CHIMAROCEPHALA. 75 
Synopsis specierum. 
a. Frons cum vertice angulata, scutello verticis vix declivi. Processus pronoti acute trigonalis. 
ba Corpusiterret usb MERE DO LD ANR ENT D RE M ef) pacifica, Th. 
bb. Corpus -Heniusedimutr..s. ea eradpre Mi aetitiofe. IR NE. ES Behrensi. 
a,a. Frons cum vertice arcuata, scutello verticis declivi. Processus pronoti obtuse trigonalis, 
Corpus vus: 2 CUS. AU RN ET UE E PRMEe cr Er Es ee otomitus, Sss. 
1. Ch. pacifica, Thom. — Tragocephala pacifica, Thom. Acrid. 101. — Chima- 
roceph. pacifica, Seud. Proc. B. S.1. XVIT, 1875, 484, 4. 
Viridis vel fulvo-grisea, nigro-punctata et irrorata. Antennæ crassæ, © brevissimæ, 
g; longiores breviter acuminatæ. — Facies © vix, cj° distincte declivis, recta, cum 
vertice angulum formans. Verticis scutellum © vix, cj° haud declive, — Pronotum 
compresso-elevato-eristatum, granuloso-scabrum; crista incisa, in prozona subarcuata; 
metazona costalo-granosa, rectangula; Cj' angustum elongatumque, canthis lateralibus 
valde cariniformibus per suleum typicum unicum intersectis, et deviis; prozona 
superne quadrata; metazona postice acutangula. — Elytra ubique fusco-venosa, Gf et 
ad apicem infuscata. — Alæ angustæ, margine externo-postico arcuato; basi hyalino- 
sulfurescentes vel virescentes; margine apicali-externo nebuloso, infuscato; campus 
anticus angustus apice rotundato, © aream axillarem vix, cj' distincte superans; macula 
costalis elongata; vena media anguste furcata, ejus ramus anticus Çj'haud vel vix incras- 
satus; areolæ furcæ discoidalis j° latiores quam altiores, apice biseriatæ; vena analis 
incrassata. — Long. ©, 26, cf 16; EL © 20, jf 14 mill. — California. 
2. Ch. Behrensi. 
Antennæ çj' apice acuminalæ. Frons valde angulata, vertice vix arcuato, rostro 
haud declivi; facie declivi, recta. Pronotum lœviusculum, crista prominula, Gj' integra; 
canthis lateralibus in prozona parallelis. Elytra omnino grisea vel subconspersa, 
haud fasciata. — jf Long. 15; EL 13 mill. — Var. Pronoti prozona : a. quadrata. 
— b. elongata. — c. Alæ incondite reticulatæ. — California (a Dom. Behrens 
lecta). — Anne var. C. pacificæ ? 
3. Ch. otomita, Sauss. — Tomonotus otomitus, Sauss. Rev. et Mag. de Zool. 
XIII, 1861, 322; Thomas, Acrid. 212. 
cf. Viridis vel fulvescens. Antennæ quam caput et pronotum ad unum sublon- 
