CHOKISONEUKA. 81 



its generic characters — mutic femora, &c. The elytra are not punctured ; the wings 

 have the apical field smaller and angular at the base, the venulge costales strongly 

 clavate, and the area medio-discoidalis reticulated into square cells. In A. azteca 

 this area has only two transverse venulse, the second angular and emitting a nervure.] 



5. Chorisoneura mysteca, Sauss. 



Blatta mysteca, Sauss. Rev. et Mag. de Zool. 1862, p. 167 ; Mem. Mex., Blatt. p. 110. 47. 

 Chorisoneura mysteca, Brunn. de W. Syst. Blatt. p. 258. 4; Sauss. Miss. Scient. Mex., Orthopt. 

 p. 91. 1. 



Minor, rufescens ; pedibus testaceis ; pronoti disco flavido vel brunnescente, marginibus pellucidis. Elytra <j> 

 parum elongata, parum acuta, subvitrea vel nebulosa vel in areolis brunnescentia ; rami ulnares oblique 

 pectinati. Ala? subhyalinae vel nebulosae, venis brunneis vel flavidis, campo axillari apice et campo 

 marginali flavicantibus ; area medio-discoidalis areae medio-ulnari duplo latior, tota transverse venosa. 

 Yenae costales fractae, apice nodosa?. Campus appendicularis parvus, tamen apice prominulus, basi acutan- 

 gulus, margine apicali truncato vel arcuato. Abdomen frequenter infuscatum. $ J . 

 S $ . Long. 8, elytr. 9 millim. 



Hab. Mexico, Soledad 5000 feet, Amula 6000 feet, Omilteme 8000 feet, and 

 Xucumanatlan 6000 feet, all in Guerrero, Mexico city, Teapa in Tabasco (H. H. Smith), 

 Vera Cruz (Saussure); Guatemala, Duenas, Capetillo (Champion). 



6. Chorisoneura flavipennis, sp. n. (Tab. II. fig. 21.) 



c? . Kufescens, pronoti disco capiteque flavicantibus. Antennae flavicantes, basi fuscae, articulis 1, 2 fulvis. 

 Pronoti margines vitrei. Elytra fulva, parum translucida, area costali vitrea. Rami venae ulnaris parum 

 numerosi (4-5), oblique longitudinales, plus minus furcatae. Alae vitrese, venis flavis : campo marginali, 

 campo intermedio apice, necnon campi appendicular! dimidia parte postica, flavicantibus. Yenae costales 

 6-7 clavatae opacae ; campus marginalis inter clavas opaco-inquinatus. Campus intercalatus valde pro- 

 minulus, margine apicali valde arcuato, basi rectangulo. Pedes testacei. Abdomen rufescens. — Species 

 distincta elytris coloratis. 

 Long. 8 ; elytr. 8-5, pronot. 1*8, latit. pronot. 3 millim. 



Hab. Mexico, Atoyac in Vera Cruz (Schumann). 



7. Chorisoneura pellucida, Sauss. 



Blatta pellucida, Sauss. Mem. Mex., Blatt. p. 112. 49 ( ? ). 



Chorisoneura pellucida, Sauss. Miss. Scient. Mex., Orthopt. p. 92. 3, t. 2. figg. 49, 49 a. 



Major, rufescens, subtus pallida. Elytra leviter fulvescentia vel in areolis fulva ; campo marginali pellucido ; 

 ramis ulnaribus oblique pectinatis. Alae byalinae, venis flavis ; campo axillari apice et campo marginali 

 flavidis. Area medio-discoidalis ut in C. mysteca ; venae costales a basi obliquse, fractae, clavatae. Campus 

 intercalatus basi acutangulus, apice parum prominulus, parum arcuatus, leviter incisus, campum ante- 

 riorem superans. 



2 , Long. 9, elytr. 11-5 millim. ; 6 ■ Long. 10, elytr. 10*7 millim. 



Hab. Mexico, Atoyac in Vera Cruz (Schumann), Eastern Cordillera, near Moyoapan 

 (Saussure), Teapa in Tabasco (H. H. Smith). 



biol. centr.-amee., Orthopt., November 1893. Mm 



