MADARELLUS. 381 
upper surface varies in colour from nigro- to rufo-piceous, and usually has a bright 
brassy lustre. The elytra are depressed at the base, on the disc beyond the middle, 
along the suture anteriorly, and at the sides below the humeri, and have sharply-cut, 
distinctly punctate strie. The length varies from 23-32, and the breadth from 
1-2 mm. 
6. Madarellus mexicanus. 
Madarellus mexicanus, Solari, Ann. Mus. Genova, xlii. p. 426 (1906) °. 
Hab. Mexico, Jalapa * (Hége +). 
This species is represented in our collection by a very small reddish specimen 
(length 24 mm.) from Jalapa, the types (which I have seen) being much larger and 
broader. It may be known by the brilliant eneous surface and the finely striate 
elytra, the prothorax with very minute widely-scattered punctures on the disc. The 
tooth on the anterior femora is stout and subtriangular. ‘The striz are almost as fine 
as in WV. striatulus, and faintly punctate. 
7. Madarellus striatulus, sp. n. 
Cuneiform, shining, black, the tarsi sometimes ferruginous, the punctures of the under surface and legs each 
bearing an excessively minute whitish scale. Head sparsely, very finely punctate, transversely grooved 
between the eyes; rostrum strongly arcuate, stout, about as long as the head and prothorax, closely 
punctate, the antenne inserted behind the middle. Prothorax transversely convex, rounded at the sides 
anteriorly, tubulate in front; almost smooth, the lateral portions finely, obliquely strigose. Elytra 
subtriangular, strongly, transversely depressed at the base and at the sides before and beyond the 
middle ; very finely and lightly striate throughout, the strie almost impunctate, the interstices smooth. 
Pygidium transverse, densely punctate. Beneath coarsely, a broad space down the middle sparsely and 
finely, punctate, the propleura obliquely strigose. Prosternum with two sulci. Legs rugosely punctate ; 
anterior femora with a triangular tooth; anterior tibis sinuate within ; anterior tarsi slightly dilated 
and hairy in the ¢. 
Length 22-3, breadth 13-14 millim. (¢ ?.) 
Hab. Guatemata, Livingston (Barber, in US. Nat. Mus.), Cahabon (Champion) ; 
Panama, Volcan de Chiriqui (Champion). 
One specimen from each locality. In this species the elytra are very finely and 
lightly striate throughout, a character distinguishing MW. striatulus from nearly all the 
allied forms here enumerated. ‘The upper surface is black, as in MM. tmpressus, 
Kirsch, and the transverse basal depression of the elytra is deep and abrupt. 
8. Madarellus puniceicollis, sp.n. (Lab. XIX. figg. 13, 13a, ¢ .) 
Cuneiform, shining, black, the prothorax, and in one specimen the under surface in part, rufous, almost 
glabrous. Head finely punctate, transversely grooved between the eyes ; rostrum a little longer than the 
head and prothorax, moderately stout, thickened towards the base, finely punctate, the apical half 
* The dealer’s locality given by Solari, “ Sierra de Durango,” is almost certainly incorrect, the insect 
doubtless being from Vera Cruz. 
