176 



AN INTRODUCTION TO ENTOMOLOGY. 



Fig. ns.—Scolops. 



Scolops. — In this genus the head is greatly prolonged (Fig. 145), 

 as with the exotic Candle-flies. Our more common species, how- 

 ever, measure only about 8 mm. (0.31 inch) in 

 length. 



Otioccms. — In this genus, the body is oblong; 

 the head is compressed, with a double edge both 

 above and below, and the antennae are furnished 

 with tape-like appendages. " Otiocerus coquedertii is 

 a g a y lemon-yellow or cream-colored species, with a broad stripe on 

 the side of the face and wavy red forked lines on the wing-covers ; 

 the head, as seen from the side, is of the form of a ploughshare, with 

 little brown eyes standing out like beads. The antennae have three 

 bent appendages resembling strips of tape. It measures about 

 8 mm. (0.3 inch) to the tip of wing-covers, lives upon the leaves of 

 grape-vines, oaks, and hickory, in July, August, and September." 

 (Uhler.) It is distributed over the entire Eastern United States. 



Ormenis. — In our common representatives 

 of this genus the wing-covers are broad, and 

 closely applied to each other in a vertical 

 position ; they are more or less truncate, and 

 give the insect a wedge-shape outline. O. sep- 

 tcntriondlis (Fig. 146) is a beautiful pale-green 

 species powdered with white, which feeds on 

 wild grape-vines, drawing nourishment from 



the tender shoots and mid-ribs of the leaves, during its young 

 stages. 



Fig. 146. — Ormenis septen- 

 trionalis. 



Family IX. — CERCOPID^E* 



{Spittle-insects or Frog-hoppa-s.) 



This and the following family agree with the Membracidae in h?v- 

 ing the antennae inserted in front of and between the eyes. But the 

 Cercopidae differs from the Membracidae in lacking the backward pro- 

 longation of the prothorax, and from the Jassidae in the character of 

 the spines upon the hind tibiae. Here we find the tibiae armed with 

 one or two stout teeth, and the tip crowned with short, stout spines. 

 The Cercopidae "mark an important advance in the direction of the 

 Heteroptera by the large size of the prothorax and increased freedom 

 of the fore legs. This extensive piece is no longer a mere cap or 



* Cercopidae, Cercopis : Cercops (KepKooip), one of a fabled race of men. 



