CLASS VIII. ORDER V. 101 
means of the pectoral spine starting from the ab- 
dominal foramen. 
Lampyris, (glow-worm,) antenne filiform 
wing-sheaths fiexile ; thorax flat, semiorbicular, 
concealing and surrounding the head; abdomen 
with the sides plaited into papille ; female wing- 
less Gn most species.) 
CANTHARIS, antenne setaceous; thorax margi- 
ned, shorter than the head; wing-sheaths flexile ; 
abdomen plated into papill on the sides. 
Prinus, (plant-thief,) antenne filiform, with 
the three last joints largest; thorax roundish with- 
out distinct margin, receiving the head occasion- 
ally. 
Section C. Tarsus with fire joints ; palpi four s 
antennee enlarged at the end or laminated. 
Hister, antenne headed by a somewhat solid — 
tip, lowest Joint compressed and decurved ; head 
retractile ; mouth forcipated ; wing-sheaths short- 
er than the body ; fore legs toothed. 
SILPHA, (protector,) antenne thickening to- 
wards the tip; wing-sheaths margined; head 
prominent, thorax flattish, margined. 
Dermestes, (leather-chaffer,) antennze clavate, 
with perfoliate tip, the three last joints larger than 
the rest ; thorax convex, scarcely or very slightly 
margined ; head withdrawn at pleasure beneath 
the thorax. 
Byrruvus, antenne clavate, subsolid, subcom- 
pressed. 
Hypropuitus, (driver,) antenne clavate-per- 
foliate ; hind legs villose and formed for swim- 
ming, 
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