COLEOPTERA. 79 
that precede it. The head is a little wider than the thorax. These 
characters distinguish it from Zonitis. The antenne of the males 
are sometimes irregular and even semipectinated. 
C. vesicatorius; Meloe vesicatorius, L,; Oliv., Col, IIT. 46, I, 
i,a, b, c. (The Spanish Fly.) From six to ten lines in length. 
of a glossy-golden-green, with simple, regular, black antenne. 
This insect, well known for its medical uses, has furnished M. 
Victor Audouin, with the subject of an excellent Memoir, pub- 
lished in the Ann. des Sc. Nat. IX. p. 31. pl. xlii and xliii; 
he there minutely describes its anatomy, the external sexual dif- 
ferences which had hitherto remained unnoticed, its mode of 
copulation, &c. Excellent figures, drawn with the greatest care 
by Guerin, give additional value to these interesting facts. 
This Insect appears in France, near the time of the summer 
solstice, and is more particularly found about the Ash and Lilac, 
on the leaves of which it feeds; it diffuses a highly penetrating 
odour. The larve lives in the ground and gnaws the roots of 
plants. In the United States of America, the species called by 
Fabricius the vittata, and which abounds on the potatoe plants, 
is applied to the same uses as the one of which we are speaking *, 
Zonitis, Fab.—Apauus, Oliv. 
The antennz, those of the males particularly, more slender than 
in Cantharis, and the length of their second joint at least equal to 
half that of the third. The maxillary palpi are filiform, and the last 
joint is almost cylindrical. The head is somewhat prolonged ante- 
riorly, and is the width of the thorax. These Insects are found on 
flowers f. 
The males of the two following subgenera present a truly insu- 
lated character: the terminal lobe of their maxillz is extended into 
a sort of thread, more or less long, silky and curved. Such is 
Nemoenatuus, Lat.—Zonitis, Fab., 
Where the antenne are filiform, with the second joint shorter than 
the fourth; the thorax is almost square, or rounded laterally f. 
Gwatuium, Kirb., 
Where the antennz are somewhat larger towards the extremity, 
with their second joint almost as long as the fourth. The thorax is 
bell-shaped, and narrowed anteriorly §. 
Finally, the last subgenus of this tribe, or 
* See Fabricius, Olivier, Schcenherr; the Entomog. Imp. Russ., of Fischer ; the 
Spec. Entom. Bras. of Kliig, and the Insect. Spec. Nov., Germar. 
+ The Zonitis of Fabricius, those species excepted which belong to the following 
subgenus. See also Encyc. Méthod., article Apale. 
+ The Zonitis chrysomelina, rostrata, and vittata, Fab. See Lat., Gener. Crust. et 
Insect., U1, p. 222. 
§ Gnathium Francilloni, Kirb., Lin. Trans. XII, xxii, 6. This subgenus, from the 
form of the antenne and that of the thorax, should come directly after that of Can- 
tharis. The tribe should be terminated by Sitaris and Zonitis. 
