64 MADEIRAN COLEOPTERA; 
172. Cholovocera Maderz. 
Coccinella succina, Heinecken, in litt. 
Cholovocera Maderze (Westw.), Woll., Ins. Mad. 180. tab. x. f. 1 
(1854), 
Inhabits Madeira proper (probably in ants’ nests) ; extremely rare. 
It is hitherto unique, the single specimen (which was collected by 
Dr. Heinecken) being in the British Museum. 
Genus 66. HOLOPARAMECUS. 
Curtis, Ent. Mag. i. 186 (1833), 
173. Holoparamecus niger. 
Calyptobium nigrum, Chevrier, in litt. 
Aubé, Ann. de la Soc. Ent. de France (2i*me série), 1. 246 

(1843). ” 
Holoparamecus niger, Woll., Ins. Mad. 182 (1854). 
Inhabits Madeira and Porto Santo, occurring beneath stones and 
scori, in sunny spots of a low elevation. 
Genus 67. CORTICARIA. 
Marsham, Ent. Brit. i. 106 (1802). 
174. Corticaria rotulicollis. 
Corticaria rotulicollis, Woll., Ins. Mad. 184 (1854). 
Inhabits Madeira proper, at low and intermediate altitudes. Rare. 
175. Corticaria crenicollis*. 
Corticaria crenicollis, Mann., in Germ. Zeit. fiir die Ent. v. 37 (1844). 
+, Woll., Ins. Mad. 185 (1854), 
Inhabits Madeira proper, occurring in houses, &c., around Funchal. 
Perhaps introduced. 



+ The distinctions between the C. crenicollis, as defined in the Insecta Made- 
rensia, and the C.fulwa are not sufficiently well expressed in that volume,—for 
being both of the same pale-ferruginous hue and pubescent surface, and being 
moreover usually found in company, they are not at first sight easily separable. 
It is only indeed with the aid of the microscope that the differences can be fully 
appreciated ; but when viewed under a tolerably high power, the head and pro- 
thorax of the C. crenicollis will be at once perceived to be almost wapunctured, 
though coarsely granulose, whilst those of the fulva are beset with punctures 
both large and deep. The prothorax of the crenicollis, moreover, is not quite 
so rounded, or so crenulated, at its sides as that of the fulva ; its forehead is 
slightly wider, with the eyes not quite so prominent ; its antenne are just per- 
ceptibly longer and paler; and its elytra are perhaps a little more shining. 
Whether it be the true erenicollis of Mannerheim, or merely the male sex of the 
C. fulva, 1 will not undertake to decide for certain. 
