298 Mr. T. Vernon Wollaston on 
being appreciably less pale, and its elytra (instead of 
being concolorous with the prothorax) merging into 
almost a piceous-black. Its elytra too are perhaps just 
perceptibly more convex, and have their three longitu- 
dinal rows of punctures somewhat more developed. The 
following brief formula will suffice to place it upon 
record. 
Mycetoporus Johnsoni. 
Var. 8, lubrica [an species vera ?]—plerumque paulo 
major, elytris antennisque (precipue illis) obscurioribus, 
punctorum seriebus tribus in elytris sensim distinctiori- 
bus (¢. e. minus obsoletis). 
Long. corp. lin. 1—vix 1}. 
Hab.—Maderenses (Mad.) ; sub folia dejecta necnon 
inter quisquilias supra S. Antonio da Serra, tempore 
vernali 1870, haud infrequens. 
p. 485 (genus Hersrornops). 
(Sp. 13837) Heterothops minutus. 
This widely-spread Heterothops, so nearly universal 
(particularly amongst the refuse around the base of 
corn-stacks, as well as in gardens and other cultivated 
grounds) throughout the Madeiran and Canarian archi- 
pelagos, would appear after all, according to Mr. Rye 
(who has studied the genus with particular care), to be 
inseparable from the common European H. dissimilis ; 
and I would desire therefore to correct its synonymy 
accordingly. I may just add however that M. Fauvel, 
though with singular want of precision, identified 1it 
(I? Abeille, vi. 150) with Erichson’s H. previus—a species, 
nevertheless, from which it is totally distinct. * 
Heterothops dissimilis. 
Tachyporus dissimilis, Grav., Col. Micropt. 125 (1802). 
Heterothops dissimilis, Kraatz, Nat. der Ins. Deutsch. i. 
* According to a very valuable paper by Mr. Rye in the ‘Ent. Month. 
Mag.’ (iv. 256), the T. previus, apart from the fact of its elytra being 
perceptibly longer than its prothorax, ‘‘may be distinguished from the 
dissimilis (the most abundant and widely distributed in the genus) by its 
broader head and shorter and stouter antenne, the joints whereof are 
sub-obconic, the apical ones being not longer than broad, and the basal 
ones pitchy-red, by its much more finely and closely punctured abdomen, 
and by its darker legs.”’ 
