AMERICAN ITYMKNOPTERA. 63 



Abdomen usually shining, blue at the base above ; purplish towai-ils the tip 

 above; below more coppery red. Pubescence scattered: very distinct in the"^. 

 Ovipositor very long; wings with a very pale brownish yellow cloud, begin- 

 ning a little beyond the base and extending a little beyond the stigmatical 

 branch. It does not touch the anterior nor the posterior margin of the wing 

 and is more distant from the latter than from the former. 



Numerous specimens reared by Mr. Norton from the root-gull of the 

 rose produced by RhoiHtea ra<h'cum, O. S. 



A series of specimens was also communicated to me \>y Mr. Nor- 

 ton, distinguished from the former by the following characters : — 



1. Front green, usually with a golden yellnwish spot above the an- 

 tennje (but not purplish on the ncellar triangle). 2. Purplish spot on 

 the prothorax small, often almost indistinct. 3. Abdomen greenish at 

 the base (with hardly any trace of blue) ; more coppery than pur- 

 plish towards the tip. 4. Ilind coxre reddish coppery, especially their 

 hind part. 



Mr. Norton's collection contained a considerable number (more thaa 

 50) specimens of C. maipiijlca, all labelled as having been reared 

 from the gall of Rhodifes radkum. There was, besides, about an 

 equal number of specimens not labelled and therefore of unknown ori- 

 gin. All the latter specimens differed from the former in the above 

 mentioned characters. If it was not for this perfect agreement of so 

 many specimens obtained, apparently, from the same source, I would 

 not hesitate to consider them as a mere variety of C. magnlfica. Even 

 now I am doubtful about their specific distinctness. Among ."\Ir. 

 Norton's specimens a single one, agreeing with the described variety, 

 except that the basis of the abdomen is blue, was marked as having 

 been reared from the gall of Rliodifex Jiirolor. 



If C. mnij)n'fir(i infests rose galls of diflferent kinds, phytophacic va- 

 rieties may occur. 



8. C. chrysochlora, n. sp. — Bright green, abdomen near the base somewhat 

 bluish, feet yellow; ovipositor longer than the abdomen but shorter than the 

 body. — ^ about 0.10, 9 0.14 — 0.15; ovipositor about 0.12 of an inch long. Some 

 females are much smaller and have the ovipositor proportionally shorter. 



9. Ileail of a lighter green than the thorax or slightly golden green, always 

 more golden yellow or even reddish in the middle of the face. Mouth yellow- 

 ish brown. Antennre black, scapus yellow. Thorax green, often bluish, finely 

 pubescent, microscopically rugose and punctured with moderate density. Me- 

 thorax smooth, shining, with an almost imperceptible rugosity on the sides. 

 Abdomen green, bluish at the base, golden yellowish or somewhat coppery on 

 the underside towards the tip. The coxse green, j'ellow at the basis and, in 

 some specimens, on the inside; hind coxse green, moderately sculptured (not 

 more so than in C. magnijica), and, therefore, not opaque. Feet yellow, knees, 

 tips of the tibiie and tarsi paler; tip of the latter brown. Ovipositor longer 



