50 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XX. 



ANALYTICAL KEY TO THE SPECIES OF CAMPYLACANTHA. 



A 1 . Distal half of anal cerci of male less than half as broad as the extreme base. 

 b l . Hind femora relatively slender, the greatest breadth in the male being no 

 greater than the length of the prozona. 

 c 1 . General colors griseous, with a slight greenish tinge; hind tibiae livid, finely 



flecked with griseous 1. acutipennis (p. 50). 



c 2 . General colors olivaceous; hind tibiae yellowish green 2. olivacea (p. 51). 



& 2 . Hind femora relatively stout, the greatest breadth in the male being a little 

 greater than the length of the prozona; hind tibiae bluish green, lutescent apic- 



ally 3. similis (p. 52). 



A 2 . Distal half of anal cerci of male more than half as broad as the extreme base. 



4. rivax (p. 52). 



i. CAMPYLACANTHA ACUTIPENNIS. 



(Plate IV, fig. 3.) 



Pezotettix acutipennis SCUDDER!, Proc. Bost. Soc. Nat. Hist., XVII (1875), p. 472; 



Ent. Notes, IV (1875), p. 71; Cent. Orth. (1879), p. 16. BRUNER, Rep. U. S. 



Ent. Cornm., Ill (1883), p. 58; Bull. Washb. Coll., I (1885), p. 136. 

 Hypochlora acutipennis BRUNNEK, Rev. Syst. Orth. (1893), p. 145. 



Brownish fuscous with a dull olivaceous tinge, giving a griseous 

 aspect ; excepting the abdomen pilose throughout. Head mottled irreg- 

 ularly with darker and lighter shades, a dark triangular spot in the 

 middle of the posterior part of the summit, and generally an obscure 

 dark band passing backward from the hinder edge of the eyes and 

 crossing a portion of the sides of the pronotum ; antennae pale yellow- 

 ish, infuscated at extreme tip, Prouoturn delicately rugulose, the 

 median cariua distinct, the dorsum more distinctly tectate in the female 

 than in the male. Tegrnina less than half as long as the body, but 

 longer than the pronotum, tapering to a blunt point, dark brown, the 

 veins and cross veins generally paler and olivaceous. Legs dusky, the 

 middle femora blackish externally; hind femora more or less indis- 

 tinctly trifasciate with blackish; hind tibiae livid, mottled minutely 

 and profusely with brown, the apical half of the spines black. Supra- 

 anal plate of male triangular with nearly straight sides, acutangulate 

 at tip, the apex blunt, the basal half with a deep sulcus between 

 slightly converging elevated ridges, the apical half more or less 

 depressed, but showing faint signs of the continuation of the median 

 sulcus; furcula consisting of a pair of slight, rounded, adjacent lobes, 

 projecting very slightly; cerci straight, slender, and short, scarcely 

 reaching the tip of the supraanal plate, nearly straight on the inferior 

 margin, above narrowing rapidly in basal, gradually in apical, half, 

 again more rapidly at extreme tip, the apex bluntly acuminate; infra- 

 cereal plates broad at base, regularly tapering, with nearly straight 

 outer margin, failing to attain the tip of the supraanal plate, visible 

 outside the recumbent cerci. 



Length of body, male, 20.5 mm., female, 24.5 mm.; antennae, male, 

 female, 10.5 mm.; tegmina, male, female, 8 mm.; hind femora, male, 13 

 mm., female, 15 mm. 



