6 MONOGRAPH OF THE 
linear series ; and shall, under each group, notice the relations it 
appears to bear to the rest. 
CERAPTERUS, Swederus. 
Corpus depressum abdomine elytrisque latis. Caput subtriangulare postice collo brevi cylin- 
drico instructum : oculi globosi valde prominuli: antennz capitis fronte inserte pubescentes 
perfoliate 10-articulate, capite cum thorace paullo longiores, articulo 1mo compresso 
sublunari, reliquis latis depressis, 2—9 transversis, ultimo fere quartam partem antenne 
constituente apice rotundato: labrum mandibule et maxille parve. Palpi elongati 
inequales ; labiales crassiores. Elytra ad angulos posticos externos tuberculo instructa. 
Tarsi breves 5-articulati in excavatione apicali tibiarum szpius recepti, articulis basalibus 
crassioribus subtus setosis. 
In the number of the joints in the antenne this genus stands 
alone in the family ; several of its species, however, exhibit rela- 
tions with some of the genera; thus Cerapterus latipes bears a 
strong resemblance to Platyrhopalus Mellii; the Australian species 
in their simple-formed prothorax and general form resemble the 
species of Paussi in which the prothorax is not bipartite, whilst 
C. Westermanni in its slender legs and dilated prothorax resembles 
Lebioderus. 
Mr. MacLeay, in 1838, in his Paper on this genus, (introduced 
into Dr. Smith’s Illustrations of the Zoology of South Africa, in 
consequence of a new species of the genus having been brought from 
thence by that naturalist) published figures of four species.. I am 
now enabled by the kindness of several correspondents to describe 
as Many as nine distinct species, which may be divided into the 
following subgenera. 
Sus-Genus I—CERAPTERUS (stricte sic dictus). 
Prothorax latissimus, lateribus rotundatis, antenne latissime lateribus serratis articulo ultimo 
maximo. Elytra abdomen tegentia. Tibie latissime (in C. 4-maculato bicalcarate, in 
reliquis ecalcarate), Scutellum mediocre. 
Species I1.—Cerapterus latipes. (Plate 49, fig. 1.) C. piceus; elytris macula apicali fla- 
vescente subrotunda antice quadridentata postice lobata ; antennis rufis articulo ultimo in 
tuberculo ad basin elevato.” MacL. [Palpis labialibus sec. figuras Swederi articulo 
ultimo paullo securiformi]. Long. corp. sec. fig. Swed. lin. 6. 
Habitat in Oriente. 
Syn.—Swederus, Kongl. Vetensk Acad. &c. t. 9, 1788, p. 203, pl. 6, f. 1. Westw. 
Linn. Trans. 16, p. 669, and 18, p. 582. MacLeay Ann. Soc. Afr. pl. 4, fig. inf. sinistr. 
The above description and the accompanying figure are taken 
from Mr. MacLeay’s memoir above referred to, as that gentleman 
now possesses the original and still unique specimen described by 
Swederus, who states that it came from Honduras ; but Donovan, 
on the authority of General Davies, the original possessor of the 
insect, stated it to be a native of Bengal. Mr. MacLeay further 
adds, ‘‘ Thorax capite duplo latior medio posticeque utrinque foveo- 
