
MADEIRAN COLEOPTERA. 81 
219. Trox scaber**. 
Silpha scabra, Linn., Syst. Nat. i. ii. 573 (1767). 
Trox arenarius, Giyil., Ins. Suec. i. 11 (1808). 
scaber, Heer, Fna Col. Helv. i. 533 (1841). 
, Woll., Ins. Mad. 233 (1854). 
Inhabits Madeira proper, and is hitherto unique,—the single spe- 
cimen (now in the British Museum, and which may perhaps have 
been imported into the island) having been captured by the late 
Dr. Heineken. 

_—_— 

Fam. 23. GLAPHYRIDZ. 
Genus 89. CHASMATOPTERUS. 
(Dejean, Cat.) Latreille, Reg. An. iv. 567 (1829). 
220. Chasmatopterus nigrocinctus*. 
Chasmatopterus nigrocinctus, Woll., Ins. Mad. 236 (1854). 
Inhabits Madeira proper, and, like the last species, is unique,—it 
being, also, from the collection of Dr. Heineken. 
Sectio VI. PRIOCERATA. 
Fam. 24. BUPRESTIDA. 
Genus 90. AGRILUS. 
(Megerle) Steph., 7. Brit. Ent. iii. 239 (1830). 
The detection of a single specimen of an Agrilus in these islands, 
since the publication of the Jnsecta Maderensia, has introduced a new 
family into our Catalogue,—the Buprestide: and without entering 
here into the characteristics of that group, which contains some of 
the most gorgeous, brilliantly coloured members of the Coleoptera, 
approaching in outline and structure to the Hlateride (though with 
their hinder prothoracic angles only slightly or not at all produced), 
but which do not possess, when placed upon their backs, the power 
of springing ; we may state that the Agrili are mainly distinguished 
from their allies by their usually narrow and subcylindrical bodies, 
by their scutellum being broad (and raised) at its base and abruptly 
acuminated at its apex, by their prosternum being largely developed 
in front (so as almost to conceal the mentum), and by their tarsi 
being rather long,—with the first joint of the hinder ones more 
elongated than is the case in the Buprestide generally. 
