136 MORPHOLOGY, ETC, OF THE MICROPTERYGIDiE, i. 



Fig, 2. — Right forewing of same, dissected off; distal two-thirds of wing 



only; ( x GO). 

 Fig.3. — A small portion of the basal part of the same wing as in Fig. 2 



( x 155), to show the cubital fork la little above the actual centre of 



the photograph), 

 (Two photographs of the fusion of Cu 2 with 1A in the hindwing were 

 also taken at same enlargement as that of Fig, 3, but the tracheae are 

 unfortunately slightly out of focus, and cannot be reproduced sufficiently 

 well for publication). 



LETTERING OF TEXT-FIGURES. 



A, anal veins or tracheal; 1A, 2A, 3A, first, second, and third analis 

 respectively; af, anal furrow; Cu. cubitus; Cu,, first cubitus, dividing 

 distally into Cuu and Cu b; Cu 2 , second cubitus; cu-a, cubito-anal cross- 

 vein; cuf, cubital fork; ft; frenulum; hm, humeral cross-vein; in, inter- 

 anal cross-vein; j<j, jugum; jl, jugal lobe; k, point of fusion of Cu 2 with 

 1A; M, media; M,-M 4 , its branches; m-cu, medio-cubital cross-vein; mf, 

 median fork; pa, posterior arculus; R, radius; R^ its main stem dividing 

 into R] a and Rib distally in Mnemonica and in forewing of Eriocrania; Rs, 

 radial sector; R^-R^, its branches: r-m, radio-median cross-vein; sa, sub- 

 anal cross-vein; Sc, subeosta; Sc 1( Sc 3 , its two branches in Sabatinca and 

 Micropteryx; sc-r, subcosto-radial cross-vein. 



