1888] 



MARYLAND ACADEMY OF SCIENCES. 37 



Fam. ISSIDAE. 

 Dyctidea. New genus. 



Oblong, subelliptical, wing-covers carried almost horizontal, 

 partly opaque. Head subquadrangular, the vertex transverse, 

 arcuated, sunken, very short, separated from the front by a 

 high carina ; front subquadrangular, emarginated below, elevated 

 above the line of the eyes, the medial carina pubescent, and 

 higher than those of the lateral margins, the superior carina 

 arcuated ; epistoma prominently convex. Pronotum transverse, 

 lunate, the anterior margin cariuated and curved far forward, 

 more than half way to the anterior line of the eyes. Eyes 

 lateral, prominent, hemispherical. Antennae with the basal 

 joint thick, cylindrical, about half as long as the eye, the second 

 joint very short and thin, carrying a long slender bristle. Scu- 

 tellum triangular, wider than long, with three incomplete thick 

 carinae. Wing-covers oblong, net-veined over most of the 

 surface, with the costal margin nearly straight, and continuous 

 with a flat cross-veined border which is carried all the way 

 around the membrane, and from thence to the base of the clavus ; 

 the costal area long, narrow, and crossed by remotely placed 

 veinlets, veins of the membrane coarse, oblique, with reticulate 

 branches. Legs stout, the posterior pair long, with strongly 

 keeled posterior tibiae carrying three or four spines on the 

 outer edge and a chaplet of smaller ones at tip, posterior tarsi 

 broad, depressed, the two inner joints armed with a spine each 

 side at tip. Abdomen compressed above, rounded beneath. 



1. D. angustata. New sp. 



Oblong, parallel-sided above, dull blackish piceous, greenish 

 on the sternal segments and upper part of front. Face smooth, 

 margined with testaceous, the middle carina pale at both extrem- 

 ities, and the vertex with a pale impression on the middle. 

 Eyes dark brown slenderly edged with testaceous. Epistoma 

 and rostrum brown-piceous. Pronotum somewhat uneven, 

 depressed, bordered with and having the middle line testaceous. 

 Scutellum more or less bordered with testaceous, and pale at 

 tip. Sternum and venter greenish, with some dark vestiges on 

 the middle of the segments. Legs pale piceous, paler on the 



