1840.] Linnean Society. 79 



iEneo-viridis ; thorace lateribus externe serrulatis et varioloso-punctatis, 

 sulco longitudinal! in medio dorso fortiter impresso, elytris nigro-seneis 

 maculisque croceis insignitis. 

 The insect which forms the tj'pe of the above new genus, has 

 been named in compliment to Mr. W. S. MacLeay. It forms, 

 along with Eucheirus of Kirby, and Protomacrus of Newman, a 

 small natural famUy, which has been termed by the author Euchei- 

 rida, and is regarded by him as related to the Dynastidce, and con- 

 stituting a link of connexion with the Goliathida. 



LAMIA. 

 1. Z. Swainsoni. 



Long. uuc. 1 , lin. 4 ; lat. Hn. 6. 



Brunnea; thorace utrinque spinoso, dorso convexo in medio bulboso, 

 elytris concoloribus albo-variegatis et ad basin nigro-tuberculatis. 



This species, which has been named after Mr. Swainson, appears 

 to constitute a subgenus related to EuopUa, described in the first 

 part of the account of Assam Insects at p. 42. 



MONOCHAMUS. 

 1. M. heryUinus. 



Long. lin. 8 ; lat. Im. 3. 



Cceiuleo-beryllinus ; antennis griseis, thorace utrinque spinoso elytrisque 

 nigro-maculatis. 



STIBARA. 

 Corpus Saperdreforme, crassum, robustiim. Caput latum, antice fer^ 

 quadratum, postice convexum. AntenncB cor^ove breviores, 11-articu- 

 latas. Thorax robustus, nodosus, inermis. Elytra lata, thorace vix 

 triple longiora, apicibus abmpte truncatis, lateribus elevatis. Pedes 

 femoribus incrassatis, tibiis robustis. 



1. S. teiraspllota. 



Long. lin. 10; lat. lin. 3^. 



Aurantio-rubra ; antennis oculisque nigris, thorace nodoso, elytris conco- 

 loribus, macula magna ovali nigra ad Immeros posita, apicibus nigris. 



2. S. trilineata. 



Long. lin. 9 ; lat. lin. 3. 



Pallide castanea ; antennis albo-cinctis, thorace nodoso utrinque denticu- 

 lato, elytris lineis 3 nigris insignitis, sutura latiori, lateribus punctatis, 

 punctis duplici serie ad disci medium fortissimfe insculptis. 



A new genus belonging to the SaperdidiE, to which family the 

 Lamia nigricornis is also refenible, besides several other tj-pes of 

 undescribed genera. 



