﻿87 



3a Pronotum crested or tuherculate or carinate. Head shorc- 

 er than the pronotum (6) 



4 Vertex sulcate longitudinally without an articulated appen- 

 dix; fore tibiae a little dilated (5) 



4a X'ertex not sulcate, longitudinally, but with an articulated, 



elongate apical appendix ; fore tibiae not dilated 



- I Dicstostcmma 



5 Vertex prolonged hliformly; ocelli about as far from one 

 another as from an eye ; antennae short. Tegmina reti- 

 culate apically 2 Bascarrhiniis 



5a X'ertex not prolonged filiformly ; ocelli about twice as far 

 from another as from an eye ; tegmina not reticulate. 3 Cictus 



Pronotum crested 4 Zyzza 



6a Pronqtum not crested (7 ) 



7 Pronotum with 2, compressed, tliverging horn-like append- 

 ages 5 Zyzzogctoii 



7a Pronotum with 2 crescentiform tubercles 



6 Lcncopcpla (type Tcttigoiiia bifiibcrciilata Sign.) 



8 X'ertex triangular, strongly narrowed, with a filiform, non- 

 articulated, apical process (9) 



8a X^rtex rounded apically (or if triangular, then not pro- 

 duced) (12) 



8b X^ertex triangular, with a subfoliaceous (or foliaceous?) 

 process which curves back so as almost to touch the prono- 

 tum 7 IVolfcllar' 



9 Vertex not gradually passing into the apical process, which 

 is much narrower than the apex of the vertex proper; fore 



tibiae dilated 10 Rhaphirhiuus 



9a Vertex gradually merging into the apical process ; fore ci- 



biae scarcely, if at all, dilated (10) 



. 10 X'ertical prolongation widening a little apically, not sulcate, 



truncate ; vertex indistinctly sulcate 



II Syn'iigoplwra (type Tcttigoiiia brcz'is Walker). 



10a X'ertical prolongation narrowing to the apex, sulcate ; ver- 

 tex distinctly sulcate (11) 



11 Pronotum posteriorly truncate 12 Acrobdus 



iia Pronotum posteriorly emarginate 13 CafoiiJiorrhinus 



12 Fore tibiae fiat or sulcate (13) 



13a Vertex longitudinally sulcate; pronotum nearly always dis- 

 tinctly narrowed in front ; hind margin of propleura dis- 

 tinctlv rounded or produced (18) 



* 8 Splonia and 9 PrniJ€tei< seem to be allied here, Ixit I have not the desoription of 

 the former and do not know either in nature. 



