of new species of Raphidia and Trichoptera, Sc. 498 
black. Pterostizma of all four wings distinct greenish brown. 
Neuration distinct, dark brown; radius not furcated before the 
apex ; second apical fork extending only very little further in- 
wardly than No. 1 ; costal margin of the anterior wings furnished, 
at its base only, with plumose hairs amongst the simple. Fringes 
dark grey. 
In the ¢ the 9th abdominal segment on the dorsal and ventral 
side distinctly developed, though its ventral part is considerably 
narrower. The external lobes are very large, reaching to the 
middle of the inferior appendages, viewed from side rhomboid, 
with the lower part bent round outwardly. If viewed from above, 
the external margin appears to form a raised arcuate edge dis- 
appearing at the apex and forming an axis round which the lower 
part of the lobe is bent outwardly. Both lobes are united at the 
base, but separated for more than the apical half of their length ; 
they are sparingly furnished with stiff hairs. First joint of the 
inferior appendages oblong, convex on its lower edge; second 
joint much shorter, very obliquely truncate at the apex, so that 
the upper edge is much shorter than the lower, which is concave 
at the base, convex at the considerably produced apex ; the apical 
edge straight. Lower penis-cover not exserted, large, boat-shaped, 
fuscous, and slightly excised at the apex. Exp. 16 mm., length 
5°5 mm. 
@ unknown. 
Three ¢ at a brook in Dragalevci flowing from the 
Vitosa Mountains near Sophia, 22nd July. 
When living this species has the appearance of a pale 
Silo or Inthax, and was found sitting on the underside 
of leaves of plants on the bank. Though its radius 
is not divided at the apex, we must put it into the Section 
C. of the genus Rhyacophila (McLach., Rev. and Syn., 
p- 158), from its short and broad wings and the form of 
the anal appendices. Though the external lobes appear 
very similar to those of Rh. eatont, McLach., the lower 
penis-cover and the uniform colour of the wings show 
its relation to the group of Rh. levis, Pict., from which 
it differs especially in the form of the external lobes and 
by the presence of the plumose hairs on the costal 
margin of the anterior wings. 
Panorpa gibberosa, McLach. 
This highly interesting species was described by Mr. 
McLachlan in his Synopsis of the species of Panorpa 
occurring in Europe and the adjoining countries (Trans. 
