D2 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 
Variety wucolor n. var. 
(Fig. 31) 
2. ## Head and thorax black, except the temples, which are 
creamy; antenne black at base, the apical fourteen segments 
creamy. Wings fuligimous, with violaceous reflection; legs 
black, the anterior tibie and metatarsi narrowly creamy white 
at the base, the middle ones more broadly so, the posterior 
tibia, metatarsi, following and ultimate tarsal segments creamy 
white except at tip; base of third posterior tarsal segment and 
claws creamy; abdomen entirely red, opaque and slightly satiny 
above, polished below. The precornal basin is wide and short, 
the abdomen less bluntly terminated, and the cornus less elon- 
gate, and its neck less constricted than in taxodii; ovipositor 
extending slightly more than the length of the cornus beyond 
the tip of the latter. 
Distribution: Quebec (Joliette, July 9, type, 2). Mass. 
(Saugus, August, 1905, paratype, 2? ). 
Type in the author’s collection and paratype in the collection 
of the American Entomological Society. 
Xeris Costa 
(Figs. 4, 11, 28, 80, and 35) 
Xeris, gen. xeris, F. < eps =a kind of plant derivatives: xer + 
<1758 IJIchnewmon Linneus. Syst. nature; ed. 10; v. 1: p. 560. 
<1761 Sirex Linneus. Fauna suec; ed. 2: p. 396. 
<1762 Urocerus Geoffroy. Hist. abreg. insec. d. Paris; v. 2: p. 264. 
1895 Yeris Costa subgenus. Prosp. Im. Ital. < Atti. d. r. Acad. d. sci. 
fis. e mat. Napoli; (2nd ser.) v. 7: p. 295. 
As in Sirex the cheeks are white maculate, and the cornus 
contracted at base. The posterior lateral angles of the head 
are sharply carinate. The ovipositor is usually longer than 
the body. 
A Kry to tHE Norta AMERICAN SPECIES OF XERIS. 
FEMALES 
A. Cornus distinctly constricted at its base. 
B. Abdomen except first segment red. 
morrisonit (Cresson) Konow 
