436 Rev. F. W, Hope on some new Insects collected in Assam. 



The major part of the selected species belong to the Longicorn Beetles, and 

 as I do not accord with the arrangement of Monsieur Audinet Serville (pub- 

 lished in the French Entomological Transactions), particularly in the group- 

 ing of the Lamiadce of Leach, it may be adviseable to commence with some 

 short observations on the Lamiadce. 



The typical species of Lamia, according to Fabricius, was Lamia Gigas ; 

 that species is now detached from Lamia by Serville, under the generic name 

 of Omacantha. The type of true Lamia, according to the above author, at 

 present appears to be either Lamia Ruhus, Fab., or some other closely allied 

 species. He has, however, included under the same head three other species, 

 differing considerably in form, and which may be regarded as subgenera be- 

 longing to another family. The natural sections of Lamia appear to be three ; 

 first, those which have the sutural apex of the elytra acuminated, each wing 

 being internally more or less spiny, whilst the lateral angles are invariably 

 rounded ; secondly, those which have the sutural apex spiny, as well as the 

 lateral angles spinose ; and thirdly, those which have the elytra rounded at 

 the apex, and without any spines medial or lateral. The last section requires 

 still further subdivision, and most willingly do I leave that task for others. It 

 is time, however, to proceed to the description of the species. 1 commence 

 with true Lamia. 



Lamiadce, Leach. 



Lamia Horsfieldii. 



Long. lin. 26. Lat. lin. S\. 



Corpus cinereum ; antennis corpore longioribus elytrisque flavo-cretaceis ma- 

 culisque ornatis. Antennae articulis tribus primis subscabris. Thorax 

 utrinqufe spina valida acut^ armatus. Elytra nebulosa, basi rugosa, apice 

 unidentata, maculis flavo-cretaceis aspersa. Pedes corpore concolores. 

 Corpus infra cinereo-nebulosum, marginibus capitis et corporis albidis. 



This magnificent species I have named in honour of Dr. Horsfield, the au- 

 thor of a valuable work on the metamorphosis of Indian Lepidoptera. With 

 regard to size, the species ranks amongst the largest of the Lamiadce which 

 have yet been described as belonging to the East. Lamia catenata of De 

 Haan, from Japan, is a species closely allied to it. It differs, however, in 



