78 



CHILO PLEJADELLUS. (Plate V., figs. 10, male, and 11, 



female.) 



Chilo plejadellus Zinck., Germ. Mag., Vol. IV., p. 251 



(1821). 

 Jartheza sabulifera Walk., Lep. Het., Vol. XXVII., p. 185 



(1863). 



Crambus plejadellus ZelL, Chil. et Cram., p. 26 (1863). 

 Diphryx prolatella Grote, Bull. U. S. Geo. Sur., Vol. VI., 



p. 273 (1881), 

 Chilo oryzaeellus Riley, Rep. Dep. Ag., p. 135, Plate VII., 



fig. 1 (1882). 



Expanse of wings, 22-32 mm. Head, thorax and fore 

 wings pale ochreous ; labial palpi quite bushy, clothed with 



numerous black scales 

 and hairs intermixed. 

 Fore wings with numer- 

 ous ferruginous scales 

 scattered between the 

 veins, across the end and 

 below the cell ; a series 

 of golden metallic scales 

 forms a subternrinal line 



FIG. 3. Chilo plejadellus : a, larva, side view in 



split stem ; 6, larva, back view ; c, pupa ; TOUnded and Curved a Way 



side view enlarged. From Depart- ual TOW of SCVCn black 

 ment of Agriculture. __ . 



dots. Fringes golden 



metallic, with metallic scales scattered over the wing. Hind 

 wings rather paler. Female (fig. 3, d) much lighter in color 

 than the male, hind wings and abdomen pure white, palpi less 

 bushy, and with less brown scattered over the .fore wings. 



"Larva. Average length, 23 mm. Head dark brown, 

 and furnished with a few scattered brownish hairs (fig. 3, a 

 and b). Thoracic shield light brown, median line still paler, 

 front margin whitish ; a- blackish triangular spot, widening 

 towards the lateral margin, on each side of the dorsal line. 

 Color of the body pale yellowish white, slightly transparent, 

 marked with four rather indistinct, pale-purplish stripes, 

 of which those bordering the stigmata are scarcely half as 

 broad as the others. Tubercles large, oval, pale yellowish 



