bulletin •- v. s. :z?.,:.:::zr: :r agriculture. 
aeters — uncate with at i very listinct neck antenna i ?i~ 
segments armed with a few minut e risfl and oral or subcircular sens ::: Fore 
e - with the media twice branched : hind wings with both media and : n.1 itus pre s en : 
Cauda knobbed: anal plate bilobed, not divided: ly usually — lib art at hs 
Type fixed y 1 s : I &pl ioetz. 
3-r= -s symyz :z:ys :■::.-!-_>: 
Plate IV, DD, ZZ. 
'.'.: ~ . "- . r. 7: 
- I" : LAgr.T Z:^ - r.:~ 7.368. - 
Symdobtus of later authors. 
g ous Symydohius Mord., which w - greeted for 
len. has often been spelled Syindobius 1 y sul s uent writers. 
This is pa ~ due to th i tion : the genus m \ Russian publi- 
ti few workers, at least in t] is 
dmens :: :L_is species studi< ! w i U fced y Mo] Iwitkc ;: 
rog and Wai j Sehouteden at Brussels. Th 
i : name of ;'. \ -in America is quite distinct, 
5 has at by :ne writer. 
CMracters. — Cornicles present, tunicate : with an evider.: neck and on a broad 
low base. Antenme : six segments armed with numerous delicate hair?. sen 
somewhat oval or subcirculai: sea : unguis : : I ng and nar- 
row, with a fringe :: without a prominer.- me, canda semicircular, anal plate similar 
in shape, sometimes slightly indented Fore wings with the media twice ::>rked: 
hind wings ~ i:it both media and cnl itus present, somewhi :he base. 
Type . ipkis oklonga Heyden. 
Subtribe 5A1TUSAPHIDINA. 
The so] - Saltusaphidhi is - : ated from the other 
o - .iiicipally on the nature of the head. The most important 
hai I I . '. jssibly, is the structure ;: tile eyes, m which t:„ 
tubercles appear : wholly la ckrn^:. 
Characters. — Farms living usually in damp places upon the foliage of sedgf ; 
_ :tow elongate bodies, eyes with ocular tubercles lac.:. - modi- 
fied for leaping. Oviparous forms apterous, somewhat skniku viviparous 
: : .. - ; /:::::_■ several rggs 
Key re ise Gsnkra oe z::z Saltusaphtdi 
Head considerably elongate, cornicles cup shaped, legs modified for leap- 
inr Saltusa 
Head not much elongated, cornicles mere rings. lege : modified for leap- 
ing Thripsaphis. 
Semis TEFJPSAPHIS Gillette. 
'.". X. 
1917. Tkripujihis Gillette, Can. Z : 198. 
The genus Thripsaphis was separated from Saltusaphis for haVA 
Gillette, which : 3ent writer had included in that genus, and 
certain other similar species. 
