92 



many Achilini, Ricaniinae, &c., and many forms are still known 

 only as uniques. 



I have therefore used the venation principally, especially the 

 condition of the costal vein. 



I have given little value to one of Stal's principal characters, 

 viz: the running- of the anal vein into the commissure or into 

 the apex of the clavus, as all interniediate stages are present 

 and it separates obvious allies. 



The arrangement of sensory organs on the nymphs will prol)- 

 ably be of great value, but from lack of certain definite material 

 I cannot elaborate certain clues I seem to have found. 



The following is an attoupt at a more natural grouping: 



P^am. I. Poekillopteridae. 



Costal vein fully developed, costal area nearly always with 

 cross veins (*). Pronotum nearly always truncate behind. Sub- 

 apical transverse line or lines on tegmina. (f) 



Subfamily i. Lophopinae. 



Head narrower than pronotum ; labium short, stout, the last 

 segment short. (The antennal sensory organs appear to have 

 an encircling of a few upright spines). Pronotum basally trun- 

 cate. Costal vein fully developed, costal area with cross veins. 

 No properly defined subapical transverse line or lines on the 

 tegmen. Clavus not granulate. Hind tibiae spinose. First 

 segment of hind tarsi short and stout. 



Embraces 12 genera, the 7 established or confirmed by Stal, 

 as well as Asforga, Brixioidcs, Bisma, Jk'atiiia and Pitambara. 

 Distant describes species in Scrida and Zaiiiila, appearing to 

 have overlooked the fact that Stal has cited Zamila as a synonym 

 of Pyrilla, and stated that Scrida was not to be distinguished 

 from Lophops. The structure of the head and the venation ex- 

 clude KitsuDia, Vanna and Padanda placed here by Distant. 



Subfam. 2. Tropiduchinae. 



Clavus not granulate. Pronotum tricarinate, emarginate be- 

 hind. Hind tibiae spinose, first segment of hind tarsi usually 

 somewhat long. 



* Exot'iit OxKiu Tamhiuia, and t-te. 

 + Except the L(>i)h(iphiite. 



