40 PROCEEDINGS OF THE ACADEMY OF [Feb., 



The position of Eupnigodes and Zapata is taken from other authors, 

 while Ligurotettix is placed here instead of in the Epacromioe, as it is 

 quite different from Mecostethus and Epacromia, approaching Aulocara 

 in some respects. While no doubt somewhat aberrant Ligurotettix is 

 clearly a member of the Scyllinse, the intercalary vein, for example, 

 being no stronger than is the case in many specimens of Aulocara. 



EUPLECTROTETTIX Bruner. 



1900. Ewpledrotettix Bruner, Ace. Gen. Spec. Locusts Argent., pp.23; 38 

 (Eupletrotettix laps. p. 38). 



Included E. ferrugineus, conspersus, schulzi and prasinus Bruner, 



of which ferrugineus msty be considered the type. 



Eupleotrotettix ferrugineus Bruner. 



1900. Euplectrotettix ferrugineus Bruner, Ace. Gen. Spec. Locusts Argent., 

 p. 39. [Sandy knolls about Asuncion, Paraguay; Territory of Formosa, 

 Argentina.] 



Sapucay, Paraguay. February 13, 1903; December 16, 1904; Janu- 

 ary 26, February 10-25, March 2-19, 1905. 9 6'd',lO 9 9 . (Foster, 

 Hebard Coll.) 



These specimens are all larger than the measurements given by Bruner, 

 but otherwise do not appear to materially differ. The series is quite 

 uniform in size, and an average c? and 9 measure as follows : 



Length of body, 18.5 mm. 25 mm. 



Length of pronotum, 3.5 " 4.8 " 



Length of tegmen, 15.5 " 21 " 



Length of caudal femur, 11.5 " 15.2 '' 



Two distinct types of coloration are present, one irregularly 

 mottled and washed with fuscous, the other with a light orange 

 ochraceous median bar on the head and pronotum, flanked by blackish 

 lateral lines, which are filiform on the head and broader on the pro- 

 notum. The tegmina in the latter type also possess a pair of light 

 parallel longitudinal lines on the anal areas. 



The indications of femoral bars mentioned by Bruner are quite 

 strong in nearly all the females and several of the males examined, 

 w^hile the blackish genicular region of the cJ' and the orange-red 

 abdomen of the same sex are quite striking. 



SCYLLINA St&l. 

 187 . Scyllina Stal, Recensio Orthopterorum, I, p. 112. 

 Included S. peragrans (Stal) and S. viatoria (Saussure) of which 



