1867.] 125 
A. Malpifjhii, Hart., in Gferm. Zeits., 2, p. 192. 
? Uiplolepis lenticularis, Oliv., Enc. meth. 
? Gynips longipennis, Fab., Piez , 148, No. 21. 
N. Malpighii, Eatz., Forst., Ill, pi. 5, fig. 3 (gall). 
This insect, wliatever be its name, is the inhabitant of the well- 
known oak-spangle. See Eeaum., Ins., Ill, pi. 42, fig. 8 — 10 ; Mal- 
pighi, Opera omnia, pi. 7, fig. 15; Westwood in the "Arboretum 
Britanuicum," p. 1827, and Smith in Tr. Eut. Soc. 1839, Vol. 2, Proc. 
p. 43. Last spring I made a large collection of the galls in the month 
of March, and after keeping them three or four days, had the gratifi- 
cation of obtaining from them some hundreds of the flies, but all ? . 
They are parasitically infested by a species of Eurytoma. It is not 
easy to distinguish the present insect from Spathegaster haccarum, Lin., 
which I also bred last spring in quantities, from the currant gall of the 
oak, (^ $ . The latter has the maxillary palpi 5-articulate, and the 
labial 4-articulate, the petiole longer, and the antenna? of the $ 14- 
articulate ; the legs are also nearly free from black markings. 
Neuroterus fumipennis, Hart. 
Black ; the two basal joints of the antennae, the legs, and the basal 
third of the abdomen, testaceous. Sutures of the parapsides faintly 
marked. Wings smaller than in the preceding ; the radial cell shorter ; 
infumated, darker towards the tips ; the base of the radial cell, the 
outer side of the areolet, and the basal transverse vein more suff"used 
with brown. The brown dashes on the outer side of the basal transverse 
vein are united into one. The abdomen is less compressed. The tips 
of the tarsi are fuscous. ? . Long. 1 ; alar. exp. 3 lin. 
N.fumipennis, Hart., in Germ. Zeits., 3, p. 339. 
Common in England upon oak trees, but its gall does not appear 
to have been remarked. It is named in the older collections longipennis, 
Eab., upon what authority I know not. The Fabrician description 
is " Atra, abdomine compresso ; alis elongatis, alhis, punctis 2 nigris ;" 
which is certainly more applicable to N. Malpighii. Fabricius could 
not have failed to indicate the more salient characters of the insect, 
such as the blackish wings, and the testaceous base of the abdomen. 
Sect. II. Sutures of the mesonotum invisible. 
Neurotefus politus, Hart. 
Minute, black ; mouth, base of the antennae, and the legs, dull 
testaceous, coxie black at the base, Mesonotum smooth and shining. 
