94 SILPHIDA. 
apicalibus elytrorum lete flavo-rufis; capite modico, minute et indistincte punctato, epistomate nigro- 
piceo; oculis magnis, valde prominentibus ; pronoto sat parvo, haud latiore quam longo, prope medium 
latissimo, lateribus una cum basi rotundatis et fortiter depressis, linea mediali atque impressionibus 
omnibus valde profundis, ad latera atque basin modice punctato, disco nitidissimo, fere glabro; elytris quam 
pronotum multum latioribus et duplo longioribus, ad extrema latissimis, sat profunde et distincte punctatis, 
interstitiis glabris, nitidis, sutura parum elevata, macula, sive fascia abbreviata, ad basin antice producta, 
prope humeros, atque alia rotundata ad angulum apicalem exteriorem, omnibus lete flavo-rufis, notatis, 
epipleuris latis, nigris, apicibus truncatis sinuatis; abdomine sat longo, acuminato, pilis nigris vestito, sat 
profunde punctato; pedibus sat longis, nigris; antennis nigris, clavis rufis articulo basali nigro. Long. 
ad extr. elytrorum 51-7 lin.=11-14 millim. Lat. elytrorum 23-3 lin.=5—6 millim. 
Body rather narrow, very shining, with all the usual impressions very deeply marked ; deep black, with apical 
and subhumeral bright orange spots on the elytra. Head moderate, minutely and indistinctly punctured, 
the epistoma pitchy-black ; eyes large and very prominent; antenne black, the club bright red with the 
basal joint black. Thoraw rather small, not broader than long, widest at the middle, the sides and base 
much depressed and continuously rounded, the medial line and all the impressions very deep; sides and 
base moderately punctured, the disc nearly smooth and very shining. Scutellum large, obtuse, rather 
deeply punctured. Zlytra twice longer, and much broader than the thorax, widest at the extremities, 
rather deeply and distinctly punctured, with the interstices smooth and shining, the suture rather elevated ; 
with a subhumeral bright orange spot or abbreviated fascia, produced in a narrow line towards the shoulder, 
and a rounded bright orange spot near the exterior apical angle, not extending to the apex; epipleural 
fold broad and entirely black; apex truncate and rather deeply bisinuated. Abdomen rather long and 
pointed, clothed with black hair, rather deeply punctured, with a deep impression on each side of the base 
of the penultimate segment. Legs rather long, black, with the intermediate and posterior tibic faintly 
incurved. Underparts black and shining. 
Hab. Guatemata, San Gerdénimo, Cerro Zunil (Champion). 
This very distinct species may be known by its rounded thorax and smoother surface, 
and by the small size of the orange-coloured markings of the elytra, which are mere 
spots and not fascie as in most of the other members of the genus. In shape JV. qguadri- 
maculatus resembles the European WV. mortuorwm, but differs from that species in the 
characters already mentioned, and also in the red club of its antenne, and in the black 
epipleural folds of its elytra. 
SILPHA. 
Silpha, Linnzeus, Syst. Nat. ii. p. 569 (1758). 
Body oblong or elongate; often much depressed. Head small and often elongate. Thoraa generally large and 
broad. lytra usually more or less truncate, often deeply sinuated at the extremities. Abdomen often 
elongate and much exposed. Antenne 11-jointed, often long and slender, with the club but faintly 
incrassated. Palpi short; apical joint in all almost cylindrical, with the apex obtuse. Lingua often very 
large and broad, somewhat fan-shaped, hollowed in front and largely dilated at the extremities. Maaille 
large, bilobed; exterior lobe variable in length, ciliated at the apex; inner lobe large, strongly hooked at 
the apex, and densely ciliated in front. Prosternum small; episterna small and indistinct ; epimera either 
wanting, or (as they appear to be in S. analis) very large, subtriangular, partly enclosing the coxal cavities. 
Mesosternum rather short; episterna large; epimera long, humeral, reaching to the coxal cavities. Meta- 
sternum moderate, not extending to the sides of the body ; episterna large and broad, reaching to the 
coxal cavities; epimera long and narrow, covered by the epipleural folds of the elytra. Venter composed 
of six segments. Legs generally long; tarsi 5-jointed, often dilated in the males. Cowe: anterior large 
and very prominent; intermediate broad, rather flattened, more or less prominent; posterior very large 
and long. 
This widely-distributed genus is represented in Central America by four species. 
