526 U. S. NATIONAL MUSEUM BULLETIN 2 1 6 part 3 



frontal orbit, face, cheek, mouth, and moderately extensive thoracic 

 markings whitish, as in the male of the subspecies hurra. 



Specimens: 69, from Sweden, England, and Germany, all macrop- 

 terous. 



Summer form: Black. Anterior orbit usually with small discon- 

 nected whitish markings; palpi whitish; tegula, subtegular ridge, hind 

 corner of pronotum, and usually the collar, white; legs colored about 

 as in overwintering form, but usually a little darker and more exten- 

 sively infuscate; first abdominal segment black, its apex sometimes 

 tinged with ferruginous; second tergite entirely fuscous or its apical 

 part and often more or less of sides ferruginous; third tergite entirely 

 ferruginous or partly fuscous, sometimes entirely fuscous; fourth and 

 following tergites fuscous, or sometimes partly ferruginous. 



Specimens: 149, from Sweden, England, Germany, and northern 

 Italy, tliree of them dwarf and brachypterous, the rest macropterous. 



This subspecies is widespread in Europe. It parasitizes several 

 species of Vespula and is reported also as a parasite of Osmia. Ac- 

 cording to literature, its biology is similar to that of the American 

 subspecies. Morley (1900, Ent. Monthly Mag., vol. 36, pp. 117- 

 124) has given a good summary of the British accounts of its biology. 

 See also the paper by Rei chert cited under the specific discussion. 



lb. Sphecophaga vesparum burra (Cresson), new status 



Euceros burrus Cresson, 1869, Canadian Ent., vol. 1, p. 104; 9 . Type: 9 , 

 Ottawa, Ont. (Philadelphia). This name was based on the overwintering 

 form. 



Sphecophagus (!) ? praedator Zabriskie, 1894, Journ. New York Ent. Soc, vol. 2, 

 p. 84; cf, 9. Types: cf, 39, New Baltimore, N.Y. (lost). In the New 

 York museum are some cocoons and a mature male pupa from the original 

 material but the four specimens on which the description was based cannot 

 be located. This name was based on the overwintering form. 



Biology: Couper, 1870, Canadian Ent., vol. 2, pp. 52-53. — Zabriskie, 1894, 

 Journ. New York Ent. Soc, vol. 2, pp. 83-85. — Cushman, 1933, Proc. Ent. 

 Soc. Washington, vol. 35, pp. 10-11. — Schmieder, 1939, Ent. News, vol. 

 50, pp. 92-97.— Leech, 1954, Pan-Pacific Ent., vol. 30, p. 80. 



Coxae and trochanters usually fulvous or fulvoferruginous, the 

 coxae often infuscate basally and sometimes all of the coxae and 

 trochanters moderately infuscate. 



Overwintering form, male: Head fuscous, the face, broad frontal 

 and vertical orbit, lower 0.6 ± of temple, and mouth parts, pale yellow; 

 antenna dark brown, the front of its scape pale yellow; thorax fulvo- 

 ferruginous, with areas in upper part of mesopleurum, around wing 

 bases, attachments of abdomen and hind coxae and some narrow 

 sutural markings, fuscous, the propleurum, pronotum except in the 

 trough, mesosternum, lower and front part of mesopleurum, tegula, 

 subtegular area, and often the center of scutellum, pale 3'ellow; legs 



