CYCLOPTERA. 457 



[CYCLOPTERA, Serv. 

 Cycloptera, Serville, Hist. Nat. des Orthopt. p. 439 (1839); Brunner v. W. Monogr. der 

 Pseudophyll. p. 267. 



1. Cycloptera carinifolia, sp. n. (Tab. XXII. fig. 20.) 



S . Maxima, crassissima, tota viridis, immaculata. Pronotam posterius quam anterius duplo latior. Prozona 

 quam metazona valde brevior ac angustior, supra rotundata, sulcis rufis ; anteriore subtiliore, postenore 

 arcuata, subangulata, supra utrinque apice foveolata, debinc subito evanida, scilicet in lateribus subtili 

 obsoleta. Metazona latissima, postice rugulosa, margine postico late rotundato, sinu humerali fere 

 rectangulo, rotundato. Lobi laterales quam altiores valde breviores, infra truncati, angulis rotundatis. 

 Prosternum, meso- et metasternum acute bispinosa ; spinis perpendicularibus, modice longis. Elytra 

 amplissima, late elliptica, margine anteriore toto arcuato, prasertim ultra medium; margine postico 

 arcuato, ultra medium subsinuato (apice obtusangulo ?). Campus discoidalis quam campus marginalis 

 fere duplo latior. Vena mediastina (to) valida, 3-4-ramosa. Vena principalis (discoidalis, d) subrecta, 

 unica, basi crassissima, subtus maxime lamellari-prominula, venas costales 5-6 emittens, dehinc furcata : 

 ejus ramus anterior (vena humeralis, h) ramosus, ad partem curvatissimam marginis antici excurrens ; 

 ejus ramus posterior (vena discoidalis, d) fere rectangulatim retro-decurvus, extus ramos 3-5 ad marginem 

 apicalem emittens : primo (z) apicem elytri formante, sequentibus (2') pone apicem finem habentibus. 

 Vena ulnaris (u) longitudinalis, a vena anali emissa, cum vena discoidali (d) confiuens. Campus 

 analis (a) maximus, elongato-trigonalis, per cantbum crassissimum, prominulum, per venam analem 

 formatum, a campo discoidali separatus. Campus tympanalis maximus; sinister coriaceus, speculo 

 ovato, subcoriaceo, dexter subcoriaeeus, speculo vitreo (s) instructo. Ala? longiores quam latiores, 

 rotundata, hyalina. Pedes graciles. Eemora 1, 2 supra teretes, subtus marginibus acutis, margine 

 interno tota longitudine dentibus minimis parum acutis instructo. Eemora postica subtus compressa, 

 carina externa prominula, tota longitudine dentibus minutis armata ; carina interna tenuis, in latere 

 interno dejecta, dimidia parte distali dentibus 4, 5 pradita. Spinula omnes apice nigra. Lobi geni- 

 culares omnes acuti, postici spinosi. Tibiae antica supra teretes, foraminibus elongato-rimatis, rimis 

 superne magis apertis; valvis in utroque latere infra medium margine obtusangulo, infra longiuscule 

 subsinuato. Tibia? intermedia quadri-carinata, supra plana ac inermes, a latere basi nonnibil fusiformes. 

 Tibia postica . . . ? Lamina supra-analis transversa, margine arcuato. Cerci compressi, trigonales, 

 acuti. Lamina infra-genitalis ovata, obtusangulatim incisa, biangulata ; stylis nullis. 



S . Long. corp. 39 ; pronot. 13 ; lat. metazona 13-5 ; elytr. 58-5, lat. 42 ; long. camp, analis 33 ; femor. 



post. 32 millim. 

 Figtjee :— Fig. 20, head, pronotum, and right elytron of the male : m, mediastinal vein ; h, humeral vein, 

 fused at the base with the discoidal vein, and forming together the principal vein ; d, discoidal vein ; 

 z, z', its branches ; au, anal and ulnar veins fused together, forming the ridge of the dorsal field a ; 

 u, ulnar vein, separating from the anal vein ; 0, area discoido-ulnaris ; a, anal field ; s, speculum of the 

 tambourine. 



Hab. Guiana (Mus. Genavense). 



This large insect presents some analogy in the venulation of its elytra with the 

 Corycites (tribe Mecopodinse).] 



biol. centr.-amer., Orthopt., February 1899. 3 Nn 



