573 
ZOOLOGICAL LITERATURE. 
b. Face shorter, inferior angle very obtuse j clypeus one-third length 
of forehead Atractotypus (g. n.) \ 
2 Margin of vertex obtuse ; apex of forehead not pitted. 
a. Pronotum triangular in front, straight behind. 
Tylozygus (g. n.);^^^ 
b. Pronotum nearly reniform, scarcely notched or sinuated behind. 
Tettigonia (Lat., Germ.). 
c. Pronptum reniform Euacanthm (Germ.). 
n. Ocelli on the edge of the vertex or wanting. 
A. Margin of vertex trenchant. 
1. Vertex tongue-shaped, foliaceous Glossoeratus (g. n.) 
2. Vertex parabolically triangular Paraholocratus (g. n. )^. 
B. Union of vertex and forehead rounded or convex. 
1. Clypeus narrow, bent in below GrypoteSf (g. n.) 
2. Clypeus straight, not bent in below. 
a. Sectors of the elytra forming only 1 cell before the transverse 
veins, or 3 cells in a second series. 
* Ocelli somewhat visible from above. Caryphceus (g. n.)®, 
t Ocelli not visible from above. 
a. Veins in the clavus and sectors with transverse veins gene- 
rally abbreviated, as if feathered. Phlepsius (g. n.) . 
/3. Veins and sectoi* *s with only a few transverse veins. 
a. Outer sector only forked towards the middle j branches 
fr’ee Macrosteles (g. n.)“. 
b. Outer sector forked at one-third of its length from the 
base ; inner branch forked. 
** Inner branch of first fork united by a transverse 
vein to inner simple sector. 
aa. Outer branch of first fork joining outer branch 
of second. 
— Vertex very short, its margin parallel to that 
of pronotum .... Gnathodus (g. n.) 
= Vertex rectangularly triangular. 
Thamnus (g. n.) 
j8/3. Outer branch of first fork long, widely forked 
at apex. 
— Posterior margin of pronotum sinuate. 
AthysanuSf Thamnotettix, 
= Posterior margin of pronotum straight. 
Face transverse, oval. 
Opsius (g. n.) ", 
Face transverse, rhombic. 
Cicadula (Zett.). 
tt Inner branches of first and second forks united to 
inner sector by transverse veins, forming 3 cells 
on inner sector. 
^ P. 501. 1 n. sp. “ Ibid. Tettigonia nigrolineata,EiQh. ^ P. 602. 2 n. sp. 
* Ibid. 1 n. sp. ® P. 603. Jassus puncticoUis (Il.-Sch.). ° Ibid, Jassus 
gyllenhali (Fall). Ibid. 1 n. sp. ^ P. 604. Jassus sexnotatus and septem- 
notatus (Fall.). ® P, 605. Jassus pimctatus (Fall.). Ibid. J. conjinis 
and dahJbomi (Zett.). " Ibid. O. stactogalus (Amyot), 
