ALEURODICUS (mETALEURODICUS) MINIMUS. 77 



The color is a light greenish brown. 



Adult. — The adults are greenish yellow in color. The vertex is 

 shaded on either side with dusky. The compound eyes are brownish- 

 black and the ocelli clear and surrounded by a conspicuous Indian- 

 red area. Tlie thorax is marked with black, which is arranged in 

 more or less broken transverse bands, which sometimes appear as 

 mere spots. Abdomen generally unmarked. Vasiform orifice with 

 the operculum and lingula blackish. P'orewings (PI. XXVII, fig. 5) 

 shaded all over with dusky, giving the wing a smoky look excepting 

 a line representing the cubitus, which is clear, unshaded. Near their 

 tips the veins R^, R.s, and M are somewhat swollen and clouded, and 

 just at the radial fork below R^ there is a conspicuous dark spot. 



The radial forks in the wing are very long, the length of Rs being 

 half as long again as the distance between the radial fork and the 

 insertion of the media. The antennae are absent from the specimens 

 at hand. 



Male: Length 1.12 mm.; length of forewing 1.1 mm.; width 0.56 

 mm.; claspers (PI. XXVII, fig. 9) 0.14 mm.; hind tibiae 0.32 mm.; 

 greatest width of genital segment 0.16 mm. 



Female: Length 1.4 mm.; length of forewing 1.4 mm.; width 

 0.672 mm. Lingula of vasiform orifice very large, exserted, and 

 rounded (PI. XXVII, fig. 10). 



Aleurodicus (Metaleurodicus) minimus Quaintance. 



(PL XXVIII, figs. 1-10; PI. XXIX, fig. 3.) 



Alrut'odicufs minima Quaintance, Tech. Ser. 8. Div. Ent., U. S. Dept. Agr.. 

 p. 47 (1900). 



ORIGINAL DESCRIPTION. 



Pupa-case. — Size about 1.17 by 0.71 mm., subelliptical, many specimens are 

 somewhat narrowed cephalad. Case usually widest across region of second 

 abdominal segment. Color yellowish, varying to brownish. Empry case semi- 

 transparent, except for the irregular brown coloration on margin, and at 

 the dorsal pores. Margins slightly crenulated. with very shallow indentures 

 between the lateral wax tubes. There is no marginal rim. Just within the 

 margin, all around, is a closely set row of short disk-like tubercles or papillae, 

 from which is produced a fringe of almost straight, tapering, glassy waxen rods 

 from one-third to one-half as long as pupa-case is wide. On the more central 

 dorsal region a light mealy waxen exudation may occur. Pupa-case slightly 

 raised from surface of leaf by vertical fringe of wax, which usually remains 

 attached to leaf on removal of dried specimens. On the dorsum, nearer the 

 margin than center, is a row on each side of seven round and well-defined com- 

 pound pores. Considered transversely, these occur in pairs; a pair on cephalic 

 segment; a pair on niotathorax; three pairs along the abdominal segments, and 

 two pairs in the region latero-caudad of the vasiform orifice. The caudal pair 

 is somewhat the largest, with the cephalic pair next in size; the rest are sub- 



