PSETTDOPHYLLODKOMIA.— CEKATINOPTEEA. 47 



1. Pseudophyllodromia venosa, Sauss. (Tab. III. fig. 30.) 



Blatta venosa, Sauss. Kev. et Mag. de Zool. 1864, p. 310. 13; Mem. Mex., Blatt. p. ]06. 45. 



Subtus testacea. Caput rufescens ; palpis albidis, basi fuscis. Antennse fuscae, articulis primis 2 sequenti- 

 busque subtus luteis, scapo apice puncto fusco. Vertex late prominulus. Pronotum transverse ellipticum, 

 margine posteriore in medio leviter producto, rotundato. Discus fusco -niger, linea longitudinali in medio 

 angustata, punctis 2 in medio disco, vittaque utrinque irregulari vel interrupta flavis : margiaibus latera- 

 libus testaceo-pellucidis. (Yariat disco nigro, flavido-multiguttato.) Elytra rufo-castanea, elongata, 

 angusta ; margine costali ultra medium subsinuato, in requiete abdominis margines obtegentia et super- 

 antia ; margine costali basi vittisque inter venas costales, 2 in campo anali, 1 inter venam discoidalem et 

 ulnarem basi, alteraque brevi ad basin areas medio-discoidalis, luteis. Yena discoidalis tantum furcata, 

 ultra furcam curvata (ut in g. Thyrsocera), venae longitudinal es campi discoidalis propter hoc tantum 3. 

 Alae leviter griseo-flavicantes, splendide nitidae, venis rufo-castaneis. Venulae costales fuscae, longe in- 

 crassatae ; margo costalis magna parte fuscus. Vena ulnaris biramosa. Venulae transversae campi radiatae 

 inter radios tantum 1 ; inter ramos axillares et inter radios internos 2. Pedes testacei. Abdomen rufo- 

 aurantium. Cerci longiusculi, rufescentes, frequenter fusco- umbrati, apice graciles, acuti. 



$ . Lamina supra-analis brevis, valde transversa, margine postico transverso ; segmentum ventrale ultimum 

 trigonali-incisum. 



J . Lamina supra-analis brevis, transversa, margine postico obtusangulato, rotundato. Lamina infra-genitalis 

 parabolica, in medio sty lis 2 crassis instructa. 



Var. Abdomen fascia intramarginali fnsea, margine pallido. Alae apice leviter infuscatae. — b. Elytra vittis 

 luteis nullis. 



Long. 9'25 ; elytr. 9-5, pronot. 2-5, latit. pronot. 3*6 millim. 



Hab. Mexico (Saussure), Teapa in Tabasco (E. II. Smith). 



I first described this species under the name Blatta venosa (loc. cit.). Subsequently 

 (Miss. Scient. Mex., Orthopt. p. 44. 3) I united it with B. angustata, Latr., from 

 Colombia, Guiana, and Peru ; but it is perhaps distinct from that species, the ulnar 

 vein of the wing having only two branches, and the apical margin being not or only 

 very slightly infuscated, while in B. angustata the wings are infuscated on the apical 

 margin and have three ulnar branches. It is difficult to decide whether B. venosa and 

 B. angustata are to be considered as distinct, or as mere varieties of one and the same 

 species (Saussure). 



Many specimens were sent by Mr. Smith from Tabasco. 



2. Pseudophyllodromia maximiliani, Sauss. 



Pseudophyllodromia maximiliani, Sauss. Melang. Orthopt. i. 2 e fasc. p. 100. 3, fig. 35. 

 Hab. Mexico (Mus. Genavense). 



CEKATINOPTERA, Brunn. 



Ceratinoptera, Brunn. de W. Syst. Blatt. p. 75; Saussure, Miss. Scient. Mex v Orthopt. p. 20. 



Caput crassiusculum, convexum, oculis valde remotis. Pronotum corneum antice et postice truncatum, 

 utrinque deflexum, disci impressionibus nullis vel vix ullis. Elytra cornea. Alae venis costaKbus brevibus 

 parum obliquis ; vena ulnari ramos apicales emittenta. Femora spinosa ; anteriora margine interno 

 dimidia parte basali spinis 4-5, dimidia parte apicali inermi. (Lamina supra-analis majuscula, $ incisa, 

 cf trigonalis vel transversa.) Cerei parum elongati, depressi, acuti, 9-articulati. 



