304 Entomological Society. 



Corpus valde gibbosum, pedibus brevissimis ; caput untice bitubercu- 

 latum; antenna: \Q-articulatce; mandibulce comece ad apicem extus 

 curvatcB, angulo externo in dentem subrecurvum proininentetn pro- 

 ducto ; maxillcB lobo externo producto tridentato. 

 This genus appears to be confined to tlie islands of the Indian 

 Ocean, especially those of the Philippine range. It is the first in- 

 stance on record of a Rutelideous insect found in that quarter of the 

 globe. 



Sp. 1. Parastasia canaliculata, W. Nigra, 7iitida,elytris fulvo-va- 

 riegatis plagis duabus elevatis, obliquis utrinque versus scutellum. 

 Long. Corp. lin. 9^. Hab. Philippine Islands, Cuming. Mus. Hope. 



Sp. 2. Parastasia bipunctata, W. Nigra, prothorace rufo, nigro- 

 biitunctato , elytris nigris, basifulvis, singuli maculis duabus nigris. 

 Long. Corp. lin. 8|^. Hab. Philippine Islands, Cuming. Mus. 

 Brit. 



Sp. 3. Parastasia discolor, W. Nigra, prothorace rufo, elytris 

 castaneo-rufis, basi scutelloque obscurioribus . Long. corp. lin. 

 71. Hab. Philippine Islands, Cuming. Mus. Brit. 



Sp. 4. Parastasia nigriceps, W. Luteo-fulva, capite, prothoracis 

 maculis duabus alterisque duabus ad basin elytrorum tarsisque 

 nigris. Long. corp. lin. 5|. Hab. PhiUppine Islands, Cuming. 

 Mus. Brit. 



Sp. 5. Parastasia confluens, W. Nigra, prothorace in medio rufo 

 et impresso, elytris obscure rufis, singulo maculis duabus luteis 

 ovalibus contiguis ante medium positis. Long. corp. lin. 5|. 

 Hab. Philippine Islands, Cuming. Mus. Brit. 



Sp. 6. Parastasia binotata, W. Nigra, elytrorum singulo macula 

 magna, prope scutellum fulva. Long. corp. lin. 8^. Hab. Java. 

 Mus. Melly and Curtis. 



Sp. 7. Parastasia Westwoodii, Waterh. MSS. Piceo-brunnea, 

 sordide opaca, thorace utrinque plagis obliquis fasciaque obscura 

 in medio elytrorum nigris antennis basi femoribus tibiisque lucidi- 

 oribus. Long. corp. lin. 5|. Hab. Sumatra. Mus. Zool. Soc. 



Sp. 8. Parastasia Horsfieldii, W. Nigra, elytris postici piceis. 

 Long. corp. lin. 9|. Hab. Jr.va, Horsfield. Mus. East Ind. Comp. 



Sp. 9. Parastasia bicolor, W. Nigra, prothorace miniato. Long, 

 corp. lin. 6. Hab. Java, Horsfield. Mus. East Ind. Comp. 



Mr. Westwood also exhibited figures of many new Lamellicorn 

 groups, which he had for some time past been preparing for publica- 

 tion. 



Professor Burmeister (who was present) stated, in confirmation of 

 Mr. Westwood's observations on the relation of Cryptodus with the 

 DynastidcE, that he had observed that the tarsi and ungues in that 

 genus were dissimilar in the sexes, as in some of the aberrant Dy- 

 nastidcE, and that the genus Trionychus of Dejean appeared to him 

 the nearest relation to Cryptodus, which he considered to be in no 

 wise related to the Cetoniida, as regarded by Mr. MacLeay. 



