182 MESOZOIC IXSECTS OF QUEENSLAND, i., 



its complete form. This I have done in Text-fig. 2. The only 

 doubtful point is as to the form of the anal area, which I have 

 restored on the typical Trichopterous plan of a long curved 

 arculus {'trc), with veins 2A and 3A falling obliquely upon it 

 from above. 



Genotype, Mesopsyche iriareolafa, n.sp. 



Mksopsyche triareolata, n.sp. 

 (Text-fig.2, and Plate viii., fig.l). 



Forewing elongated, rather narrow, the anterior- border 

 scarcely curved at all right from base to tip. Distal half of 

 wing tapering to a bluntly pointed tip. Af.l at apex of wing, 

 Af.2 well below it. 



Greatest length of fragment, 13 mm.; greatest breadth, 5*8 mm. 

 Total length of restored wing, about 16-5 mm. Probable ex- 

 panse of wings in the original insect, 33 mm. 



Ty p e, ►Specimen No.llO (Coll. Queensland Geol. Survey). 



A discussion of the relationship of the genus Mesopsyche with 

 recent forms will be found on p. 



Genus Tkiassopsyche, n.g. (Text-fig. 3, and Plate vii., fig.2). 



To the characters of the family Mesopsychidce, we add the 

 following : — Numerous costal cross-veins present (three preserved 

 distally in a short space). Sc and Pv not close together, sub- 

 parallel. Towards its distal end, Sc throws off an oblique cross- 

 vein to C, and takes a short sharp bend downwards to the point 

 at which it is connected to Rj by a cross-vein; it then continues 

 in a gentle curve onward, finalh^ uniting with C at a point lying 

 nearly half-way along the total length of the pterostigmatic 

 region (as measured from the proximal cross-vein to apex of K,). 

 Consequently, pterostigmatic region very long, of irregular shape, 

 narrowed proximally and broadened out in middle. lij con- 

 nected with K2^y 3- cross-vein descending from middle of pt on to 

 dc. Pvj also forks distally, the lower branch running slantingly 

 into Ro well before the margin of the wing. Discoidal cell (ac) 

 elongated, hexagonal, distinctly broader than in Mr^sojibydie, but 

 of very similar general shape, with Af.l and Af.2 both sessile 



