RAfHIDlA. 
487 
Genus VII. — Raphidia *. 
This tribe is charactefifed by two teeth, a flat head, or 
a horny fubftance, four palpi, and three {lemmata ; the 
antennae are filiform, and as long as the thorax j the an- 
terior part of which is lengthened out like the neek of a 
bird. The tail of the female is terminated by an appen- 
dice refembling a flexible crooked brittle f. 
There are only three fpecies of this genus yet difeo- 
vered ; the firfl of which is termed the ophiopfis, from 
the figure of its head and long thorax. Its form is the 
moll Angular, perhaps, of any animal in this clafs of be- 
ings. The Ihape of the head is broad before, and uarrow 
where it joins the thorax, refembling a heart ; it is flat, 
fmooth, and black like horn : the thorax is of the fame 
colour, narrow, and cylindrical : the antenna; are feta- 
ceous, and compofed of many articulations : the abdomen 
is brown, marked with white tranfverfe lines : the wings 
are radiated and diaphanous ; the exterior edges in fome 
fubje&s have each a black fpot : the anus terminates in 
a curvated fetaceous briflle, about half the length of the 
abdomen f. 
* Barbut’s Gen. Infeft. p. nj, ■(• Sjfl. Nat. p. 
j Regne Animale, p. ix». 
