168 OKTHOPTEEA. 



breviores, margine antico obscuriore, venulis transversis a supero brunneis, in certa luce luteia ; campus 

 anterior angustus, posteriorem sat superans, sinu anali itaque distincto; ramus anterior furcae venae 

 ulnaris arcuatus. Pedes anteriores graciles, fusco-punctati. Coxae anticae retro ad basin prothoracis 

 attingentes, marginibus integris, fusco-punctatae, posterius marmoratae. Femora fusco -marmorata, apice 

 pallida, plus quam dimidia parte spinosa, a medio ad apicem attenuata, intus spinis 12, scilicet 6 alter- 

 natim minores ac majores, 4 minutae, 1 major, ultima dentiformi. Tibiae annulis vel maculis 2 fuscis, 

 quarta parte femorum vix longiores ; margo internus spinis 4 (2 a minuta, 4 a longiore ungue apposita 

 leviter ad superum rejecta) necnon basi dentulis minutis 3 ; margo externus spinis 4, primae 3 minimae, 

 l a a sequentibus remota, ante medium sita, ultima major. Pedes intermedii et posteriores lutei, fusco- 

 fasciati. Abdomen elongatum. Lamina supra-analis anguste trigonalis, carinata, infragenitalem parum 

 superans. Cerci prominentes, 10-12-articulati. 

 Long. 35 ; pronot. 8, femor. ant. 5-5, elytr. 19*25, latit. elytr. 4*3 millim. 



Hal. Panama, Bugaba 800 to 1500 feet, Volcan de Chiriqui 2500 to 4000 feet 

 (Champion). 



4. Mionyx lineativentris, Stal. 



Musonia lineativentris, Stal, Syst. Mant. p. 66 (c?) (1877) ; Westw. Revis. Mantid. p. 6. 



c? . Gracilis, obscurus. Vertex utrinque haud lobatus. Prothorax modice longus ; ejus pars postica quam 

 coxae anticae longior. Elytra et alae infuscata. Elytra alarum longitudine. Alae margine apicali campi 

 antici truncate Pemora antica intus ad marginem inferiorem maculis 2 nigris, altera media et extus 

 linea longitudinali basali nigra notatis ; margine interiore spinis 9-10 armata. Tibiae extus spinis 3-4, 

 intus 4 alternis magnis alternis parvis, armatae et praeterea ad unguem spina magna, a margine inferiore 

 nonnibil remota. Venter linea longitudinali subtili media in apice segmentorum ampliata, nigra, 

 ornatus. 



Long. 33 ; pronot. 9, elytr. 21, alar. 20, femor. ant. 6 millim. 



Hal. Panama, Chiriqui (Stal). 



5. Mionyx dohrnianus, sp. n. (Tab. IX. fig. 16.) 



3 . Griseus vel fulvescens. Vertex valde compressus, ad oculos lobo rotundato prominulo, inter illos trans- 

 versa, antice marginatus, margine in medio per gibbum frontalem interrupto. Prothorax breviusculus ; 

 ejus pars postica parte anteriore haud longior, ante medium bituberculata ; ampliatio brevis ac lata, 

 angulis rotundatis, collo anterius attenuato, rugato et granulate Margines pronoti remote denticulati, 

 ad ampliationem anguste testacei, pone tuberculos discoidales et in apice colli haud translucidi. Elytra 

 et alae vitrea, leviter nebulosa, venis brunneis. Elytra alis paulo longiora, dense irregulariter reticulata, 

 venulis gracilibus haud coloratis ; campus marginalis et margo posterior brunneo-punctati ; discus ad venas 

 irregulariter fusco-punctatus. Alae apice ad marginem fusco-punctatae, venis infuscatis, margine apicali 

 fusco-punctato ; campo anteriore obtuso, sinu anali nullo. Pedes brunneo-fasciati. Coxae anteriores 

 prothoracem retro superantes. Pemora quam in speciebus praecedentibus crassiora, in medio latitudine 

 latiora, basi et apice aequaliter attenuata ; spinae dimidiam partem apicalem replentes. Tibiae spinis 

 extus 5, intus 8. Lamina supra-analis trigonalis, infragenitalem haud vel vix superans. Cerci fulvi. 



Long. 25 ; pronot. 6, femor. ant. 5*5, elytr. 20, latit. elytr. 5*25 millim. 



Hal. Guatemala (coll. Dohm). 



This very distinct species differs from its allies in having the anterior femora 

 triangular, and the pronotum short and more broadly dilated. The wings are also 

 differently coloured ; they are broader than in M. swvus, and narrower than in M. ferus, 

 but as the apex is shaped nearly as in the latter, the anterior field is not so much 

 projected beyond the posterior. 



