NO. 2156. SUBFAMILY ALEYRODINAE—QVAINTANCE & BAKER. 383 



15. Shape nearly elliptical, not broader at one end than at the other; no distinct 



eye spots present, margin irregular, a submarginal row of small pores pres- 

 ent myricae. 



Shape oval, the greatest width across the abdomen, the reverse of ovatus; dorsum 

 with a submarginal row of small pores 16 



16. Eye spots of pupa case absent; vasiform orifice elongate, the operculum filling 



less than cephalic half; submarginal row of pores about 0.016 mm. from 



margin coronatus. 



Eye spots of pupa case present; vasiform orifice of medimn length, with the 

 operculum almost filling it 17 



17. Eye spots reniform, moderately large; area between submarginal rows of pores 



and margin of case not reticulate, this row of pores about 0.03 mm. from the 



margin oculireniformis. 



Eye spots circular; area between the submarginal row of pores and margin of 

 case reticulate 18 



18. Eye spots extremely minute and situated on the same line with the submarginal 



row of pores; the pores alternating with one another to form a zigzag row 



around the case; row about 0.048 mm. from margin oculiminutus. 



Eye spots moderate in size, not situated in the same line with the submarginal 

 row of pores, but more mesad; pores of submarginal row not zigzag, but forming 

 an even row about 0.064 mm. from the margin vinsonioides. 



ALEUROPLATUS (ALEUROPLATUS) BERBERICOLUS, new species. 



Plate 50, fig. 1; plate 49, figa. 1-4. 



On January 27, 1908, J. W. Cockle collected pupa cases of this 

 species at Kaslo, British Columbia, on Berheris aquifolium. Later 

 collections by Mr. Cockle from the same plant proved to represent 

 other species, and adults supposed to be those of herhericolus, and 

 taken at another time, are those of a species of Aleyrodes. Speci- 

 mens of herhericolus are also in the collection from Mexico City, 

 collector and date unknown, and from Toluca, Mexico, on Hex, 

 collected June 24, 1897, by A. Koebele. 



Pujm case (pi. 50, fig. 1). — Size 0.88 by 0.656 mm. Shape elhp- 

 tical, constricted across the thoracic folds. Dorsum with the 

 abdominal segments quite distinct, thorax with a more or less 

 defined arrow-shaped structure resembling that found in the genus 

 Aleurotraclielus. Suture separating the thorax and abdomen curved 

 ceplialad beyond the third thoracic segment. Lateral margins of the 

 abdominal segments on the median dorsal area marked witli many 

 minute, dark, pore-hke spots. These sometimes extend in a row 

 across the edges of the segments. Margin (pi. 49, fig. 1) composed 

 of evenly romided, moderately shallow teeth from which there extend 

 mesad suture-hke markings. Thoracic tracheal comb (pi. 49, fig. 2) 

 composed of three or four ratlier prominent teeth with serrate mar- 

 gins; caudal comb similar. Submarginal and subdorsal areas with 

 irregularly scattered minute pore-like structures. Vasiform orifice 

 (pi. 49, fig. 3) subcircular in outline with the margins thickened; 

 operculum filling about half the orifice, subtriangular in shape, though 



