the Genus Raphidia. 499 
No species of Raphidia has been yet discovered in Africa, 
New Holland, Oceania, tropical Asia, or South America? (I 
think there is perhaps a species from Brazil in the Berlin 
Museum.) 
Professor Ratzeburg wrote to me in 1851 on the unusual habit 
of the larva of a Raphidia. When collecting larve in moss in a 
pine-forest near Neustadt Eberswald, (probably in August or 
September,) he found cocoons of Lophyrus pini still intact and 
without the perforations of parasites. He opened several with a 
knife and found in one of them the larva of a Raphidia. It was 
very young, and 3 lines long. It seemed as if it had fed on a 
larva of Lophyrus, of which there was nothing more than the head 
in the cocoon. This habitat was somewhat extraordinary, for 
these larvee live generally free under bark. Apparently the egg 
had been accidentally placed in the cocoon, or the larva had 
entered when newly emerged at the time the sawfly larva was 
finishing it, and was afterwards unable to escape; for we cannot 
presume that the parent Raphidia had placed the egg there inten- 
tionally. 
Fig. 1. Raphidia ophiopsis, 9, terminal segment of abdomen. 
2. R. xanthostigma, head, pterostigma and underlying cellule; and ter- 
minal segment of abdomen, ¢. 
3. R. Schneiderii, ditto ditto. 
