Metabolis. cavity of the eye. Feet perfectly ‘contractile. Man- 
rm" dibles very inent. 5 
130. Hus- Genus C Hisrer.* Linn, Fabr. &c. 
TER. Arteranus. Geoffroy, 
: Body somewhat quadrate. Thorax transverse. Scu- 
‘ Elytra shorter than the abdomen. Breast 
ic, obtuse. 
exceeding the height. 
Tibiz cm eco Tarsi short. 
a. Body not very much. 
ister unicolor. Linn. Fabr. &. 
. Hister striatus, abr. Herbst, 
y Inhabits the dung of oxen and horses. 
Subdivision 3. 
Antenne strait, not inserted in the cavity of the eyes. 
semicontractile. 
Feet 
131. Noso- Genus CXXXI. Nosopenpnron. Latreille. 
BEXDRON. Byrruvs. Olivier. 
Spuzripiom. Fabr. ay by 
Antenne terminated ly by a three-jointed per- 
“6 
T 
ng ee ee Eye gee 
i g 
elms. ; 
—— Genus CXXXII. Lrunivs. Miiller, Gyllenhall, Me- 
Dyrtiscus. Panzer. 
Curysometa. Marsham. 
* Evmis.  Latr. 
what oval. 
1. Volckmari. 
i Voleckmari. Panzer, Faun. Ins. Germ. fas. 7. 
Bu Subdivision 4, 
Antenne inserted in the anterior canthus of the eye. 
183. Pan- Genus CXXXIIL Pannus. Fabr. Illiger, Marsh. 
us. Dermestes. Geoffroy. 
Evater. Rossi. 
Dryoprs. Olivier, Lamarck, Latr, 
Auricula- 1. Auriculatus. 
* This 
+> This singular genus has the lip and maxille 
ENTOMOLOGY. 
95 
Metabolia. 
Tarsi with four distinct joints. 
Genus CXXXIV. Hererocervs. Bosc, Fabr. Ilig. 134. Here- 
Latr. Marsham. BOY Ut 
Antenne of eleven joints, the seven last 
forming a dentate or serrated mass. 
Sp. 1. Marginatus, Blackish, villose ; sides of the Margina- 
thorax and abdomen, with spots on the elytra, mar- tus. 
gins of the abdomen, and feet, pale luteous. 
pa aging marginatus. Fabr, Bosc, Iliger, Panzer, 
Inhabits marsh b ing in the mudd 
- y places, burrowing ly 
Genus CXXXV. Gronissus.¢ Latr. 
Pimetia, Paykull, Fabr. 
Antenne nine-jointed, the three last joints forming a 
r Py solid mass. 
1 igmed. 
Fimelia pygmea. i Fabr. 
Georissus pygmeus. > 
Tree XVI. Hypropuiipes. 
Antenne terminated by a club. Maxillary pales ¥ P 
ie Chin or mentum clypeiform. Head wi 
t rounded, cowl-shaped. eet formed for swim~ 
ing. Tarsi with the first joint shorter than the second. 
Famity I. »Helopherida. 
psoas without teeth at their srommnitiet Maxil< 
palpi generally much shorter antennz. 
Body oblo , somewhat quadrate, or nearly 
semi-orbi , or somewhat cordate-truncate. Tibi 
slightly shines. Tarsi filiform, not ciliated, with two 
strong, acute, entire nails. 
Genus CAXXVI. Hetornorvus. Leach, 
Exopnorus, Lliger, Fabr. Latr. Olivier. 
Hypropuitvs. Geer, Marsham, 
Cl entire. i with the last joint oval, thick ; 
maxillary palpi pO i a sang shy 
* Body elliptic, agama ovate. Thorax broader 
ong. 
135. Geo-~ 
RISSUS, 
Pygmea, 
136. Heto- 
PHORUE, 
Aquaticus. 
rus aquaticus, Fabr. Olivier, Latr. 
Inhabits ditches and stagnant pools of water. 
** Body nearly linear ; thorax elongate-quadrate. 
Sp. 2, Elongatus. 
Riphores ngatus. Fabr, Latr. 
Inhabits stagnant waters in England, France and 
Germany. 
Genus CXXXVII. Ocuruesius. Leach. 
Hyprana. Latr. Illiger, 
Hypropsitus. Marsham, 
Exornorus. Paykull. 
Clypeus entire. Palpi with the last Yop slender, 
acuminate; maxillary ones shorter than the antenne. 
po 1. Riparia. 
rena riparia. eg vi , Latr. 
prygmaus. ykull. 
minimus, F: 
Elongatus, 
137. Ocu- 
THEBIUS. 
Riparia. 
Marintia. 
genus seems to constitute a peculiar wy and might be divided into some very natural genera. 
Helophorus ; the general habit of Byrrhus 3 and the tarsi of Heterocerus. 
