374 ACADEMY OF NATURAL SCIENCES 



Head small ; front with three elevated lines, lateral line spot- 

 ted, middle of the hypostoma white with a broad black band : 

 thorax very short, almost lineolar, angulafed : scutel large, tri- 

 carinate, with a large blackish spot occupying the greater por- 

 tion : hemelytra grayish ; nervures spotted with black, particu- 

 larly the costal, on which is a larger one near the tip ; interme- 

 diate tibiae biannulate with blackish. 



Length to the tip of hemelytra nearly one-fourth of an [339] 

 inch. 



Var. a. Spots of the hemelytra obsolete : body yellowish : 

 hypostoma bifasciate with black. 



Var. b. Hemelytra immaculate. 



In this species the tip of the hemelytra is a little dilated in- 

 wards so as to lap over when at rest, and the scutel is not longer 

 than the thorax. 



4. F. OPACA. — Blackish ; beneath with a white vitta ; head a 

 little advanced. 



Inhabits near Lake Erie and Indiana. 



Body, above, brown-black : head, before the eyes, equal in 

 length to the diameter of the eye ; hypostoma with the central 

 line and lateral edge elevated ; on the middle a whitish band : 

 vertex with an impressed longitudinal line ; tip rounded : thorax 

 with an elevated line : scutel with three elevated lines, the lat- 

 eral ones a little arquated : hemelytra opake, irrorate with minute 

 white points ; dilated towards the inner tip so as to lap over the 

 opposite one ; a quadrate whitish spot beyond the costal middle, 

 and one or two smaller ones nearer the tip : pleura with a lateral 

 whitish vitta : feet black : venter blackish. 



Length to tip of hemelytra over two-fifths of an inch. 



This is a fine species, and was obtained by Mr. Isaiah Lukens. 



The hemelytra are dilated inwards near the tip, as in nava, 

 but the scutel is more than as long again as the thorax, and the 

 head is differently formed before. I have recently found a speci- 

 men in Indiana. [2401 



5. F. PALLIDA. — Pale brownish ; beneath yellow; head a little 

 advanced. 



Inhabits Pennsylvania and Florida. 



Body, above, pale brownish-yellow : head, before the eye, 



[Vol. VI. 



