272 ORTHOPTERA. 



DELLIA, Stal. 



Dellia, Stal, Bihang till K. Svensk. Vet.-Akad. Handl. v. no. 4, pp. 37, 83 (1878) ; Syst. Acrid, i. 

 pp. 37, 83 (1878) ; Brunner, Revis. Syst. Orthopt. p. 138 (1893) ; Giglio-Tos, Boll. Mus. 

 Zool. Anat. Comp. Torino, xiii. no. 311, p. 46 (1898); Rehn, Proc. Acad. Nat. Sci. Philad. 

 1905, p. 422. 



A Tropical-American genus composed of several small to medium-sized and rather 

 strikingly-coloured locusts which live among the rank undergrowth in and about the 

 margins of forests and jungles. One or two of the species are more or less metallic 

 green or bronze in life, and produce a glittering effect as they hop about among the 

 luxuriant vegetation. 



At least four species have thus far been described. They may be separated as 

 follows : — 



Synopsis of the Species of Dellia. 



A 1 . Tegmina of moderate size and lateral. Apex of hind femora black. 



b l . Larger (length, ^,18 mm.). Tegmina narrow. [Cuba.]. ... [1. insulana, Stal.] 

 b 2 . Smaller (length, $ — ?, ? 15'5 mm.). Tegmina oval. [Costa 



Rica.] 2. ovatipennis, Rehn. 



A*. Tegmina very minute or entirely absent. Apex of the hind femora 

 concolorous. 

 b\ Anterior and median femora oil-green. Tip of <$ -abdomen not 



strongly recurved 3. bimaculata, Rehn. 



b 2 . Anterior and median femora largely carmine. Tip of <$ -abdomen 



strongly recurved , 4. miniatula, Rehn. 



[1. Dellia insulana, Stal 



Dellia insulana, Stal, Syst. Acrid, i. p. 83 (1878) ' ; Bolivar, Mem. Soc. Zool. Fr. 1888, p. 146 2 ; 

 Orthopt. Cuba, p. 31 (1888) 3 ; Gundl. Ent. Cub. ii. p. 344 (1890) \ 



Hab. West Indies, Cuba 1_4 .] 



2. Dellia ovatipennis, Rehn. 



Dellia ovatipennis, Rehn, Proc. Acad. Nat. Sci. Philad. 1905, pp. 428-430, figg. 24, 27 

 Hah. Costa Rica, Carrillo K 



This species is in all probability most closely related to the preceding, which is the 

 type of the genus. 



3. Dellia bimaculata, Rehn. 



Dellia bimaculata, Rehn, Proc. Acad. Nat. Sci. Philad. 1905, pp. 426-428, figg. 25, 26 \ 

 Hab. Costa Rica, Carrillo 1 . 



