•J06 



MESOZOIC INSECTS OP QUEENSLAND J V., 



giving off anterior branches only (as in hindwing of Megapsy- 

 chops); further distad, the direction of these veinlets changes 

 rapidly, until, at the most distally preserved part of the wing, 

 they make an angle of only about 30° with ttc. No costal series 

 of cross-veins between the costal veinlets. The most basal branch 

 of Rs ( = R 4 _|_ 5 ) still preserves its dichotomous branching, and 

 both R 4 and R 5 again branch dichotomously in the preserved 

 part. 1A also dichotomously branched. 



Genotype, Archepsychops triassica, n.sp. (Upper Triassic, 

 Ipswich, Q.). 



Akchepsychops triassica, n.sp. (Text-fig. 27). 

 Greatest length of fragment, 67 mm.; greatest breadth, 6 mm. 



1+2 



Text-fig. 27- 

 Archepsychops triassica, n.g. et sp., preserved portion of forewing. 

 Upper Trias of Ipswich, < v >. ; rf, primary radial fork; rj", secondary 

 radial fork; rest of lettering as usual; ( x 111',). 



(Measurements of the corresponding portions of the forewing of 

 Megapsychops illidgei are almost exactly the same size; so that 



