152 THE CANADIAN ENTOMOLOGIST. 



Pupa case. — Length about 0.83 mm., width about 0.5 mm. Sub- 

 elliptical in shape, many specimens with more or less evident indentures 

 on cephalo-lateral margin of case. Black, with whitish mealy waxen 

 secretion on dorsum, not abundant enough to entirely obscure colour of 

 case ; case with conspicuous lateral waxen fringe of a cottony nature, 

 averaging about one-half in length the widih of the case. Along the dorsi- 

 meso is a distinct elevation extending cephalad from and including the 

 vasiform orifice to near the margin of the case, reduced to a mere ridge 

 on thoracic region, but broader and evenly rounded on the abdominal 

 region, and merging caudad into a more or less octagonal rim around the 

 vasiform orifice. (Fig. 6.) Abdominal segments distinct, extending 

 outward, but slightly beyond the rounded keel. Dorsum with three pairs 

 of stout bristles ; one on the mesothorax, one just cephalad of orifice and 

 one at posterior end of keel. Two pairs of minute marginal bristles 

 present ; one cephalad, and one caudad. Marginal rim distinct, with 

 colourless wax tubes distinct ; wax tubes elongate, more or less rounded, 

 some acute, incisions obtuse or acute. Between margin of case and line 

 marking outer limits of pupa within is a series of dark elongate strictions 

 parallel to case margin. (Fig. 7). Vasiform orifice (Fig. 0), sub-semi- 

 circular, distinctly broader than long ; operculum sub-semicircular, broader 

 than long, reaching about ; 3 distance from base to tip of orifice. Lingula 

 fully developed, reaching well beyond the caudal margin of orifice, con- 

 sisting of a basal shaft and expanded tip ; shaft acutely enlarged midway ; 

 tip nearly circular, with distinct constriction distally and armed distally 

 with a pair of comparatively long weak bristles and numerous short hairs. 

 Lingula seen with great difiiculty, except in case pupal skins protruding 

 from pupa case. 



Adult. — Female dried specimen, about 0.8 mm. long, fore wing 

 about 0.96 mm. long, posterior femur 0.2 mm. long, posterior tibia 0.3 mm. 

 long, posterior tarsi o.i mm. long. Adults yellowish, without darker 

 markings, after emergence becoming thoroughly coated with whitish 

 secretions, eyes reddish, constricted at middle, but not divided ; wings 

 with typical Aleyrodes venation, whitish, without spots or clouds, slightly 

 violescent. Males do not differ from females except in usual characteristics. 



Habitat. — Type material collected at Santiago de las Vegas, Cuba. 



Food Plant. — Indigenous solanaceous vine, Solanum seaphorthianum 

 Andr. (Dr. Cauizares authority.) 



Type. — Type material in collection of U. S. D. A., Bureau of Ento- 

 mology, and in that of the writer. 



