THE TETTIGrIDiE OF CEYLON. 
Ill 
0.—Head appreciably exserted ; vertex elevated forward ; antero- 
dorsal margin of pronotum not advanced to the eyes. (Plate 
II., figs. io-m) 
Euparatettix , gen. nov. (p. 145) 
0.0.—Head not at all exserted; facial frontal costa viewed in 
profile more or less arcuate produced before the eyes, not 
sinuate ; antennas inserted between the eyes. (Plate III., 
fig. 18.) 
Gen. Hedotettix , Bol. (p. 148) 
P.—Front margin of vertex imperfectly carinated, narrowed 
forward. 
Gen. Goptotettix , Bol. (p. 152) 
I.—Subtribe CL A DON OTINJE. 
Deltonotus , gen. nov. 
Plate I., figs. 2-2 a. 
Body rather shiny, rugulose, punctate. Face broad, viewed in 
profile scarcely oblique ; eyes triangular conico-rotundate, not 
exserted. Antennae short, filiform, widely separated, inserted 
below the eyes. Vertex obtuse angulate; facial frontal costa 
distinct above, strongly triangularly scutellate, advanced before 
the eyes. Pronotum acute tectiform, subcompresso-cristate with 
lateral surfaces flattened ; dorsal margin of crest above gently 
arcuate, in profile anteriorly angulate produced, posteriorly 
angulate, abbreviated; median carina of pronotum distinctly 
elevated. Femora entire, margins of posterior tibiae armed with 
distinct spines ; first article of posterior tarsi fully twice the 
length of the third. 
Related somewhat to Piegotettix , Bol. (from the Philippines), 
but it is readily distinguished from that genus by its much smaller 
stature, the form of the pronotum and other characters as shown 
by the figures and description. So far as known this genus is 
confined to Ceylon and is monotypic. 
1. —Deltonotus tectiformis , sp. nov. 
Plate I., figs. 2-2 a. 
Body small, somewhat shining, rugulose punctate. Vertex 
nearly twice the breadth of one of the eyes, viewed in profile 
obtuse angulate, considerably advanced before the eyes; the 
crown of head elevated above the eyes about one-third their 
height and covered by the produced anterior margin of the 
pronotum ; frontal costa strongly triangularly scutellate, furcate a 
little above the middle of the eyes, the rami diverging substraight, 
8(25)04 Q 
