FAM. MEMBRACID.E 89 



52. Genus NESSORHINUS Amyot and Serville 



Nessorhinus Amyot and Serville, Hemip. 542 (1843). 



Characters : Medium sized insects of quite remarkable appearance due to the flattened 

 anterior horn which projects directly forward over the head and the greatly produced humeral angles 

 which project outward as large spines. Head very small, poorly developed, three times as wide as 

 high; basealmost flat; eyes large and prominent; ocelli large, conspicuous, located in the upper, outer 

 angles of the head, very close to the base and to the eyes, as in the genus Orekthophora ; inferior margin 

 of the genas sinuate ; clypeus extending for more than half its length below the inferior margins of 

 the genae. Pronotum low and almost flat except for a median dorsal crest which is always present 

 but is variable in height; anterior pronotal process long, heavy, strong, tricarinate, somewhat flattened 

 dorso-ventrally and extending almost directly forward ; metopidium sloping; median carina percurrent; 

 humeral angles developed into long, spine-Hke horns which extend outward and upward; posterior 

 process long, slender, tectiform, tricarinate, acuminate, extending just about to the tips of the tegmina; 

 scutellum entirely concealed. Tegmina entirely free, long, narrow, vitreous, semiopaque; veins heavy 

 and prominent, those of the apical area slightly curved ; five apical cells with the median one truncate 

 at base; number of discoidal cells variable but usually three; apical hmbus very narrovi'. Legs simple; 

 all tarsi about equal in length. 



Type vulpes Amyot and Serville. 



Geographical distribution : This genus is known only from the West Indies and is repre- 

 sented by the following species : 



1. gibberulus Stal, Bid. Memb. Kan. 294. i (1869). Porto Rico, 



2. gracilis Metcalf and Bruner, Memb. Cuba 208 (ig25). Cuba. 



3. graciloides Dozier, Araer. Mus. Novit. 3 (igSi). Porto Rico. 



4. vulpes Amyotand Serville, Hemip. 242 (1843). — Pl. 4, fig, 43. Haiti, San Domingo, St. Vin- 



cents Island, 



53. GENUS SPINODARNOIDES FUNKHOUSER 



Spinodarnoides Funkhouser, Journ. N. Y. Ent. Soc. XXXVIII : 4. 412 (igSo). 



Characters : A slender bodied insect characterized by the long, spine-like humeral angles, a 

 spinose median dorsal process but having no anterior horn. The head is rather curious since it projects 

 in a horizontal ridge with the base and inferior surfaces sloping backward from this ridge. The head 

 is nearly three times as broad as high; base sinuate; eyes large; ocelli large, prominent, three times as 

 far from each other as from the eyes and situated just above the protruding ridge of the head; clypeus 

 broad, projecting for two-thirds its length below the sinuate margins of the genas. Pronotum rounded 

 butnothigh; metopidium sloping; median carina strongly percurrent ; humeral angles produced out- 

 ward into long, sharp spines; no anterior horn; median dorsal spine short and sharp ; posterior process 

 long, slender, sharp, tricarinate, its tip not quite reaching the tips of the tegmina; scutellum entirely 

 concealed. Tegmina entirely free, long, narrow, hyaline; five apical and three discoidal cells; apical 

 limbus narrow. 



Type typus Funkhouser. 



