On new Species of Histeride. 179 
XV.—On new Species of Histeride, and Notices of others. 
By G. Lewis, F.L.S. 
I HAVE lately received some very interesting species of 
Histeride from Cameroon, on the West-African coast, and also 
a very good collection made by Mr. Guy A. K. Marshall in 
South Africa. Mr. Marshall’s collection was accompanied with 
noteson the habitats of his captures, which enable me to record, I 
believe for the first time, that the genus Pachycrerus consists of 
species attached to timber, as four or five species are registered 
as being found “under bark ” and “in rotten logs.” These 
species are doubtless entomophagous, but they are not, like 
the Tryponet, specially suited for traversing very narrow or 
cylindrical passages. ‘The habit also of Paratropus (Phyllo- 
scelis) has been noticed by Mr. Marshall: the species seek their 
prey in fungi. The larger species of Hister—H. validus, Er., 
and H. fortis, Sch.—are associated with stercoraceous insects 
or feed on carrion. It will be observed also by the present 
paper that the genus Pachycrerus is partly made up of very 
curious species, with heads almost wholly excavated, and 
their bodies short and cylindrical ; the insects are probably 
attached to wood-boring beetles, such as Hylesinus, F., or 
some tropical forms similar to Sperotrypes, Blandford, species 
with short elytra, which enables them to turn round in a 
very small space. 
List of Species. 
Phylloma hirtipes. 
Anaglymma consobrina. 
Pachycreerus striaticeps. 
Hister rivalis. 
— Marshalli. 
—— latistrius, Lew, 
frater. rubricatus, 
—— meridianus. Coproxenus Marshalli, 
spatiosus, opacipennis. 
cariniceps. Paratropus fungorum. 
tenuistriatus. Triballus agrestis, Mars. 
cavifrons. Pygoccelis africanus. 
brevipennis. duplhiatus. 
sulcicollis. Trypobius pinguis. 
mimicus. —— ethiops. 
Hister intrepidus. —— cylindraceus, 
Phylloma hirtipes, sp. n. 
Oblongo-ovatum, complanatum, nigrum, nitidum ; fronte impressa, 
tenuissime punctulata, obsolete bistriata; pronoto lateribus 
punctato, punctis aliquando confluentibus ; abdomine segmentis 
3—4 utrinque prominulis, 
L. 8-84 mill. 
