3 
22 
(4). 
(7). 
(6): 
STATS SYSTEMA ACRIDIODEORUM. 
FP. Costa frontalis ante et pone ocellum subito nonnihil 
coarctata, pone ocellum elevata et cum fastigio antrorsum 
prominula, pone antennas sensim fortiter angustata, basi 
fortiter compressa; vertex inter oculos leviter declive; 
fastigium occipite humilius; oculi lati, fortiter convexi; 
ocellus coste frontalis ab antennis levissime remotus; 
pronotum dorso carina media obtusa instrucetum, lobo 
postico lobo antico multo breviore, margine postico obtuse 
rotundato vel angulato, inter medium et humeros utrimque 
sinuato; elytra angusta, minus dense venosa; tuberculum 
prosternale crassum, breve, obtusum; pectus angustumj; 
lobi metasternales marium leviter, feminarum magis di- 
stantes; femora postica margine dorsali parce serrato, 
lobo geniculari exteriore triangulari; tarsi mediocres; tibize 
posticae in margine exteriore spinis typice novem armatee; 
tympana retrorsum leviter vel levissime immersa; cerci ma- 
rium mediocres, graciliusculi, sensim acuminati, apice sub- 
curvi, vix compressi. — (Gen. 1.) 1. Coryphistes CHARP. 
SP. Costa frontalis basi haud vel minus fortiter com- 
pressa, haud nisi ante ocellum coarctata; oculi minus lati; 
tuberculum prosternale alte elevatum; lobi geniculares fe- 
morum posticorum apice rotundati. 
FA? Typus americanus; costa frontalis ante ocellum magis 
minusve distinete coarctata; intervallum loborum meso- 
sternalium haud vel vix transversum; lobi mesosternales 
haud vel vix transversi; ocellus coste frontalis a serobibus 
antennarum leviter vel levissime remotus; tuberculum pro- 
sternale teres vel compressiusculum, obtusum; tibia poste- 
riores extus spinis septem vel octo typice armatae; tarsi 
anteriores mediocres vel longiusculi; tympana retrorsum 
leviter immersa; cercl marium cognitorum breves, sensim 
acuminati, prope basin intus processu armati. — (Gen. 2—3-.) 
SP. Costa frontalis ante ocellum utrimque distincte si- 
nuata, ibidem coarctata, pone antennas basin versus sen- 
sim angustata; fastigium verticis horizontale, pone me- 
dium lateribus subparallelis instructum, ante medium 
sensim angustatum; antenn anguste ensiformes; elytra 
minus dense reticulata, inter costam et radium vena inter- 
calata instructa; cerci marium breves, compressiusculi, 
sensim acuminati, intus prope basin processu sat longo, 
sub lamina supraanali occulto, instructi; margo apicalis 
segmenti dorsalis ultimi marium lobulis tuberculisque mi- 
nutis nigris pluribus instructus; lamina supraanalis marium 
nigro-granulata; lamina subgenitalis marium breviter conica, 
nonnihil recurva. — 2. Vilerna STÅL, 1873. 
2. Costa frontalis ante ocellum utrimque non nisi ob- 
soletissime sinuata, per fere totam longitudinem basin 
versus subsensim angustata; carin& laterales frontis sensim 
