366 NEW SPECIES OF COLEOPTEROUS INSECTS. 



Head pitchy-black, glabrous: proiJiorax pitchy-black, 

 with a longitudinal median line of a redder hue, and the late- 

 ral margins broadly bordered with white : elytra pitchy-black, 

 with a broad, white, lateral, marginal line, and two conspi- 

 cuous white spots on each ; of these the anterior is about 

 equidistant from the sutural and lateral margins, and near- 

 ly touches the basal margin, at its lower extremity it is 

 notched ; the posterior is more elongated ; it touches neither 

 of the margins : the under parts of the insect, together with 

 its legs, are pale testaceous. 



Inhabits New Holland. A single specimen taken by Mr. 

 A. H. Davis near Adelaide. 



Natural Order.— CETONIITES, Newman. 



Genus. — Diaphonia, Newman. 



E Cetonid prsBcipue difFert antennaram sexubus duobus discrepantia ; la- 

 mellis in mare elongatis, in fcemind abbreviatis. 



The sexes of the species I am about to establish are so 

 dissimilar, that when my specimens are placed in public col- 

 lections, I cannot but anticipate their being described as dis- 

 tinct species, I have therefore saved entomologists this labour 

 by describing and assigning a name to each sex. 



Sp. 1. Dia. dispar, ^ et 2 - 



^ {Dia. Ulysses). Antennarum capitulo sordide ferrugineo: caput ni- 

 grum : protborax testaceus, plaga magna mediana nigra signatus : scu- 

 tellum nigrum : elytra testacea, vitta suturali nigra : podex testaceus, 

 abdominis maculis 4 lateralibus nigris; caetera nigra. (Corp. long. 'Qunc. 

 lat. '5 unc.) 



$ {Dia. Penelope). Nigerrima; antennarum capitulo, protboracis 

 marginibus anticis, singuli elytri linea longitudinal! , basali, abdominis 

 maculis 4 lateralibus, podicis maculis 2 magnis fere quadratis, ferrugi- 

 neis. (Corp. long. 1*1 unc. lat. "65 unc.) 



Head and prothorax thickly punctured, scarcely glabrous, 

 scutellum having a few scattered punctures : elytra rugose, 

 with numerous foveas formed by large confluent punctures ; 

 each elytron has also three raised smooth stri(B^ the first su- 

 tural, the second at a considerable distance from the first ; 

 both these are very distinct ; the interstice between the se- 

 cond and third, which is very indistinct, is less than that be- 

 tween the first and second : these strim, and the rugosity of 

 the elytra, at once distinguish this species from the Cetonia 

 dorsalis of Donovan, which also belongs to the genus Dia- 

 phonia . the protibice are furnished with two strong teeth. 



