June-0ct.,i92i Bulletin of the Brooklyn Entomological Society 91 



Connexivum rather broad, often strongly reflexed. Legs 

 rather short and stout, the posterior femora barely reaching 

 genital segment. 



Male (fig. la). — General form oblong oval (when con- 

 nexivum is not much reflexed) ; lateral margins of connexi- 

 vum straight in anterior half ; seventh abdominal segment 

 almost rectangular, distinctly emarginate posteriorly; second 

 genital small, hemispherical, half as long as first (as seen 

 from above). Length 1-1.3 mm. 



Female (fig. ih). — General form oval, slightly broader 

 than male; connexivum rarely reflexed, its lateral margin 

 evenly curved ; seventh abdominal segment trapezoidal, its 

 anterior margin longer than the posterior ( 10-6) ; dorsal 

 genital segment transverse, rectangular, shorter than the pre- 

 ceding. Color pattern usually more brightly developed than 

 in the male. Length 1.3-1.6 mm. 



In antennal structure this species is somewhat similar to buenoi 

 Drake, but otherwise it is not closely related to any of the de- 

 scribed species. Aside from size and coloration, it is peculiar in 

 its thoracic structure, lack of striking sexual dimorphism (cf . figs. 

 I and 2), and genital characteristics. The winged specimens 

 found on Long Island agree perfectly with Drake's description. 

 At Northampton the nymphs of the apterous form were numer- 

 ous, apparently in the last instar. 



Nymph (fig. ic). — Velvety brown, brightly marked with yel- 

 low. Head with two broad, longitudinal, dull yellow stripes; 

 median line of thorax and abdomen yellow, broadest on first ab- 

 dominal segment; mesothorax, lateral portions of metathorax, 

 lateral margins of whole thorax, and connexivum anteriorly, yel- 

 low ; connexivum brown posteriorly, with yellow spots inwardly ; 

 sixth and seventh abdominal segments pale. 



Antennae stouter than in adult; the first, second, and fourth 

 segments equally thick; the third more slender and nearly cylin- 

 drical; proportions — 6: 3: 5: 10. Pronotum very broad (27-6), 

 nearly straight posteriorly across middle, the disc with a faint 

 postmedian row of punctures. Mesonotum very short, its poste- 

 rior margin strongly sinuate. Metanotum somewhat longer than 

 preceding segment, fully exposed across middle, its posterior mar- 

 gin nearly straight, curved forward laterally. First abdominal 



