144 BULLETIN OF Wisconsin NATURAL history society, vol. 4, no. 4. 
cate, mandibles white with three black teeth; palpi white. Antenna? 
10-jointed, the scape and pedicel yellow, flagellum black ; scape and 
pedicel about equal, stout; second and third flagellar joints the longest, 
about equal ; first and fourth equal but shorter, fifth, sixth and seventh 
shorter, the apical one one-half longer than the penultimate. Mesono- 
tum black, shagreened, with distinct furrows on the anterior two-thirds. 
Metathorax rounded behind, areolated and rugulose. Abdomen small, 
compressed, shining back, a little shorter than the thorax. Legs, in- 
cluding coxae, pale yellow, the posterior femora and tibia? infuscated. 
Wings hyaline ; stigma rhomboidal, radial vein a little longer than the 
stigma, faintly curved at the tip. 
Described from a female specimen collected at Woods Hole, 
Mass., July, 1903. 
The present species resembles A. melaleucus Dalm., but differs 
in the color and configuration of the antennas. It could hardly be 
the female of A. americana Ashm., of which only the male has been 
described, on account of the truncate clypeus. 
Since the publications of Ashmead's [Monograph of the North 
American Proctotrypidae in 1893, four additional North American 
species have been described, and the two added here bring the total 
up to twenty-four species. As pointed out by Dalla Torre (Cat. 
Hym. V, p. 524) basal is Ashm. (nec Thomson) must be known as 
tertius D. T. I cannot adopt his change of fusciceps Ashm. to 
secundus D. T. as the name f usciceps is not identical with Ratze- 
burg's f uscipes. 
Our species, exclusive of West Indian forms, may be distin- 
guished by the following table, which is based almost entirely on 
females : 
CERAPHEONID^:. 
Ceraphron Jurine. 
NORTH AMERICAN SPECIES OF CERAPHROX. 
1. Winged 
Wingless, or with abbreviated wings 
2. Head, thorax, and abdomen black 
Body, or at least the abdomen in part pale or brownish 
21 
17 
2 
3 
