Genera and Species of Phytophaga. 233 
erebre punctatis, margine basali plagisque tribus, duabus 
transversim ante medium, tertia magna pone medium, super- 
ficiem fere amplectente, positis, pallide fulvis ; thorace punctis 
duobus fuscis notato. 
Var. A. Thoracis punctis fuscis obsoletis, elytrorum plagis 
inter se confluentibus. 
B. Elytris totis fulvis. 
C. g Abdomine nigro, disco obscure fulvo. 
Long. 4—43 lin. 
Hab. Port Natal. 
Epistome strongly raised into a longitudinal ridge between the 
insertion of the antennee; between the upper portion of the eyes 
extends a transverse groove, from the middle of which a longi- 
tudinal grooved line runs downwards to join the apex of the 
epistome ; on either side this medial line, and bounded above by 
the transverse groove, is a smooth, slightly raised, subtriangular 
space; vertex minutely but not closely punctured. Thorax trans- 
verse, nearly twice as broad as long; sides narrowly margined, 
nearly straight and parallel, slightly narrowed and rounded just 
behind the anterior angles; disc impressed on either side by a 
large deep fovea, surface finely punctured. 
Genus PLATYXANTHA. 
Corpus elongatum, depressum, non metallicum, nitidum. 
Caput exsertum, subelongatum, compressum, perpendiculare ; 
antennis robustis corpore brevioribus, aut filiformibus, aut api- 
cem versus perparum incrassatis, articulis duobus ultimis ( ¢ ) 
dilatatis, szepe diftormibus ; oculis modice prominentibus, in- 
tegris; mento a basi ad apicem angustato, subconico ; liguld 
elongata, 5-angulata; pa/pis prope apicem insertis, palporum 
maxillarium articulis duobus ultimis conjunctimovatis. Z'horax 
subquadratus, disco deplanato, leviter excavato, angulis anticis 
deflexis. lytra thorace latiora, modice convexa, dorso 
leviter depressa, parallela, confuse punctata. Pedes elongati, 
modice robusti; coxis crassis, erectis, contiguis; femoribus 
non incrassatis ; i2biis posticis apice non spinosis, intus vix 
ante apicem in processum validum productis; wnguiculis 
acute appendiculatis. Prosternum obsoletum. Mesosternum 
apice subacutum, integrum. Abdominis apice exserto. 
Type Platyxantha apicalis. 
This genus is one of the most remarkable in the whole group 
of Gallerucide. The peculiar depressed form of the head and 
