CLASS V. INSECTA. 183 
Genus 132. THROSCUS. Latr., Leach. Elater. Linn., Oliv., 
Geoff. Dermestes. Fair., Payk., Tl/iger. 
Antenna as long as the thorax, with the three last joints large, forming 
an oval club -palpi short, with the last joint securiform; body elliptic, 
narrow, depressed. 
Sp. 1. Thr, dermestoidcs. Brown, with gray-yellowish down : elytra 
with punctated stria;. 
Elater dermestoides. Linn., Oliv. Dermestes adstrictor. Fayk., Illig., 
Fabr. Throscus dermestoides. Latr., teach. 
Inhabits European plants; is very rare in Britain. 
Genus 133. BYRRHUS. Linn., Fabr., Oliv., Lam., Latr., Illiger, 
Gyll., Leach. C-istela. Geoff, Marsh. Dermestes. De Geer. 
Antenna: a little shorter than the thorax, with the four or five terminal 
joints gradually thicker, compressed : palpi short, the last joint long- 
est, thick, somewhat ovate: body smewhat ovate, very convex 
above: scutellum minute. 
Sp. 1. Byr. Pilula. 
Inhabits pathways and sandy situations. 
Fam.XVIR Histeridje. J.each. 
Getlus Hister. Linn., Fabr., Latr., Marsh., <§'C. Histeroides. 
Gyll., Fayk. 
Antenna gcniculated, terminated by a nearly solid club of three arti- 
culations : elytra shorter than the abdomen, the margin of the sides 
indexed: tarsi with five joints; contractile. 
The insects of this Family are numerous : their habitation is the 
dung of animals, and some are found in rotten wood. A valuable 
paper has been published in the third volume of the Zoological Mis- 
cellany, from which the following is selected. 
Stirps 1. — Body thick, nearly globose or quadrate: tibia elongated 
and straight : tarsi long and slender : sternum simple. 
Genus 134. ABR/EUS. Leach’s Zool. Misc. vol. iii. 
Antenna with the first articulation somewhat elongated, second and 
third nearly cylindrical, straight : fourth short; fifth, sixth, and se- 
venth, nearly globose and equal ; eighth nearly globose, lenticular ; 
__ ninth, tenth," and eleventh forming a short oval club. 
1. Abr, perpusiltus. 
Hister perpusillus. Marsh. 
Inhabits the dung of animals. 
Genus 135. ONTHOPHILUS. Leach’s Zool. Misc. vol. iii. 
Antenna with the first joint long, the second cylindrical, closely joined 
at the base; third obconic.; fourth and fifth short and obconic; 
sixth and seventh shorter and nearly globose; eighth nearly lenti- 
cular; ninth, tenth, and eleventh forming an oval club. 
