162 NOCTUIDJE. 



b*. Fore ^ ing increasing in width 

 to outer margin, usually 

 narrow and long ; bind 

 wing generally more or 



less hyaline at base 6. Stictopterince. 



ft". Fore wing without raised tufts 



or lines of scales, increasing 



in width to outer margin*, 



and not hyaline at base. 



a 4 . Palpi slender, with the 2nd 



joint not thickened ; the 



scaling quite smooth 3. Palindiincr. 



6*. Palpi with the 2nd joint 

 more or less thickened ; 

 the scaling usually hairy . . 8. Quadrifince. 

 I'. Palpi sickle-shaped, the 2nd joint 



being curved 9. Focillince. 



B. Moths of slender build, with the legs and 

 especially the tarsal joints long and 

 slender 10. Deltoidince. 



Subfamily TKIFIN^. 



Fore wing with vein 6 from the upper angle of cell or rarely 

 from above it ; vein 8 given off from 7 and anastomosing with 9, 

 which is given off from 10 to form the areole t, or rarely vein 7 

 also anastomoses with 9. Hind wing with veins 3 and 4 from 



Fig. 105. Larva of Agrotis c-nigrum. \. 

 (From Hmpsn. 111. Het. ix, pi. 176, fig. 4.) 



end of cell or rarely on a short stalk ; 5 from centre of discocellu- 

 lars, rarely slightly curved at origin, very slender and obsolescent, 

 the outer margin not being produced at its termination J ; veins 6 

 and 7 from angle of cell or rarely stalked. 



The following markings on the fore wing are very characteristic 

 of the Noctuidw and especially of the subfamily Trifinw : an orbi- 

 cular or rounded stigma in the cell, a reniform or kidney-shaped 

 stigma just beyond it, and a claviform or elongate streak below 

 the cell. 



Larvce with four pairs of abdominal prolegs, not semilooping. 



* Except Isoeura, Dinumma, and Cattyna. 

 t Except in Arboricornus. 



| In Acutipenna vein 5 is more strongly developed and from near the lower 

 angle of cell. 



