224 Mr, J. L. Hancock’s Studies of the 
front narrowly compressed and sulcate little above the posterior 
ocelli, the rami below moderately divergent toward the median 
ocellus ; eyes large and strongly globose, somewhat prominently 
elevated ; posterior ocelli placed near the lower third of the eyes ; 
palpi with the apical articles little compresso-dilated; antennz 
filiform and very slender, inserted scarcely below the antero-ventral 
border of the eyes. Pronotum anteriorly truncate, posteriorly 
subulate, often extended little beyond the hind femoral apices ; 
dorsum anteriorly cylindrical, the prozonal and lateral carinz 
before the shoulders wanting; between the shoulders backward de- 
planate, and behind the shoulders often subbifossulate ; median carina 
forward behind the anterior margin wanting, in front of the shoulders 
somewhat compresso-arcuate ; lateral lobes of pronotum posteriorly 
bisinuate, the posterior angles moderately laminate, and on each 
side strongly armed with a transversely produced spine, or rarely 
little produced. Elytra very small and lanceolate ; wings fully 
explicate, not extended so far as the apex of pronotal process or 
about as far. Anterior and middle femora narrow, elongate, carinze 
entire, posterior femoral margins serrulate, the genicular denticles 
moderately distinct, posterior tibig scarcely at all ampliate toward 
the apices, with the canthi compressed, spinose, and minutely 
serrulate, the first and third articles of the posterior tarsi subequal 
or the first little longest. Type Bolotettix validispinus. 
This genus is readily distinguished from Criotettiz, which 
it most resembles, in the very narrow subacuminate vertex, 
the absence of the anterior prozonal and lateral carinz 
on the dorsum of pronotum, the cylindrical character of 
the forward part of the pronotum, the strongly-produced 
spines arming the posterior angles of the lateral lobes, the 
very small elytra, and the insertion of the antennz barely 
below the eyes. 
1. B. validispinus, sp. nov. (Plate XXI, fig. 5.) 
Dark ferruginous, the face and legs lighter, the lateral thoracic 
spines and borders of pronotum rufescent, posterior femora externally 
below longitudinally striated with fuscous, posterior tibiz and under 
parts of body fuscous. Face oblique ; vertex ascendant forward, in 
front reduced to nearly one-half the width of one of the prominent 
and globose eyes, anteriorly subobliquely marginate on each side, 
in profile not at all produced, middle feebly carinate, very little 
longitudinally sulcate on each side, supraocular lobes indistinct ; 
frontal costa little compresso-elevated between the antenne. Pro- 
notum anteriorly cylindrical, subulate posteriorly, little concave 
backwards, and extended beyond the knees of the hind femora and 
