BY REV. T. BLACKBURN. 261 



difference that I can specif}^ is in the sculpture of the elytra, and 

 consists in the seriate punctures being in geniciduta absolutely 

 mere rows of punctures with the intervals between puncture and 

 puncture in the rows perfectly level with the surface of the inter- 

 stices, while in lo the seriate punctures run in very faint and 

 scratchy (but distinctly traceable) striae. The yellow vittfe on 

 the elytra of lo occupy the front half of the 2nd interstice (in 

 one specimen extending over the abbreviated 1st interstice), the 

 whole of the 4th interstice, and the front | of the 6th interstice. 

 The 8th interstice also is slightly streaked with yellow, and the 

 margin is widely yellow. These yellow vittae are in places slightly 

 wider than the interstices, so that here and there the seriate 

 punctures are on the vittse, and where that is the case they have 

 not the black line (accompanying the series in geniculata) which 

 one would expect to find if this species were merely a variety 

 (with the black colouring increased) of the preceding. I cannot 

 doubt that the female described above is the female of lo (although 

 possibly a variety of the female), as it differs from the male in 

 respect of elytral markings in no respect whatever except in the 

 markings being red instead of yellow. The black spots on the 

 prothorax are larger than in any of the males before me, and the 

 dark under surface and legs make this female differ from its male 

 in the contrary way from those of allied species in which the 

 female is usually the moi-e lightly coloured sex. 



N.S. Wales; Blue Mountains; taken by Messrs. Masters and 

 Simson. 



P. Atalanta, sp.no v. 



P. yeniculntce (ut supra descripta) valde affinis ; differt pro- 

 thorace nonnihil magis transverse, elytris manifesto striatis, 

 et colore. 



(J. Testacea vel brunneo-testacea ; capite baud inter oculos, 

 prothorace haud in disci medio, nigro-notato ; prothoracis 

 maculis 2 vel 4 parum determinatis, elytrorum maculis 1 

 subbasali 1 brevi in sutura media 3que subapicalibus trans- 

 versim positis piceis vel nigricantibus (e maculis, nonnuUis in 

 exemplis nonnullis, carentibus), corpore subtus plus minusve 



