INSECTA. 
370 
We will commence with those in which the head is not abruptly 
narrowed at its posterior extremity, and is not attached to the tho- 
rax by a sort of suddenly formed neck, or by a species of patella. 
The thorax is always in the form of a truncated heart. The exterior 
palpi are never terminated by a much larger and securiform joint. 
The two anterior tarsi of the males are not dilated, or if so, but very 
slightly ; the penultimate joint of these and the other tarsi is never 
deeply bilobate. 
The three following subgenera have a common negative character : 
that of being destitute of wings, 
Anthia, Web. Fab. 
An oval, horny ligula, advancing between the palpi nearly to their 
extremity. 
The labrum frequently large and dentated or angular. 
The exterior palpi filiform; the last joint almost cylindrical or 
forming a reversed and elongated cone. No tooth in^the emargina- 
tion of the mentum. The abdomen oval, and most frequently con- 
vex ; elytra almost entire, or but slightly truncated. 
These Insects, as Avell as those of the ensuing subgenus, have a 
black body spotted with white, a colour formed by down ; they inha- 
bit the deserts and similar localities of Africa* and some parts of 
Asia. According to the late M, Leschenault de Latour, the Anthiae, 
when irritated; discharge a caustic fluid from the anus. The species 
generally are large, and in the males of some the thorax is more or 
less dilated posteriorly and terminates by two lobes f. 
Graphipterus, Lat. — Anthia, Fab. 
The Graphipteri were formerly confounded Avith the Anthise, but 
differ from them in their ligula, Avhich, the middle part excepted, is 
entirely membranous; and in their compressed antennae, Avhose third 
joint is much longer than the others. Besides this, their abdomen is 
always flattened and orbicular, and one of the tAvo spines terminating 
the posterior tibiae is ahvays laminiform and much longer than the 
other. 
The species of this subgenus are exclusively proper to Africa, 
and smaller than the preceding 
Aptinus, Bon. — Brachinus, Web. Fab. 
The last joint of the exterior palpi someAvhat thicker, that of the 
labials particularly ; a tooth in the middle of the emargination of the 
* Although several Insects of the north of Africa have been discovered in the 
south of Spain and Italy, not a solitary species of Anthia or Graphipterus has ever 
been found there. 
-f- See Hist. Nat. des Coleop. d’Eur., fascic. II ; the Species des Coleop., Dej., I ; 
the excellent Synonymia Insectorum of Schoenherr ; and the zoological portion of 
the Voy. de Caillaud, where I have described and figured the Insects collected by 
him in Africa. 
I See Hist. Nat. des Coleop. d’Eur., fascic. II, and the Species des Coleop., I, 
Dej. The Anthia exclamationis, Fab., is a Graphipterus, figured Diet. d’Hist. Nat. 
X, E, 2, 7, under the name of trilinee. 
