COLEOPTERA, 
71 
medio lateris terminata. Elytra , basi valde elevato-marginata, 
margine sinuato-truncata, longitrorsum sat deplanata, lateribus 
impressionis subcarinato-elevatis (carina inter strias 3 et 4 sita), 
postice oblique declivia, non callosa, apice conjunctim emargi- 
nata, angulo suturali acuto, baud spiniformi. 
A. Antennae. S corpore plus dimidio longiores, articulis quatuor basa- 
libus crassis, subcompressis, obsolete canalieulatis; primo brevi, 
crassiore, subovato, secundo oculum saltern attingente, sequenti 
non dimidio breviore; alteris successive tenuioribus et cylindri- 
formibus, apice clavatis; ultimo clavse longissimse angustae primo 
breviore, subulate, acutissimo; $ thoracis basin multo super- 
antes, articulis latis, subplanis, subconicis, praesertim anticis; 
clava subelongata, acuta, articulo ultimo primo pa mm breviore. 
Oculi in fronte latiuscula parum approximate, modice convexi. 
Carina postica thoracis medio late interrupta. Elytra subparal- 
lela, sat elevata, supra lateribusque iongitudinaliter depressa. 
Pygidium medio Iongitudinaliter valde elevato-carinatum. Pro¬ 
cessus scutellaris mesosterni inter coxas intermedias anterius 
argute productus. — Tropipygus, Jekel. A t §07Tig, carina 
TTuyn, 'pygidium. 
Typus : Phloeotragus speciosus , Klug, Mus. Berol. (nec plures species 
vidi). 
Obs .—In the compressed construction of the joints of the antennse, 
especially of the females (a character peculiar to these females in the 
Ptychoderidae ), and the shape of the pygidium, divided longitudinally by a 
high broad ridge into two ovate impressed parts, this group is well 
distinguished from the preceding, of which it presents the other general 
characters, except the maculation of the elytra, these having numerous 
black maculae upon a unicolorous ground. 
B. Antennae $ corpore non dimidio longiores, articulis quatuor basa- 
libus sequentibus parum crassioribus, omnibus tenuibus, cylindri- 
cis, apice parum clavatis, lo pro ratione crasso, breviter ova to, 
2o tertio subtriplo breviore, medium thoracis paullo superante, 
reliquis subtequalibus (4o excepto paullo breviore); clava elonga- 
tissiina, angustissima, articulo ultimo (3o) primo aeque longo, 
