OEOCHAEIS. 275 



of the male elytra is anteriorly rectangular, while iu the Antillean insects it is elongate 

 and anteriorly acute-angular. The drums of the anterior tibia? are large, while in 

 0. dominguensis they are small (in 0. antillarum not known). 



[7. Orocharis cayennensis, sp. n. (Tab. XIII. figg. 23, 24.) 



$ . Statura 0. tibialis et illi simillimus ; paulo gracilior. Ocelli minuti. Verticis rostrum sat angustum. 

 Ultimus articulus palporum plane infundibuliformis (elongato-trigonalis), basi haud gracillimus, supra 

 haud sensim sinuatus. Elytra S angusta, illis 0. gaumeri et 0. ocellaris conformia ; veua stridulante valde 

 obliqua ac undata, venisque transversis (v, v') valde retro-oblique longitudinalibus. Area apicali longi- 

 uscula. Alae longiuscule caudatse. Tibiae anticae utrinque tympano elliptico instructae. Femora postica 

 gracilia. Tibiae posticae spinis 6 : 8 armatae. 



3 . Long. corp. 17 ; pronot. 2*5 ; elytr. 17 ; femor. post. 11*5 millim. 



Figures. — Fig. 23, base of tbe male elytra ; v, v\ venae transversae. — (Comp. 0. gryllodes, Tab. XIII. fig. 22.) 

 — Fig. 24, the terminal joints of the maxillary palpus, <S . 



Hdb. Guiana, Cayenne (Prudhomme). 



Differs from 0. tibialis in the regularly funnel-shaped apical joint of the maxillary 

 palpi. The vena stridulans and the vence transversa^ of the male elytra are much more 

 longitudinal, not transverse as in 0. tibialis, in which insect, moreover, the vena 

 stridulans is not undulated nor sinuated.] 



8. Orocharis maya, sp. n. 



3 . Statura miuore 0. vaginalis, fulvescens. Vertex leviter planatus. Ocelli mediocres, sat propinqui ; inter- 

 medins major, transversus; laterales minores, cum canthis obliquis juxtaocularibus plus minus confusi, 

 indistincti. Palporum articulus ultimus parum arcuatus, elongato -infundibuliformis. Pronotum utrinque 

 vitta nigra. Elytra punctis paucis nigris. Vena mediastina ramos 8-9 emittens. Vena stridulans 

 parum obliqua, flexuosa, cum parte basali venae analis angulum obtusum efficiens. Vence transversa 

 transversales. Speculum fere aeque latum ac longum, antice subobtusangulum. Area apicalis breviuscula. 

 Alae elytrorum longitudine, haud caudatae. Tibiae anticae latere intern o tympanum ellipticum grande, per 

 lineam opacam divisum, latere externo depressionem oblongam haud membranaceam, obferentes. Femora 

 postica crassiuscula. Tibiae posticae supra basi macula elongata nigra spinarumque basi fusco-circumdata. 



$ . Long. corp. 13 ; pronot. 2-5 ; elytr. 12 ; femor. post. 9-2 millim. 



Ilab. Mexico, Temax in N. Yucatan (Gaumer). 



Very near 0. ocellaris, but with the ocelli concolorous with the head and not so large. 

 The posterior ocelli are small. The apical area of the elytra is longer than in 0. ocellaris, 

 elongate-triangular. 



9. Orocharis gryllodes, Pallas. (Tab. XIII. fig. 22.) 



Gryllus gryllodes, Pallas, Spicil. Zool. p. 16, t. 3. fig. 10 (<J) (1772); Oliv. Encycl. Meth., Ins. vi. 



p. 637. 15 (1791). 

 Eneoptera gryllodes, de Haan, Bijdrag. etc. p. 232. 6. 

 Orocharis gryllodes, Sauss. Melang. Orthopt. 6 e fasc. p. 755. 5. 

 ? Gryllus unicolor, Oliv. Encycl. Meth., Ins. vi. p. 635. 7. 



Statura minore, fulvo-testaceus • capite et pronoto fusco-variis ; elytris in cantho, tf in tympano, remote, fnsco- 



2Nn2 



