1892 Insects. 



24. H. pubescens, Gyll., Aube. 



— melanocephalus, Marsh., Steph., Sturm. 



— caliginosus, Steph. Man. 



— planus, Marsh., Steph. 111. 



I retain for this species the name of H. pubescens, although subsequent to melano- 

 cephalus, Marsh., in order to avoid confusion with H. melanocephalus, Gyll., Aube, a 

 very distinct species, which has not yet received any other name. 



25. H. planus, Fabr., Gyll., Sturm, Erichs., Aube. 



— flavipes, Fabr. 



— ater, Forster, Steph. 



— holosericeus, Marsh., Steph. 111. 



— pubescens, Steph., not Gyll., Aube. 



— fuscatus, Steph. 



26. H. erythrocephalus, Linne, Fabr., Gyll., Steph., Aube, &c. 

 ? var. H. deplanatus, Gyll., Aube. 



27. H. ruflfrons, Duftschm., Gyll., Sturm, Aube, Erichs. 



— piceus, Steph. 



28. H.oblongus, Steph. 



— nitidus, Sturm, Erichs., Aube. 



29. H.ferrugineus, Steph. 



— victor, Aube. 



30. H. memnonius, Nicolai, Erichs., Aube, Steph. Man. 



— subelongatus, Steph., $. 



— marginatus, Steph., $ immature, not Duftschm., Kunze, Aube. 



— deplanatus, Steph., ? , not Gyll., Aube. 



— niger, Sturm, $ . 



— jugularis, Babington, <f ? . 



— castaneus, Aube, ? . 



31. H. Gyllenhalii, Schiodte. 



— rufifrons, Steph., not Duftschm. 



— piceus, Aube, not Steph.,* not Sturm, Erichs.f 



32. H. tristis, Payk., GylL, Sturm, Erichs., Aube. 

 I have seen two British specimens of this species in Mr. Wollaston's collection ; it 



was unknown to Mr. Stephens. 



33. H. angustatus, Sturm, Erichs., Aube. 



— tristis, Steph., not Payk., &c. 



— acuminatus, Sturm. 



34. H. obscurus, Sturm, Erichs., Aube. 



— tristis, var. 3. Gyll. 



— umbrosus ? Steph. 

 This species has been taken plentifully in Ireland by Mr. Wollaston. The typic* 



specimen of H. umbrosus, Steph., is very old, and not in good preservation ; it 

 therefore only with doubt that I refer it to this species. 



* No. 27. 



f Is most probably a variety of No. 24. 



