60 [August, 



Zymna as type of Pentila in opposition to the express declaration of 

 the describer of the genus, as also it would necessitate the descrip- 

 tion of a new genus to contain JPentila undularis, which differs con- 

 siderably both in neuration and palpi from the other species associated 

 with it, and which belong to the genus Tingra, I propose that the 

 suggestion of Mr. Scudder be adhered to, and that P. undularis, 

 though not described until some time after the genus founded for its 

 reception, shall be retained as the true type of Pentila. 



British Museum : 



June, 1885. 



])ESCRIPTION OF A NEW SPECIES OF CICADID^ FROM 

 BUENOS AYRES. 



BY W. L. DISTANT. 



Peoarna capisthata, n. sp. 



Body above ocliraceous ; head with two large and contiguous obhque black 

 spots on disc, and with a broad and broken black fascia on vertex between the eyes ; 

 eyes dull luteous, spotted with black ; pronotum with two small central black spots 

 on anterior margin, and two minute rounded black spots on centre of the anterior 

 border of posterior margin. Mesonotum with two obconical black spots on anterior 

 margin, followed by a central narrow cruciform spot, and with a small black spot in 

 front of each anterior angle of the cruciform elevation, and a large broken and in- 

 distinct sub-marginal oblique fascia on each side. Scutellum with a central, trans- 

 verse, linear black spot. Abdomen above with a central dark fuscous spot on basal 

 segment. Body beneath ocliraceous ; the face with a central longitudinal black 

 line and the intermediate femora also spotted with black (anterior and posterior legs 

 mutilated). Tegmina pale, hyaline, the costal area and venation ochraceous, 

 excepting the veins dividing the apical areas which are fuscous ; a dark fuscous spot 

 at the bases of the three upper apical areas, two small black spots near base of third 

 ulnar area, and the transverse vein at apex of fifth ulnar area also black. Wings 

 pale hyaline, with the venation ochraceous. 



Face tumidly convex and with strong transverse striations ; rostrum reaching : 

 posterior coxae, and with its apex fuscous ; opercula short and broad, inwardly ' 

 attenuated and obtusely angulated, not quite meeting at centre, and not passing the ) 

 base of first abdominal segment. Long., 20 mm. ; exp. tegm., 50 mm. 



Hah. : Buenos Ayres. 



Prof. C. Berg, of the Museo Publico at Buenos Ayres, having; 

 recently submitted the types of his described si^ecies, and also some t 

 others, unnamed, for my comparison and identification, I found I 

 amongst them the above distinct and apparently undescribed species. . 

 Prof. Berg having asked me to describe it, I now accordingly do so, , 

 and a coloured figure of the insect will appear in a forthcoming partt 

 of Mr. Waterhouse's "Aid," which will also be accompanied with the' 

 figures of some of Prof. Berg's recently described species. 



Purley : June 28th, 1885. 



