APPENDIX. 045" 



basal joint with a whitish line hefore ; thorax with the an- 

 terior margin somewhat contracted in the middle, yellow; 

 scutel yellow ; ivings fuliginous; thighs black, yellowish 

 at the knee joint ; tibise whitish, a black line near the tip ; 

 tarsi pale yell(|j^ish, dusky towards the tip ; terguvi, first 

 segment with a subbidentate yellow band on the posterior 

 margin ; second segment with a yellow band on the pos- 

 terior submargin somewhat sinuated before, and an oval, 

 oblique yellow spot on the middle of each side ; third and 

 fourth segments with each an abbreviated, whitish, submar- 

 ginal line behind ; venter with a spot at tip of the first 

 segment, and a submarginal band on the second behind. 



Length from nine-twentieths to more than three-fifths 

 of an inch. 



Var. et. Spot on the second segment of the tergum elip- 

 tical. 



Var, /S. A pale yellowish spot on each side of the scutel, 

 and nearly in a line with it. ' 



This species is very closely allied to ihe coarctata, Fabr. 

 of Europe, but the whole of the hypostoma is yellow, the 

 line between the antennae being only a process from it ; 

 there is no yellow point beneath the wings ; none on the 

 first segment of the tergum ; and the bands on the third 

 and fourth segments are always much abbreviated, never 

 extending to the sides or upon the venter. 



Like the coarctata this species constructs for each of its 

 eggs a hollow globe of eailh, with a short ascending neck, 

 the rim of which is sometimes widely outspread horizon- 

 tally ; it is often built around a twig of a bush for support, 

 as represented by Degeer, (Hist, abregee des insectes, vol, 

 2, pi. 16, fig. e.) sometimes the nest occurs simply attach- 

 ed to the superior page of a leaf. The egg deposited in this 

 globe in June, is inclosed with a sufficient supply of food, 



