JO 
u- /Sf By- 
490 . 
LUCANUS CERVUS. 
The Stag Beetle. 
Order Coleoptera. Fam. Lucanidae. 
Type of the Gems, Lucanus C°i us Linn. 
Lucanus Linn*, Fab., &c. 
Antennae inserted under a projec'dr^ part before the eyes and at 
the outside of the base of the mandibles, as long as the head, 
geniculated, slender, c- fitate and 10 -jointed, basal joint as long 
as the others united, cur ed and clavate, 2nd joint the smallest, 
3 following oblong, 6th rhomboidal, the remainder forming a 
small compressed club produced internally, the 7th joint being 
more wedge-shaped than the 8th and 9th, the 10th elongate 
subovate (6) ; smaller in the female and all the joints shorter. 
Labrum large and exserted, strongly united to the clypeus, sub- 
trigonate with a projecting angle on each side near the middle, 
densely ciliated towards the apex (1). 
Mandibles longer than the head in the male, strong, incurved, 
acute, with one or two large, and several small teeth on the in- 
side, between the middle and apex (as in the insect represented 
flying) : small in the female with one tooth on the inside (2) . 
Maxillae broad and short, with a strong short and hairy internal 
lobe, and a long lanceolate one densely clothed with hair, which 
meet when at rest and look like a bifid tongue. Palpi long in 
the male and 4 -jointed, basal joint short and curved, 2nd very 
long and clavate, 3rd short subovate, 4th long and rather thick, 
subelliptic-clavate (3). 
Mentum transverse, somewhat semilenticular. Lip and Palpi 
attached to the underside, the former composed of 2 elongated 
divaricating and hairy lobes, the latter attached to two scapes 
united to the base of the lip, 3 -jointed, basal and 2nd joints of 
equal length, the former slender the latter stouter, clavate and 
hairy outside, 3rd joint the longest and stoutest, ovate, clavate : 
(4 shows the underside of the mentum, &c.) 
Head broader than the thorax before, in the male, considerably smaller 
in the female : eyes lateral, small, the greater portion beneath the 
head. Thorax broader and more convex in the female : scutellum 
large trigonate. Elytra ovate, truncated at the base and not touching 
the thorax. Wings twice as long as the body when expanded. Legs 
strong : thighs, anterior with a patch of hair on the inside at the 
base : tibise all long and similar in the male with a few spines out- 
side and spurred at the apex ; shorter and stouter in the female, the 
spines stronger, the anterior pair compressed and more dilated exter- 
nally and furnished with 4 or 5 strong teeth : tarsi long clavate and 
5 -jointed, 4 basal joints short obovate, 5th long : claws long, curved 
and acute with a furcate spiny bristle between them (5) . 
Cervus Linn.$. — inermis Mars. 2 . — Curt. Guide, Gen. 137. 1. 
Chestnut colour, thickly punctured, sides of the labrum and 
angles raised; head thorax and legs black, tarsi subcastaneous. 
In the Author s and other Cabinets. 
. 1 
