THE TRIBE CHALCIDINI — BURKS 339 



Distribution. — Arizona, British Columbia, California, Colorado, 

 Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, 

 Illinois, Iowa, Kansas, Maine, Maryland, Massachusetts, Minnesota, 

 Montana, New Hampshire, New Jersey, New Mexico, New York, 

 Ohio, Oklahoma, Ontario, Oregon, Quebec, Saskatchewan, South Da- 

 kota, Tennessee, Texas, Utah, Virginia, Washington, Wisconsin. 



SPILOCHALCIS ALBIFRONS (Walsh) 



Chalcds albifi-ons Walsh, Trans. Illinois State Agr. Soc, vol. 4, p. 369, 1861. — 

 Cbesson, Proc. Ent. Soc. Philadelphia, vol. 1, p. 229, 1862.— Walsh, Trans. 

 Illinois State Agr. Soc, vol. 5, p. 483, 1865.— Rhxy, 2d annual report on the 

 noxious, beneficial and other insects of the State of Missouri, p. 52, 1870. — 

 Walkeb, Notes on Chalcidiae, p. 46, 1871. — Riley, 8th annual report on the 

 noxious, beneficial and other insects of the State of Missouri, p. 54, 1876.— 

 Thomas, 10th report of the State entomologist of Illinois, p. 40, 1881. — 

 Packard, Guide to the study of insects . . ., p. 203, 1889. 



Smicra aliifrcms (Walsh) Cbesson, Ti-aus. Amer. Ent. Soc, vol. 4, pp. 35, 39, 

 1872; Synopsis of the families and genera of Hymenoptera of America 

 north of Mexico, p. 233, 1887. 



Spilochalcis alUfrons (Walsh) Howaed, U. S. Dept. Agr. Bur. Ent. Bull. 5, p. 

 7, 1885 ; U. S. Dept. Agr. Bur. Ent. Techn. Ser. Bull. 5, p. 34, 1897.— Schmiede- 

 KNECHT, Genera insectorum, fasc. 97, p. 38, 1909. — Smith, Ann. Rep. New Jer- 

 sey State Mus. for 1909, p. 649, 1910.— Giratjlt, Proc. U.. S. Nat. Mus., vol. 

 58, p. 192, 1920.— DuNNMAN, Journ. Agr. Res., vol. 34, p. 154, 1927.— 

 Leonakd, Cornell Univ. Agr. Exp. Stat. Mem. 101, p. 976, 1928.— Wilson, 

 Florida Ent., vol. 16, p. 39, 1932 ; vol. 17, p. 3, 1933 ; Florida Agr. Exp. Stat. 

 Techn. Bull. 271, p. 16, 1935. 



Spilochalcis torvina ancylae Gikault, Proc. U. S. Nat. Mus., vol. 58, p. 192, 1920. 



The male of this species, while almost identical with that of Spilo- 

 chalcis side (Walker), is recognized most easily by the angular 

 yellow mark located just dorsad of the clypeus. The female is con- 

 siderably darker and averages larger than the female of side. In 

 some cases it is impossible to distinguish the females of these two 

 species. 



Description. — Male: 2.5-3.5 mm. Identical with the male of S. 

 side, redescribed on p. 337, except in the following particulars : Apex 

 of scape reaching, but not exceeding, level of vertex ; pedicel one and 

 one-half to one and one-quarter times as long as segment 4, ring 

 segment one-third as long as segment 4 ; diameter of posterior ocellus 

 one-half as great as width of interocellar space. Prepectus often en- 

 tirely concealed, when visible, extremely narrow and not quite touch- 

 ing tegula; outer ventral margin of metafemur with 11 to 16 minute 

 teeth. Petiole shagreened, three to four times as long as wide, lateral 

 carinae almost always well developed, a sparse row of long setae 

 usually present along each dorsolateral angle of petiole ; gaster usu- 

 ally equal in length to metafemur, occasionally slightly shorter ; penis 

 valve similar in form to that of S. side (fig. 14, 1) , but proportionately 

 lonsfer and slenderer. 



