26 GENERIC SYNOPSIS. 
antennal joint longer than_the fifth, the eleventh short and broad. Herbst. 
pl. 161. ft: 
LIMONIUS Esch. Exarer A.b.c. Steph. 7sp. El. Bructeri Fab. Pz. 34.13. 
Frontal carina distinct ; basal joint of tarsus rather shorter than second ; second 
and third antennal joints very minute; body oblong, subeylindric; thorax 
elongate, convex. 
ELATER Linzn., Esch., Latr., Steph. (p.) 9 sp. El. sanguineus Linn. 
Basal plates suddenly dilated within, and toothed in the middle; tarsi setose, the 
joints gradually smaller; frontal carina distinct; body depressed; sides of 
thorax not dilated. Don. pl. 508. f. 2. 
PROSTERNON Latr. Exater B. 2.* Steph. 1 sp. El. holosericeus Fab. 
Body suboval, subdepressed, very pubescent ; thorax dilated at the sides; antenne 
with the second and third joints not dilated, and smaller than the fourth; claws 
simple. Herbst. Col. 161. f. 9. 
AGRYPNUS Esch. Eater B. 2.** Steph. 3sp. El. murinus Linn. 
Body suboval, subdepressed, very pubescent ; thorax dilated at the sides; antenne 
with the second joint dilated, the first large; tarsi without soles; posterior 
margin of thorax with a central tubercle. Herbst. 161. f. 8. 
5 Hyvouitruus Esch. ate 
HYPNOIDUS Dillw. St. Cicnigeee Zacn, } 6 sp. El. riparius Fab. 
Frontal carina distinct; palpi broad, securiform; scutellum broad; antenne 
thick, subperfoliate, with the second and third joints almost as large as the others. 
Pz. 34. 12. 
DRASTERIUS Esch. Srtarosomus p. Steph. 1sp. El. 2-maculatus Fab. 
Palpi acuminate ; tibie externally, with long cilie; posterior trochanters suddenly 
dilated within; frontal carina distinct. Pz. 76. 9. 
MELANOTUS Esch. Perimecus St. Isp. El. fulvipes Abst. Hbst. 46. 162. 2. 
Antenne serrated, with the second and third joints short, the eleventh long, 
slender ; body attenuated behind ; posterior thoracic angles large ; tarsi slender, 
simple; claws serrated. 
LUDIUS Latr. Srearoprrus Esch. 1sp. El. ferrugineus Linn. Don. 356. 1. 
Antenne strongly serrated; the second and third joints very small, eleventh 
abruptly attenuated at the tip; posterior trochanters spined within. 
CTENICERUS Latr. Corymeires Latr. (Ann.) 7 sp. El. pectinicornis Linn. 
Antenne ¢ often strongly pectinated, with the second joint minute; labrum 
transverse ; posterior trochanters narrow, lanceolate ; frontal carina wanting. 
Donov. 356. 2. 
SELATOSOMUS Steph. Diacantuus Latr. (Ann.) 2sp. El. eneus Linn. 
Body broad, glabrous ; antennz short, serrated, with obconie joints, the third as 
large as the following; tarsi simple, without soles; thorax gibbous. Donovy. 
535. f£. 1, 2. 
CARDIOPHORUS Esch. Catoverus Steph. 3sp. El. thoracicus Fab. 
Scutellum cordate; posterior femora thicker than the others; tarsi slender, 
simple ; thorax immarginate, very gibbous ; third joint of antenne as large as 
the fourth. Pz. 6. 12. 
ATHOUS Esch. Anaturotus Steph. 10 sp. Li. vittatus Fab. Don. 518, 2. 
Frontal carina distinct ; basal joint of tarsi as long as the two following, united, 
the third joint triangularly dilated, spongy ; labrum narrow, transverse ; palpi 
short, slender. 
