10 DESCRIPTION or NEW COLEOrTEKA, 



This iusect was found in considerable numbers under rubbish 

 in the dry sandy bed of the river " Don." It is probably a 

 nocturnal insect, as the two following species certainly are. 

 Mr. Bates describes all those he found in the valley of the 

 Amazon as nocturnal. — (Vid. Trans. Ent. Soc, Vol. 2, new series.) 



2. — T. SCAPULARIS. 



-^neo-viridis elytris granulatis flavo-marginatis punctorum 

 linea irrcgulari subsuturali, mandibu.lis labro antennis 

 pedibusque luridis. 

 Long. 7| lin., lat. 3 lin. 

 Hab. Port Denison. 

 The head, thorax, and under side of the body are of a brilliant 

 metallic green ; the elytra, which are finely granulated, are also 

 green, but with less metallic brilliancy. The irregular line of 

 punctures near the suture of each elytron is not so well marked 

 in this species as in the last. The mandibles, labrum, antennae, 

 legs, lateral margins of the elytra, and, in the females, the ter- 

 minal segment of the abdomen, are of a dirty yellow. 



I have only two specimens of this species, both captured on 

 the wing, at night, in a lighted room. 



3. T. CRUCIGERA. 



Flava capite thorace elytrorumque vitta suturali usque ad 

 apicem haud extendente fasciaque dimidiata leneo- 

 vii'idibus. 

 Long. 8 lin., lat. 3 lin. 

 Hab. Port Denison and Rockhampton. 

 The head and thoi'ax are metallic green above and below, the 

 elytra and abdomen are yellow ; the former, which are punctate, 

 having a green cruciform mark, formed by a sutui-al vitta, 

 extending from the base to near the apex, crossed by a fascia 

 a little behind the middle, which reaches half across each elytron ; 

 the mandibles, which are only bidentated, labrum, antenme and 

 legs are yellow. 



Mr. de Chaudoii' (Bullet, de Moscou, 1850, p. 7), has sepa- 

 rated the yellow group of Mcgacephalidai, to which this insect 

 seems to belong, from the others under the generic name of 

 Phceoxantha, and Mr. Westwood subsequently gave the name 



