No. 34-] HEMIPTERA OF CONNECTICUT: ALEYRODIDAE. 337 



setose, not projecting, and bearing a pair of spines at the distal 

 extremity. 



Adult female, length measurements*; head and body about 

 1.5 mm.; fore wing, 1.7 mm.; hind tibia, .66 mm.; basal tarsal 

 joint, .15 mm.; distal tarsal joint, .107 mm.; antenna, .42 mm.; 

 third joint, .i6mm. ; fourth to seventh joints, inclusive, .2 mm. 

 Compound eye reniform with large ocellus close to its upper 

 margin. Paronychium, longer than claws, blade-like, and fringed 

 with hairs on lower edge. Color of body yellow with antennae 

 and legs paler ; wings white, immaculate. 



Male much like female though smaller. 



This species is not abundant in Connecticut, usually only one or 

 two larvae or pupae being found on a leaf. It occurs on red 

 maple, Acer rithrum, silver maple, A. saccharinum (formerly 

 dasycarpum) and occasionally on Norway maple, A. platanoides. 



New Haven, 20 Sept., 1904, 8 Sept., 1905; New Canaan, 15 Sept., 1905 

 (W. E. B.). 



Tetraleurodes Cockerell. 



(Aleyrodes in part.) 



Pupa case varying in size, broadly oval, usually black. Margin 

 with teeth, wax tubes well developed ; submarginal area differen- 

 tiated from dorsal disk and fluted ; dorsum without papillae though 

 often with minute pores ; reniform "eye spots," often apparent on 

 anterior portion ; tracheal folds not evident ; wax secretion in the 

 form of a long white fringe around margin. Vasiform orifice 

 small, subcordate or rounded, usually elevated on a tubercle-like 

 projection of the dorsum; operculum of similar shape, almost 

 filling the orifice ; lingula not evident. Adult has one flexure in 

 radial sector of fore wing and no trace of media; our species with 

 clouded wings. Antennae of seven segments, the third being 

 longest. 



Key to Species. 



Pupa case black, surrounded by a white fringe of wax. Adults 



with clouded wings. Body bright yellow mori 



Body white with black markings mori var. maculata 



T. mori (Quaintance). Aleyrodes mori. 



Can. Ent., xxxi, i, 1899. 



Pupa case about .70 x 55 mm., elliptical, shiny black or dark 

 brown, fringed with white wax rods, ragged at outer margin ; 

 margin crenulate, rim marked with minute dots. Dorsal disk 

 slightly raised, thoracic and abdominal segments distinct; a pair 

 of setae occur on both the mesothorax and metathorax ; a pair 

 near the vasiform orifice, a pair near the caudal margin, and a 



* These measurements were made by Quaintance and Baker, and published 

 in Technical Series, No. 27, page 90, Bureau of Entomology, U. S. Dept. 

 of Agriculture. 



