250 [Septembkr 



III. Additions to some other Galls described in the paper 



ON the CYNIPID/E etc. 



To No. 5. CYNIPS QUERCUS PISUM Fitch (1. c. p. 59). 



Last winter Dr. Morris, in Baltimore, gave me au oak leaf, apparently 

 that of a white oak, with several galls on its underside, resembling very 

 much those of 6'. q. pisinn Fitch, only that the intervals between the 

 cracks of the net-work were less convex, so that the galls seemed some- 

 what smoother. On opening the box which contained them, on the 7th 

 of January, I found a wingless gall-fly walking in it. I immediately cut 

 one of the galls open and found that it contained two other similar apter- 

 ous flies, both alive. Each gall, like those of C. q. pisitm, contained two 

 cavities, separated by a partition. T am unable to decide whether these 

 gall-flies are the true producers of the gall or merely parasites. The three 

 gall-flies were females. Not knowing exactly to what genus this species 

 should be I'eferred, I call it provisionally : — 



Cynips pezomachoides n. sp. — Broion, mixed with reddish on head and thorax; legs 

 reddish; wings rudimental ; length about 0.12. 



Head brown on front and vertex and in the middle of the face, reddish around 

 the eyes: antennte 14-jointed. brown, somewhat mixed with reddish at the basis, 

 l)ut little shorter than the body: sculpture of the head hardly apparent. Thorax 

 comparatively small, reddish on the back, brown on the pleurpe and the shoulders; 

 finely jiubescent: wings reduced to the size of small scales: scutellum small, with- 

 out any a])parent basal pits: its tip somewhat pointed and recurved upwards; feet 

 reddish: basal part of the coxte brown: the middle of the femora, the external 

 side of the tibiaj and the tarsi, es2iecially their tip, more or less brownish; last 

 joint of tarsi rather large. Abdomen dark brown, shining, with a somewhat blu- 

 ish (ojjalizing) reflection. The large 2n4 (apjiarently first) segment, with a yellow- 

 ish sjjot on each side. The four following segments are short, slightly, but gradu-" 

 ally diminishing in length, the last of them bears below a short double projection, 

 with a fan-shaped pencil of yellowish hairs. The following (in fact the 7th) seg- 

 ment is longer than the preceding but, being narrower, forms an abrupt angle with 

 the hind margin of the latter; it is sj^arsely pubescent on its surface; the eighth 

 segment above is connected with the jireceding by a triangular, whitish membrane ; 

 the ovipositor is short and bears a few hairs. 



Three 9 specimens. 



To No. 6. CYNIPS QUERCUS TUBICOLA 0. S. ( 1. e. p. (iO). 



On the first of March, 1X(>2, I obtained a new brood of this insect, from 

 galls collected in ;iutumn. The coloring of the ]»ody is variable, being 

 more or less mixed with brown; some of the specimens are altogether dark 

 brown. The antennae appear to nic now 14-jointed and as the abdomen 



