Rev. F. W. Hope on some new Insects collected in Assam. 441 



gricanti, fasciis binis ochraceis notato, prima ante medium disci posita 

 atque ad suturam vix extensa, secunda integra at latiori. Corpus infra 

 ochraceo-flavum, pubescentia subaurat^ obsitum. Pedes femoribus fusco- 

 flavis, tibiis tarsisque pallidioribus. 



This insect also inhabits Assam, and is in the collection of Mr. Solly. It is 

 named in honour of its discoverer Mr. Griffith, an acute and enterprising 

 botanist, author of a valuable memoir on the Development of the Ovulum of 

 Santalum and Loranthus, printed in the 18th volume of the Society's Trans- 

 actions. 



The clothing of this species I can only compare to an fnferior velvet or a 

 sort of plush ; when rubbed it exhibits the appearance of bronze, and in places 

 it resembles a rose-coloured copper. It is remarkable for a peculiarity of 

 colouring, which I regard as of very rare occurrence. It appears as if the 

 colouring matter of the second fascia had run, and had overwhelmed the black, 

 the yellow-ochre taking its place. 



MoNOCHAMUS. Megerle. 

 Monochamus Ruber. 



Tab. XXX. fig. 5. 



Long. lin. 11. Lat. lin. A\. 



Ruber ; antennis corpore duplb longioribus, thorace elytrisque nigro-maculatis, 

 pedibus concoloribus. Caput antice nigrum, postice rubrum. Antennas 

 longissimae, nigrse. Thorax disco rubro, spinis utrinque atris. Elytra 

 rubra, humeris, scutello, maculisque variis nigris sparsim dispositis. 

 Corpus infr^ nigrum, pectore, segmentis abdominis utrinqu^ rubro-raa- 

 culatis. Pedes atri, plantis fusco-spongiosis. 



The above species, remarkable in its colouring, is also from Assam. I know 

 of no species allied to it. The red colour, after the death of the insect, changes 

 to a pale orange. I have seen some specimens so bleached by the light that 

 casual observers would regard them as distinct species. 



3 M 2 



