230 W. D. FUNKHOUSER 



Comparatively common on locust. vSeldom taken on any other host. 

 Recognized by its small size, reddish carina, and long, recurved horns. 

 The life history of this species is not known. 



Technical description. — Small and distinctly reddish; dorsal crest low, median lateral 

 line red; metopidium convex; horns sharp and much recurved; posterior process nearly 

 straight, usualh^ tipped with red; head triangular; tegmina and wings hyaline. 



Head sub triangular, weakly sculptured, faintly longitudinally furrowed, very finely and 

 lightly punctate, not pubescent; eyes prominent, dark brown with lighter edges, extending 

 beyond adjoining lateral margins of pronotum; ocelli glassy, nearer to each other than to 

 the eyes; clypeus much longer than wide, extending for more than half its length beyond 

 lateral margin of face, tip hirsute. 



Pronotum deeply and coarsely punctate, not pubescent, median carina prominent; dorsal 

 crest low, rising but little higher than tips of suprahumeral horns; horns slender, sharp, 

 much recurved, extending upward and curving backward; metopidium convex, regular; 

 lateral semicircular impression deep, concolorous; posterior process nearly straight, not reach- 

 ing the extremity of the abdomen and reaching barely one-third the distance to the tips 

 of the tegmina. 



Tegmina hyaline. Undersurface of body and legs yellowish. 



Length 8 mm.; width 4 mm. 



8. Ceresa Palmcri Van Duzee (Plate xxv, 3, 5, 6) 



1908 Ceresa Palmeri Van Duzee, Can. Ent. 40:114. 



1908 Van Duzee, Stud. N. A. Memb., p. 38, pi. 1, fig. 33. 



1910 Matausch, Journ. N. Y. Ent. Soc. 18: 166. 



1912 Matausch, Bui. Amer. Mus. Nat. Hist. 31 : 332, pi. 28, fig. 4. 



1915 Metcalf, Horn. No. Car., p. 6. 



1916 Van Duzee, Check List Hem., p. 58, no. 1578. 



Rather rare. Resembles C. constans in size and coloration but differs 

 from that species in the shape of the pronotal horns. Close to C. boreaUs 

 in general appearance but is smooth and not hairy. Has been taken only 

 on young hickory. The newly emerged adults are very strongly marked 

 with reddish. 



A growth of small hickories along a little-used wagon road thru Coy's 

 Cflen produces this species each year, and both the eggs and the first 

 nymphal stages have been found on these saplings. Attempts to rear the 

 species in the field, however, have failed as the insects died after the 

 second instar. Ap'parently the insect requires a second host as a feeding 

 plant, but this host is not known. The first two instars in the cases in 

 which records were obtained averaged five days for the first and six for 

 the second. 



Technical description. — Near the preceding species, but differing particularly in shape of 

 suprahumeral horns, which are short, terete, and but little recurved; small, reddish species, 

 with pronotum rather high, not pubescent. 



