1888] MARYLAND ACADEMY OP SCIENCES. 33 



NEW GENERA AND SPECIES OF AMERICAN HOMOPTERA. 



By p. R. UHLER. 



[Read October 14, 1889.] 



Fam. JASSIDAE. 



ScAPHOiDEUS. New genus. 



Form of Phlepsius lacerdae Sigt. Head triangular, flat above, 

 vertex almost as long as the width between the eyes, subacumi- 

 nate at tip, the base deeply sinuated ; front longer than wide, 

 deltoid, with the sides near the tip moderately curved, tylus 

 liguliform ; cheeks broad, curved, expanded to behind the 

 middle of the eye, acutely tapering at tip and hardly enclosing 

 the entire lora, the lora diagonal, acute at each end. Antennae 

 long and slender. Pronotum sublunate, more curved anteriorly 

 than sinuated posteriorly. Wing-covers moderately narrow, 

 longer than the abdomen, curved, valvate, the costal areole 

 long, narrow, destitute of cross-veins, followed by a gradually 

 widening cell, beyond this are four apical cells of large size and 

 mostly broad triangular figure ; wings with the two apical 

 middle areoles long and narrow, narrowing at base towards the 

 cross-vein. Abdomen moderately long and narrow. 



The name of this genus has reference to the somewhat shovel- 

 shaped figure of the head. It comes very near in form and 

 venation to some European species of the genus Platymetopius, 

 as restricted by Fieber, which have the short head. Our genus, 

 however, lacks the two minute cells at the apex of the costal 

 areole, and has longer falcate genae which hardly reach around 

 the tip of the lora. The eyes are also of the triangular diagonal 

 type, extending well back on the curved sides of the pronotum. 



1. S. immistus. 



Jassus immistus Say, Jour. Acad. Philad. VI, p. 306. This 

 is a very common and variable species, widely distributed 

 throughout the eastern United States, from Maine to Florida, 

 and from Ontario, Canada, all the way to central Texas. In 

 Maryland it occurs on oak bushes during August and Sep- 

 tember. 



