On new Species 0/ Ilistoridae. 179 



XV. — On nexo Species r)/'IIisteri(],t*, and Notices of others. 

 By G. Lewis, F.L.S. 



I ITAVE lately received some very interesting species of 

 Histeritlaj tVoni 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 

 notcson the habitatsof his captures, which enable me to record, I 

 believe for the first time, that the g^enns Pac/iycnerus 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 Tryponcvi^ specially suited for traversing very narrow or 

 cylindrical passages. The habit also of Paratropus [Phijllo- 

 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 Packycrcerus 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 llylesinus, F., or 

 some tropical forms similar to SpcerotrypeSy Blandford, species 

 with short elytra, which enables them to turn round in a 

 very small space. 



List of Species. 



Phylloma hirtipes. Hister rivalis. 



Anaglymiua consobrina. Mavshalli. 



Pachycr?eru3 striaticeps. latistrius, Lew. 



frater. rubricatus. 



meridianus. Coproxenus Marslialli. 



spatiosus. opacipennis. 



cariniceps. Paratropus fungorum. 



tenuistriatus. Triballus agrestis, Mars. 



cavifrons. Pygocoelis africanus. 



brevipennis. duplicatus. 



sulcicollis. Trypobius piuguis. 



mimicus. sethiops. 



Hister intrepidus. cylindraceus. 



Phyllorria hirtipes, sp. n. 



Oblongo-ovatum, complanatum, nigrum, nitidum ; fronte impressa, 

 tenuissirae punctulata, obsolete bistriata ; pronoto lateribus 

 punctato, punctis aliquando confluentibus ; abdomine segmentis 

 3-4 utrinque prominulis. 



L. 8-8i miU. 



