84, SILPHID2. 
impunetate. Elytra longer and broader than the head and thorax, widest beyond the middle, distinctly 
and irregularly punctured, with the interstices smooth and shining, without a sutural stria; subhumeral 
angles obtuse; sides much rounded and broadly margined. Legs long and robust, rufo-piceous : inter- 
mediate with the femora armed at the apex on the inner side with a strong and very sharp incurved hook ; 
the tibie slightly incurved and broadly dilated towards the apex, spinose on the outer side, and produced 
at the apex into a very large, broad, and very sharp tooth, the apex itself obliquely truncate; posterior 
with the femora armed at the apex on the inner side with a long, strong, faintly incurved, and 
very sharp hook; tibi incurved at the base, slightly spinose on the outer side, and furnished on the 
inner side of the apex with a single short spur; tarsi short, robust, and compressed. Underparts 
ferruginous. 
Hab. Mexico, Puebla (Sallé); Panama, Volcan de Chiriqui (Champion). 
This remarkable insect will be known by its almost orbicular form, very shining 
surface, broadly dilated intermediate tibia, and hamate femora of the posterior and 
intermediate legs. From ©. bihamatus it is distinguished by its larger size, more 
rounded form, very distinctly punctured elytra, and paler colour, and also by the shape 
of the large hook on the posterior femora, which in this species is only faintly incurved 
towards its extremity. 
2. Creagrophorus bihamatus, sp. n. (Tab. III. fige. 13,69 .) 
Obtuse ovatus, rufo-piceus, superficie inwquali, nitida ; capite magno, lato, nec distincte punctato, neque 
alutaceo, sed insequali, ore atque clypeo rufo-testaceis; oculis magnis, sat prominentibus; pronoto brevi, 
parvo, quam caput latiore, sed parum breviore, ad basin latissimo, nec distincte punctato, neque alutaceo, 
sed inequali, marginibus omnibus rufescentibus, lateribus valde rotundatis et marginatis, margine basali sat 
rotundata et leviter sinuata angulis rotundatis ; elytris semiovatis, postice parum attenuatis, quam caput 
atque pronotum longioribus haud latioribus, prope media latissimis, vix perspicue punctatis, fere glabris, 
nitidis, stria suturali sat indistincta ab apicibus usque ad media impressis, lateribus rotundatis et margi- 
natis ; pedibus modicis, rufo-piceis, anteriorum tibiis ad apices parum dilatatis, tenuiter spinosis, calcari brevi 
apicali utrinque armatis ; intermediorum femoribus ad apices plus minusve interne hamatis; tibiis externe 
spinosis, ad apices validissime dilatatis, calcari singulo apicali armatis, externe in dentem validum, latum, 
aciculatum, productis, posteriorum femoribus in maribus hamo longo, valido, fortiter incurvato, ad apices, 
atque hamo minore vel dente acuto, ante media intus armatis, in feminis hamis hisce omnibus multo dimi- 
nutis ; tibiis modicis, vix curvatis, externe spinosis, et calcari parvo intus ad apices armatis; tarsis brevibus, 
robustis et compressis; antennis sat brevibus, rufo-testaceis, clavis sat magnis, obscurioribus. Long. 
corp. as lin. = 1-50-1'75 millim. 
Body obtusely ovate, rufo-piceous, shining, with the surface uneven. Head large and broad, uneven but not 
distinctly punctate or alutaceous; clypeus and mouth rufo-testaceous ; eyes large and rather prominent ; 
antenne rather short, rufo-testaceous, with the club rather large and dusky. Thorax short and small, 
broader but rather shorter than the head, widest at the base, not distinctly punctate or alutaceous, but 
uneven, all the margins rufescent ; sides much rounded and margined ; basal margin slightly rounded and 
faintly sinuate, with the angles rounded. Scutellum rather large, triangular, impunctate. Elytra semi- 
ovate, slightly narrowed towards the apex, longer but not broader than the head and thorax, widest near 
the middle, scarcely perceptibly punctured, almost smooth and shining, with an indistinct sutural stria 
extending from the apex to the middle; sides rounded and margined ; apex slightly acuminate. Legs 
moderate, rufo-piceous ; anterior with the tibie slightly dilated towards the apex ; finely spinose on the 
outside, and furnished with a short spur on each side at the apex ; ¢ntermediate with the femora more or 
less hooked on the inner side of the apex ; tibie very broadly dilated towards the apex, spinose on the outside 
and produced at the apex into a large and broad tooth aciculated, or subulated, at its extremity, with a 
short spur on the inner side ; posterior with the femora armed on the inner side of the apex in the male with 
a long, strongly incurved, and very sharp hook, and towards the middle with a shorter hook or sharp tooth, 
