jointed. Body depressed. Elytra ta- 

 ken together square, not abruptly or deeply sinuated 

 behind the shoulder. Hinder feet not much longer than 

 the body. Labial palpi, with the basal joint quadrate 

 oval. Anterior tibiae with four strong teeth externallyy 



Sfi. 1. Sacer. 



jlteuchus sacer. Fabricius. 



Scarabeus sacer. Linn. Oliv. 



Inhabits the southern parts of Europe and Africa. 



Genus. CXLVI. Gymnopleurus. Illiger. 



Ateuchus. Latreille, Fabricius. 



Antennae nine-jointed. Body depressed. Coleoptera 

 quadrate ; their external margin behind the shoulders 

 abruptly and deeply sinuated. Hinder feet not much 

 longer than the body. Labial palpi with their basal 

 joint somewhat quadrate. Anterior tibiae with three 

 strong teeth externally. 



S/i. 1. Plage/la tus. 



jlteuchus Jiagellatus. Fabricius, Latreille. 



Gymnofileurus Jiagellatus. Illiger. 



Inhabits southern Europe and Africa. 



Genus CXLVII. Sisyphus. Latreille. 



Ateuchus. Illiger, Fabricius. 



Copris. Geoffroy. 



ScARABitus. Linn. Olivier. 



Antennae eight-jointed. Coleoptera forming a triangle. 

 Feet elongate ; hinder ones much longer than the body, 



Hydrtena Margi/ialleus. Latr. 



Hydrofihilus margifialleus. Marsh. 



Elofihorus marinus. Paykull. 



Inhabits Europe. 



Genus CXXXVIII. Hydrjena. Kugellan, Leach. 



Ei.ophehus. Gyllenhad. 



Hydrophilus. Marsh. 



Palpi with the last joint acuminate at each extremity ; 

 maxillary palpi longer than the antennae. Clypeus 

 emarginate. 



S/i. 1. Longifial/iis. 



Hydrofihilus tongifialfiis . Marsh. 



Inhabits running water. 



Family II. Hydro/ihilida. 



Mandibles with their points bidentate. Thorax trans- 

 verse, short. Body haemispheric-oval. Tibiae simple 

 or spined. Tarsi ciliated or simple. Maxillary palpi 

 very long. 



Genus CXXXIX. Spercheus. Fabr. Latr. Schou. 



Hydrophilus. Illiger, Marsh. 



Sternum simple. Clypeus emarginate. Antennae six- 

 jointed. Tibiae simple, or scarcely spined. 



Genus CXL. Hydrobius. Leach. 



Hyurophilus. Latr. Fabr. Marsh. De Geer. 



Dytiscus. Linn. 



Sternum simple. Clypeus entire. Antennas nine- 

 jointed. Tibiae terminated by strong spines. Elytra 

 entire. 



Sfi. 1. Luridus. 



Hydrofihilus luridus. Latr. Fabr. 



Dytiscus luridus. Linn. 



Inhabits stagnant waters. 



Genus CXLl. Limnebius. Leach. 



Hydrophilus. Marsh. Gyllen. 



Sternum simple. Clypeus entire. Antennae nine- 

 jointed. Elytra truncate at their extremities. 



Sfi. 1. Piscinus. 



Hydrofihilus fiiscinus. -Marsh. 



Inhabits drains and springs. 



Genus CXLII. Hydrophilus. De Geer, Latr. Fabr. 

 Marsh. 



Dytiscus. Linn. 



Sternum produced into a spine. Clypeus entire. 

 Antennae nine-jointed. Anterior tarsi of the male sim- 

 ple, filiform. 



Sfi. 1. Caraboidcs. 



Hydrofihilus caraboides. Fabr. Latr. Marsh. 



Inhabits stagnant waters. 



Genus CXL1II. Hydrus. Leach, from the Lin- 

 nean MSS. 



Hydrophilus. Marsh. Latr. Fabr. 



Sternum produced into a spine. Clypeus entire. 

 Anterior tarsi of the male patelliform. Antennae nine- 

 jointed. 



Sfi. 1. Piceus. 



Hydrofihilus fiiceus. Fabricius, Marsham. 



Inhabits Europe in ditches. 



Tribe XVII. SphjBridides. 



Antennae terminated by a club. Maxillary palpi very 

 long. Mentum large, clypeiform. Head with the front 

 rounded, cowl-shaped. Feet formed for walking. Tar- 

 si with the basal joint as long or longer than the second 

 joint. 



• Insects of this genus are sculptured on the Egyptian monuments of antiquity, sereral specimens of which may be seen in the 

 gallery of the British Museum. 



