Manchester Memoirs, Vol. Ixi. (1Q17), ISo. *J. 13 



Body. — That the body of the insect still lies underneath 

 the wing is clearly evident. The metanotum shows up through 

 the thin anal areas, and there are also visible a few of the 

 anterior segments of the abdomen. In enlarged photographs, 

 at least two segmental furrows can be distinguished. The area 

 occupied by the abdomen seems to be nidicated by a darker 

 area of colour, which is also slightly elevated above the level 

 of the tegmina. This dark area has a breadth of 14 mm. 



Affinities. — The salient features of the tegmina of this 

 insect are very clearly marked. The sub-costal area is tri- 

 angular, whilst the subsidiary twigs tend towards a pectinate 

 arrangement. The radius takes little part in the wing apex. 

 The median is an important vein, occupying most of the wing 

 apex, and giving off all its twigs on the outer side. The 

 cubitus is even more developed than the median, occupies the 

 greater |)art of the inner wing margin, and gives off twigs 

 on its outer and inner sides. Its extension to the wing tip is 

 a strong feature. This assemblage of characters is in agree- 

 ment with Scudder's genus, Necyviylacris,'^ and Handlirsch's 

 genus Eiiniorphoblatta? 



Scudder's definition of the genus seems sufficiently good to 

 warrant the retention of his genus. 



The specimen differs from yV. Lafittei, Pruvost, and N. 

 Godoni, Pruvost, and appears to be more nearly related to N. 

 heros, Scudder. It differs from the latter in the presence of 

 a reticulated venation, in a more sub-divided median vein, 

 and in the greater development of the outer branches of the 

 cubitus. We do not know of any other species to which it can 

 be referred, and therefore attach to it the name of Monsieur 

 F. ]\Icunier. who has done so much good work upon the French 

 fossil insects. 



Type. — Manchester ]\Iuseum, ]\Iark Stirrup Collection ; 

 Register No., L5, 5 5 5. 



Horizon. — Stephanian. 



Locality. — Commentry (Allier), Central France. 



Necyniylacris Lcrichci, sp.n. PI. III.; figs. I — 5. 



The remains of this insect have proved to be of a most 

 tantalising character. The greater part of the pronotum is 

 present in a smashed up condition, the fore and hind wings 

 are partially superposed upon one another, so that the venation 

 can only be unravelled with great difficulty, whilst the hind 

 legs and possibly a part of the abdomen lie beneath all the 

 rest. 



Fronotiini. — The pronotum is circular, with a small rounded 

 projecting lobe in the median line on the front margin. The 



2. Necymylacris, Scudder, Palaeozoic Cockroaches, Mcui. Boston 

 Soc. Sat. Hist., Vol. iii, part i, p. 52, 1S7Q. 



3. Eumorphoblatta, Handlirsch, Proc. U.S. National Museum, 

 Vol. 20, p. 273, 1Q06. 



