124 MADEIRAN COLEOPTERA, 
in its compressed, unclavated femora, Criocephalus agrees with Stro- 
matium; nevertheless its antenne (especially of the females) are 
shorter than in that genus, its prothorax is rounder, and its eyes are 
very much less emarginated at their inner edge,—being in fact reni- 
form. Its maxillary lobes also are much more slightly developed, 
the internal one being short and rudimentary. 
373. Criocephalus rusticus**. 
C. fusco-niger vel fuscus opacus ecreberrime et subtiliter pubescens, 
prothorace rotundato ineequali dense punctulato, elytris subtilis- 
sime et crebre rugulosis, singulo striis duabus distinctis longitudi- 
naliter instructo. 
Long. corp. lin. 6-12. 
Cerambyx rusticus, Linn., Fra Suec. 492 (1746). 
Callidium rusticum, Steph., Ill. Brit. Ent. iv. 246 (1831). 
Criocephalus rusticus, Muls., Longic. de France, 63 (1840). 
, Lueas, Col. de V Algérie, 490 (1849). 
C. large, linear, brownish-black (occasionally entirely rusty-brown), 
opake, and densely clothed all over with a very short, fine, decum- 
bent, dark pubescence. Antenne rather short in the female sex, 
long in the male. Head and prothoraw very closely and finely 
punctulated: the former with a deeply impressed longitudinal line 
between the antenne: the Jatter suborbicular, being much rounded 
at the sides ; and with its surface unequal. Hlytra most minutely 
and densely rugulose (scarcely punctured) all over; with two 
distinct longitudinal striz down each, and the rudiments of a 
third towards either outer margin. Limbs nearly concolorous with 
the rest of the surface. 


The present insect, which ranges over a large portion of Europe, 
and which is found also in the north of Africa and the Canary 
Islands, was first detected in Madeira, by myself, in September 1855, 
—when I met with several specimens between the loosened chip- 
pings of fir-trees in a plantation belonging to Mr. Bean at Camacha. 
In the following month of the same year, however, it was taken 
abundantly by Mr. Bewicke, in a similar position, in the same parish, 
—though at a somewhat higher elevation; and it is probably to be 
met with throughout the entire district, towards the south and east 
of the island, in which the pine woods have of late years been so 
extensively planted. 
Genus 149. HYLOTRUPES. 
Serville, Ann. de la Soc. Ent. de France, iii. 77 (1834). 
Hylotrupes agrees with Phymatodes in the abrupt clavation of its 
femora ; nevertheless its antenne are shorter (with their third joint 
