Specimeu No. 75 : 

 nearly all the anal veins 



Specimen No. 78(/-/) : port 

 former. 



BY K. J. TILLYARD. 449 



fragment showing- basal portions of Cui, Cua and 

 f Cm and ('u:>, showing branches of the 



;-fig. Ti.~ Mesorthopteron locusioides Till. Eestoration of forewing, with arohedictyon 

 omitted {see Plate li., fig. 26.) (x 4). 



Specimen No. 12.3: anal veins, basal part ot Cu2 and portion of branches 

 of Cm. 



Specimeu No. 224: two fragments on one small piece of rock; one shows a 

 piece of Sc with costal area, the other portions of the branches of Cui. 



Specimen No. 234: ends of Sc and R, with branches around apex. 



Specimen No. 241b : Sc and the costal area practically complete from base 

 to near apex, also distal portion of R. 



Type, Specimens No. 5a, 5b, in Coll. Queensland Geol. Survey, Brisbane. 

 Heautotypes used in restoring the wing are the specimens mentioned above. 



This insect is clearly an archaic type persisting from the Upper Carboni- 

 ferous Protorthoptera, and appears to have its nearest relatives in the P'ro- 

 totettigidae of the Middle Upper Carboniferous of Saarbriieken. 



Specimens No. 100 and 162a. are fragments of Protorthopterous wings not 

 belonging to the genus Blesorthopteroii, and distingiiished from it by the fainter 

 ;md more regular arehedictyon and the very strong veins. They probably belong 

 to the genus NotohlattiteK Till., but there is not enough of the wing preserved to 

 allow of a definite placing and naming of the specimens. 



Order ORTHOPTERA. 



Family TRIASSOMANTIDAE, n.fam. 



Insects of rather small size, in which the forewing is of the general plan 

 shown in recent Mantidae, but with the venation of a more archaic type. Sc 

 short, ending up little beyond half-way along the costa, and thus leaving a long 

 pterostigmatic area between itself and R]. Rs arising nearer to base than in any 

 known Mantoid types, and dividing dichotomically into two pai-allel branches. 

 M a single vein to beyond middle of wing, dividing into two main branches 

 beyond the level of the end of Sc. (Clavus and most of Cu missing). 



This family appears to come fairly close to the Liassic Geinitziidae of 

 Europe, but is more archaic in possessing a much longer Rs, which is dicho- 



