AmerieAna 



VOL V. 



BROOKLYN, JUNUfiRY, 1889. 



NO. 1, 



A GENERIC SYNOPSIS OF THE FULGORIDiE. 



By Wm. H. Ashmead. 



[Continued from page 141, Vol. IV.] 



Family II. FULGORIDiE. 



Head of various forms, often with a ceplialic prolongation and sometimes lumin- 

 ous. The irons nearly always keeled. Ocelli 2, rarely 3 or wanting, placed beneath 

 the eyes or sunken in the cheeks close to the eye, the third ocellus, when present, 

 placed in the middle of the frons. Antennae always beneath the eye, usually large, 

 distinct, the joints of which are frequently long and dilated, sometimes with an ap- 

 pendage. Thorax weak, usually keeled ; scutellum small. Wings usually long and 

 strongly veined, often short but rarely entirely wanting. Tegulse most frequently 

 present. Anterior coxae generally elongated ; posterior coxre transverse, contiguous, 

 extending from the sides of the body. Tibiae prismatic or foliaceous. Tarsi 3-jointed, 

 generally spined. 



This is one of the most extensive of the homopterous families, well 

 represented in North America, and comprises some of the most curious 

 and interesting forms to be found among insects. 



The family may be divided into ten subfamilies, recognizable by the 

 aid of the following table : 



TABLE OF SUBFAMILIES. 



Wings when at rest not lying perpendicular in repose 2. 



Wings when at rest lying perpendicular in repose. 



External border of elytra without transverse, parallel nervures 



Subfamily I. ACANONIINiE. 

 External border of elytra with transverse, parallel nervures. 



Vertex not -leparated from the frons by a transverse keel, or greatly prolonged 

 into a point beyond the eyes ; clavus at apex usually obtuse and usually 



confounded with the corium Subfamily II. FLATIN^E. 



Vertex very short, front part narrow or generally rounded before the eyes, 

 separated from the frons by a transverse keel ; clavus at a|)ex acute, 

 distinct Subfamily III. RICANIIN^E. 



