HETEROPTEROUS HEMIPTERA. 333 



margin, and the arrangement of colors on the hemelytra is dif- 

 ferent. 



3. P. vincta. — Thorax constrained near the base, and with a 

 transverse line before ; hemelytra whitish with a fuscous spot. 



Inhabits Florida. 



Body blackish, punctured; antennaa, basal joint yellowish, 

 tipped with black; remaining joints ; thorax much con- 

 stricted behind the middle, subcylindric, anterior margin with 

 a transverse impressed line, anterior to which the margin is 

 piceous ; posterior margin of the stricture with a cinereous re- 

 flection ; basal edge piceous ; scutel with a carinate line ; heme- 

 lytra yellowish-white and punctured on the corium, the posterior 

 margin of which is fuscous ; membrane milk-white : abdomen on 

 the margin dull rufous ; feet whitish ; anterior thighs honey- 

 yellow, dilated. 



Length one-tenth of an inch. 



Differs from contracta nob., in size, arrangement of colors, and 

 by the very distinct, impressed line before. [ 778 ] 



4. P. fera. — Blackish; thorax transversely indented behind 

 the middle; feet piceous; anterior thighs dilated. 



Inhabits United States. 



Body blackish; antennae piceous terminal joint darker: thorax 

 a little transversely indented behind the middle, but not affecting 

 the lateral edge ; lateral narrow margin depressed, yellowish and 

 almost translucent behind the middle : hemelytra piceous : mem- 

 brane with a pale, translucent spot at tip of the corium : beneath 

 black ; rostrum and feet piceous ; anterior thighs much dilated 

 and spinous beneath ; anterior tibiae arquated, dilated at tip on 

 the inner side. 



Length under three-tenths of an inch. 



Male. — Hyaline spot of the membrane very obvious. Length 

 nearly one-fifth of an inch. 



Var. a. Thorax behind the stricture piceous; feet entirely 

 honey-yellow. 



5. P. una. — Punctured; antennae hairy; anterior thighs di- 

 lated ; thorax a little indented transversely behind the middle ; 

 lateral edge arquated. 



Inhabits Indiana. 



