408 Mr. S. H. Scudder on new Genera 



From 67. nepalensis*, to which this species is most nearly 

 allied, it differs in its decidedly darker primaries, its more fal- 

 cate, more elongated, and altogether larger wings, and the 

 (consequently) larger orange spots on the wings, also in the 

 less sinuous outer margin of the secondaries : from 67. aspasia 1 

 to which most of these very characters prove its affinity, it 

 differs in its slightly paler primaries and darker secondaries ; 

 the brown edging to the wings and the distinct separation of 

 the under surface into two colours, as in the G. rhamni group. 



The following species was captured on Mount Tabor by B. 

 Lowne, Esq. : — 



Gonepteryx antonia, sp. n. 



Nearest to G. cleopatra, of the same brilliant yellow above, 

 but with the large diffuse orange patch on the primaries 

 replaced by a much paler diffused saffron-yellow nebula, and 

 not extending so near to the margins. Under surface almost 

 as uniformly coloured as in G. rhamni, whereas in G. cleopatra 

 the costal area of primaries and the secondaries are of a chalky 

 greyish-green tint. Expanse of wings 62 millim. 



Mount Tabor, Syria. B. M. 



This species must be placed between G. rhamni and G. 

 cleopatra. 



X XXVII. — Neio Genera and Species of Fossil Cockroaches 

 from the Older American Rocks. By Samuel H. ScUDDEiif- 



Since the publication of my essay on Pakeozoic cochroaches J, 

 a considerable number of new types of Paleeoblattarige have 

 come to hand, largely through the endeavours of Mr. R. D. 

 Lacoe, to whose favour I owe the opportunity of studying 

 them, and partly from my exploration of an interesting loca- 

 lity in South Park, Colorado. Some of the former have 

 since been published in a revision of the species of Mylacris §, 

 and the more interesting of such as remain are described in 

 this paper. 



The two new genera of Mylacrida are closely allied to, but 

 differ considerably from, the known genera. Of the Blatti- 

 narias, the species of Oryctoblattina is the first secured from 



* I originally recorded the male under this name, not haying placed 

 it side by side with the Indian species ; it is doubtless a similar omission 

 which has led Mr. Pryer to regard it as G. rhamni. 



t From the 'Proceedings of the Academy of Natural Sciences of 

 Philadelphia,' March 10, 1885, pp. 34-39. 



% Mem. Bost. Soc. Nat. Hist. iii. pp. 23 et seq. 



§ Ibid. iii. pp. 209 et seq. 



