21 
mens were incomplete in the an tenn and probably lacked the club, as 
the ¢ of B. peculiaris, resembling the varying individuals in all other 
respects, have the club described by Foerster. 
Genus PSILOPHRYS Mayr. 
Female.—The very thin and very long antenne are given off from the neighborhood 
of the mouth; the long thin scape reaches nearly to the ocelli; the pedicel is usually 
more than double as long as thick; the long funicle is extremely thin and filiform 
and its segments are so closely joined that when the funicle is straight the points of 
division are very indistinct; the first joints are longer than the last; the first is about 
twice as long as the pedicel, and the sixth, which is the shortest, is still five times as 
long as thick; the club is slightly thicker than the funicle, and is longer than the 
sixth funicle joint, but is shorter than the fifth and sixth together; at the end it is 
obliquely truncate. The head is not thick (antero-posteriorly), but is long, for the 
cheeks are somewhat longer than the eyes; the head is not so broad as the thorax. 
The facial groove is narrow but long and extends up between the eyes as far as their 
middle; the small keel-shaped facial prominence extends as a delicate carina to the 
end of the facial groove. The front and vertex form a strong rounded angle and are 
quite broad. The ocelli form an obtuse-angled triangle, the posterior ocelli lying near 
the eyes and the sharply-cut occipital border. The thorax is strongly arched trans- 
versely and from above appears almost barrel-shaped. The pronotum, mesonotum, 
scapule, and scutellum are closely united; the mesonotum is large and as long as the 
strong transversely-arched triangular seutellum; the points of the scapule meet. 
The abdominal segments are subequal in length, and the ovipositor protrudes slightly. 
The fore wings are not ciliate (in this respect differing from all other Encyrtine ex 
cept Bothriothorax schlechtendali), and when folded reach only a very little beyond the 
tip of the ovipositor; the stigmal vein is quite long and arises from the juncture of 
the submarginal with the costa; the marginal is therefore not developed and the post- 
marginal is short. : 
Male.—Very like the female, with a smaller head, very delicately ciliate fore wings, 
and much thicker, shorter, and differently formed antenne. The pedicel is only slightly 
longer than thick; the funicle is thick and clothed with short hairs (although longer 
than with the female); the first funicle joint is also the longest and the sixth the 
shortest, but this last is only double as long as thick (the funicle joints usually shrink 
so much after death that they appear compressed); the club is longer than the first 
funicle joint, and as thick at its base, gradually more slender, with a rounded sum- 
mit. The first abdomiual segment is longer than any of the others. 
34. (1) Psilophrys hyalinipennis, n. sp. 
Male.—Length, 1.51™ ; expanse of wings, 3.02"; greatest width of fore wing, 
0.67™™, Resembles much Ps. longicornis (Walk.), of Europe, but differs markedly in 
the clear transparent wings. Color, metallic bluish-green, abdomen shiny black, 
antennz brown; all cox metallic, all femora and tibe dark brown, with reddish- 
yellow knees ; tarsi, reddish-yellow, with black terminal joints: wing veins strong, 
dark brown in color. 
Described from 1 ¢ specimen. Habitat, Missouri. [C. V. R. Coll.| 
