Mr. E. Newman on tho. Synonymy q/' Passandra. 303 



XXXV. — Supplementary Note to the Synonymy 0/ Passandra. 

 By Edward Newman^ F.L.S.* 



I HAVE just received from Mr. Melly of Liverpool his spe- 

 cimens of the Passandra, together with two other highly cu- 

 rious Coleoptera : one of the PassandrcB and both the others 

 are undescribed, and I therefore hasten to avail myself of that 

 gentleman's kind permission to lay descriptions of them be- 

 fore the public. 



Genus Catogenus, Westwood, 



Sp. 5. Cato. decoratus. Niger, nitidus ; elytrorum fascia lata pone 

 medium, abdomineque subtusferrugineis.-prothoraxpunctatus disco 

 postice^ obscure bifosso, lineaque longitudinali utrinque impresso : 

 elytra striata. (Corp. long. '275 unc. ; lat. '75 unc.) 



Black, shining ; the elytra having a broad ferruginous band 

 rather behind the middle, and the abdominal segments beneath 

 being of the same colour : the head is sculptured as in the other 

 species of the genus, having a deep posterior transverse fur- 

 row, on each side a longitudinal marginal furrow, two deep 

 oblique frontal impressions, and a somewhat circular impres- 

 sion on the clypeus : the prothorax is deeply punctured, pos- 

 teriorly it has a somewhat double longitudinal impression com- 

 posed of deep and confluent punctures ; on each side it has 

 an obvious but not deep longitudinal furrow : the elytra are 

 striated, the sutural stria and the 7th on each elytron being the 

 deepest and being united at the apical angle ; the 2nd, 3rd, 

 and 4th are distinct, and continue nearly to the apex ; the 5th 

 and 6th are abbreviated and terminate in an indistinct series 

 of punctures. 



Inhabits the island of Chiloe. A single specimen taken on the 

 west coast of that island is in the cabinet of Mr. Melly. 



Genus Omma, Newman, 



Caput exsertum, porrectum, cum ocuhs prothorace pauUo angus- 



tius ; oculi rotundi, prominentes, laterales ; antennse submoniliformes, 



prothorace breviores, ll-articulatse, articulus P^ cseteris crassior, 2"* 



brevior, 3"^ longior. Mandibulae validae, curvatae, apice tridentatae ; 



* The paper alluded to was published in the second volume of this Jour- 

 nal, page 388. 



