of new species of Raphidia and Trichoptera, Sc. 495 
hold this species distinct from P. germanica, but to have 
absolute certainty, we must wait for more materials ; 
it would be especially desirable to ascertain whether 
the typical P. germanica occurs in those regions ; the 
season when I visited them was rather advanced. The 
difference between P. germanica and gibberosa is indeed 
very slight, but yet greater than between P. communis, 
L., and P. vulgaris, Imhoff, which, after all, are only 
two forms of one species. 
EXPLANATION OF PLATE X. 
Fics. 1—4. Raphidia rhodopica, n. sp. 1. Wings. 2. Head. 
3. Apex of the ¢ abdomen from side. 4. The same from 
behind. 
Fras. 5 & 6. Panorpa gibberosa, McLach. 5. Terminal segments 
beneath. 6. Apex of abdomen from side. 
Fias. 7 & 8. Polycentropus excisus, n. sp.7. Apex of the abdomen of 
¢ from above. 8. The same from side. 
Fic. 11. Tinodes unidentata, n. sp. 9. Apex of abdomen of the ¢ 
from above. 10. The same from side. 11. Apex of 
abdomen of the 9. 
Figs. 12 & 13. Rhyacophila obtusa, n. sp. Apex of abdomen of the 
dé. 12. From above. 13. From below. 
[Figs. 1, 2, enlarged *; Figs, 3, 4, 12; Fig. 5, 4° ; Fig. 6, 2; Figs. 
7, 9, 10; 32 = Figs, 8, 11; 12; aud 13, 40. All ques with 
camera lucida. ] 
