RAnilDIAs 487 



Genus VII. — Raphldia ' 



X HIS tribe is chara6lenfed by two teeth, a flat head, of 

 a horny fubftance, t'.mr palpi, and three Iteinmata ; the 

 antennce are filiform, and as long as the thorax ; the an- 

 terior part of which is lengthened out lik.e the neck, of a 

 bird. The tail of the female is terminated by an appen- 

 dice refembling a flexible crooked bnflle t. 



There are only three fpecies of this genus yet difeo- 

 vered ; the firfl of which is termed the ophioplis, irora 

 the figure of its head and long thorax. Its form is the 

 xnofl: Angular, perhaps, of any animal in this clafs of be- 

 ings. The fliape of the head is broad before, and narrow 

 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 antennae 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 

 fubjefts have each a black fpot : the anus terminates in 

 a curvated fetaceous briflle, about half the lenjjth of the 

 abdomen J. 



* Earbut's Gen. Infedl:. p. %%•], f Syft.Nat, p. 916* 



f Regne Animale, p. 112. 



