89 



dark fuscous spots, four or five in number; the portion al)ove this and the 

 apical tliird semi-transparent, distinctly tinged with reddish-purple. Wings 

 transparent but tinged, especially the front and apical portions, with reddish- 

 purple ; the nerves and nervules of the front i)ortion dusky. Posterior 

 femora pale yellow ; a narrow dusky stripe along the upper carina (or rib) 

 of the disk; two pale dusky spots on the inside of the upper carina. The 

 posterior tibia has the lower two-thirds of the under surface dusky, the rest 

 pale-yellow ; spines white at the immediate base, rest black. Antennae pale 

 rufous. 



The pronotum expands but moderately on the posterior lo])c, the- lateral 

 caringe curving regularly inward (though moderately), the closest approxima- 

 tion being in advance of the middle ; posterior margin ol)tusely rounded ; no 

 entering angle on the posterior lateral margin, though it slightly (very 

 slightly) curves inward 1)etween the humerus and lower angle. 



The sub-anal plate of the male is slightly elongate, fleshy, entire, and 

 rounded at the tip. 



Dimensions. — 9 Length, 0.75 inch; elytra, O.GO inch; posterior femora, 

 0.46 inch; posterior tibitp, 0.38 inch ; pronotum, 0,13 inch. <? Length, 0.64 

 inch ; elytra, 0.52' inch ; posterior femora, 0.40 inch ; posterior tibia?, 0,36 

 inch. 



!S»t. seqwaiBs, Scudd., Bost. Jour. Nat. Hist., 1862, vol. VIL 459. 



Very similar in appearance to St. maculipennis, but a smaller species, 

 with elytra extending only to the tip of the abdomen. Vertex broad and 

 blunt, the sides slightly swollen at the anterior border of the eyes ; apex 

 l)lunt, and all the angles rounded ; the edge slightly but not sharpl}^ 

 upturned ; foveolse shallow, short, and nearly ecpuangular. Lateral carinas 

 of the pronotum curved inward a little in the middle, not so prominent as 

 the sharp median carinse ; hind border slightly angular, but neai'ly straight. 

 Elytra and wings just reaching the extremity of the abdomen. 



Color. — Much as in St. maculipennis. The lateral caringe of the prono- 

 tum are yellow, and the stripe extends forward to the eye ; the stripe behind 

 the eye is quite narrow, and the sides below it green, like the parts above, 

 and the triangular dash of black upon the top of the pronotum at tjie hinder 

 angles is much narrower than there, on account of the lesser divei-gence of 

 the lateral carinse. The median stripe (jf the elytra containing the square 

 12a 



