138 OETHOPTEEA. 



11. Acontista vitrea, sp. n. (Tab. VI. fig. 9.) 



c? . A. cordillerce simillima ; elytris et alis totis vitreis. Elytra campo marginal! viridi-coriaceo, stigmate 



minimo (vel deficiente) fusco. Alse margine costali partiin prasino. 

 Var. In desiccatis eosta alarum nonnunquam rufescens, sed alarum basis haud rubra. 

 Long. 21 ; pronot. 5*5, femor. ant. 5-5, elytr. 18*6, latit. elytr. 5 millim. 



Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith) ; Costa Eica (Biolley, in Mus. 

 Genavense) ; Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 



It is not unlikely that A. vitrea may prove to be a pallid male variety of A. mexicana. 



[12. Acontista bimaculata, Sauss. 



Acontista bimaculata, Sauss. Bull. Soc. Ent. Suisse, iii. p. 229 ( 6 ) (1870) ; Mem. Mex., Mantid. 

 p. 39. 6; Miss. Scient. Mex., Orthopt. p. 240; Westw. Revis. Mantid. p. 23. 



c? . Viridis ; prothorace brevi ; scutellum faciale superne productum, rotundatum. Elytra et alse longa, 

 angusta, hyalina ; elytra virescenti-venosa, campo marginali byalino-virescente, stigmate nullo ; alas 

 postice macula magna irregulari fusca, marginem posticum liberante. Tibiae anticae spinis minus nume- 

 rosis, utrinque 11, externis parum contiguis. 



<3 . Long. 17-5 ; pronot. 4*3, femor. ant. 5, elytr. 19, latit. elytr. 4*8 millim. 



Hab. Beazil, Rio Grande do Sul (Dr. Ihering, in Mus. Genavense). 



A. bimaculata is the only species of the genus known to inhabit the southern parts 

 of Tropical America. All the others are from Central America and the northern portion 

 of South America. It should be remarked that A. bimaculata has special characters, 

 the marginal field of the elytra being entirely hyaline, and the anterior tibiae armed 

 with fewer spines than usual, and more acute on the outer border.] 



[13. Acontista brevipennis, Sauss. 



Acontista brevipennis, Sauss. Mel. Orthopt. ii. 4 e fasc. p. 21. 1, t. 9. fig. 20 (?) ; Miss. Scient. 

 Mex., Orthopt. p. 241 ; Westw. Revis. Mantid. p. 22. 



Hab. Brazil.] 



Obs. — Mantis minuta, Fabr. Ent. Syst. ii. p. 24. 50 ( j ) ; Sauss. Mem. Mex., 

 Mantid. p. 39. 7 ; is perhaps an Acontista, 6 , of South America. 



Acontista major, Sauss. Miss. Scient. Mex., Orthopt. p. 241. 5, belongs now to the 

 genus Melliera. 



[TITHRONE, Stal. 

 Tithrone, Stal, Syst. Mant. pp. 42, 62 (1877). 



We agree with Stal in separating A. roseipennis, Sauss., from Acontista, the armature 

 of the anterior tibiae being very different, i. e. normal as in most of the Mantinas. 



