1868.] 223 
faintly as my words reflect that which I would describe, they will 
awaken in many minds kindred memories of happy days in the past. 
And if, in addition to this, they afford to any one a useful hint for 
future work, or suggest a fruitful thought, their object will have been 
attained. 
London : December, 1867. 
ON SOME BRITISH CYNIPID^. 
BY THE EEV. T. A. MARSHALL, M.A. 
(Co7itinued from page 174.) 
Genus Diastrophus, Hartig. 
Maxillary palpi 5-, labial 3-jointed, the two last joints appendicu- 
lated. Antenna) of the i^ 14-jointed, somewhat thickened towards the 
apex, the 3rd joint half as long again as the 4th ; of the $ 13-jointed, 
the 3rd joint only a quarter as long again as the 4th ; the joints from 
the 4th to the penultimate, in both sexes, decreasing gradually in 
length ; the last joint longer than the preceding, lanceolate. Body 
glabrous in D. r^Si (pubescent in D. scabiosce). Mesothorax large, ele- 
vated, gibbous, with two deep longitudinal sutures, hardly converging 
posteriorly, and a medial suture abbreviated in front ; all the sutures 
punctulate ; interstices shining, but with very minute and shallow 
punctures. Scutellum separated from the mesothorax by a transverse 
suture, rugose, pubescent, nearly hemispherical as seen from above, 
with two small basal foveola?. Metathorax rugose, perpendicular. 
Abdomen of the $ compressed, the first segment occupying one-half 
of its length, the following gradually shorter; ovipositor directed 
upwards and outwards, shorter than half the height of the abdomen ; 
in the ^ the abdomen is smaller, less compressed, and the 3rd and 
following segments are retracted within the 2nd, except the apical one, 
which projects in a short cone. Wings ample ; nervures as in Cynips ; 
areolet small, basal ; the sub-costal beyond the middle, the base of the 
radial cell, and the two complete sides of the triangular areolet, in- 
crassated. 
Diastrophus, Hart., in Germ. Zeits., 2, 194; 4, 410; Tasch. 
Hym., 123. 
Diastrophus rubi, Hart. 
Black ; parts of the mouth, antennsB at the base, squamulje, and 
legs, ferruginous ; extreme base of the coxa) and apex of the tarsi, black. 
