13 
oints subequal, the third being the shortest ; the club is nearly as long as the two 
preceding joints together; all joints, except Bcape and pedicel, furnished with long 
non-whorled hairs. Head and mesonotnra very delicately but distinctly punctured. 
Color : Head and thorax metallic blue-black, abdomen shiny black ; all coxa: metallic 
blue-black; all femora brown, light at tips ; all tibia: dusky, 1 i 14, 1 1 1 at tips, the bind 
tibiae darker than the others ; all tarsi pure white with dark claws. The stigma! vein 
is longer than the marginal, which is very short and thick. 
Described from 1 $ specimen ( $ unknown) bred, April 6, 1882, from 
Lecanium sp. on Finns aus trails, collected at Archer, Fla. [C. V. B. 
Coll.] 
18. (2) Encyrtus ensifer, n. sp. 
Male. — Length, 0.66 ram ; wing expanse, 1.75 nim ; greatest, breadth of fore wing, 
0.36 mm . Antenna: long and furnished with long hairs arranged in two irregular 
whorls; pedicel and flagellar joints snbequal in length and about 1.5 times as long 
as broad ; the flagellar joiuts are deeply incised dorsally, giving each a moderately 
strong, rounded, dorsal prominence; the club is somewhat longer than the two pre- 
ceding flagellar joints. Head and mesonotum very delicately and finely punctured. 
Color: Head, thorax, and abdomen shiny dark-brown, nearly black; antenna) light 
brownish-yellow; all legs dusky, light at joiuts; wing-veins dusky, marginal vein 
darkest. Stigmal vein longer than marginal, uncus consisting of four cells. [The 
penis, as shown in one specimen, is somewhat hastate and not bifid as with Eupdmus 
and other chalcids. ] 
Female. — Length and proportions much the same as those of the <£. Antennae 
somowbat compressed; scape not widened; pedicel twice as long as wide and some- 
what longer than first flagellar joiut ; all flagellar joints snbequal in length and width 
and flattened cylindrical in form ; club large, oval, compressed laterally, as long as 
three preceding flagellar joints. Sheath of ovipositor more than half the length of ab- 
domen. In every specimen examined the ovipositor was not contained in its sheath, 
but stretched out from its insertion in the first abdominal joint in a sword-like curve 
as long as the whole body. General color as with $ ; base of antenna! scape dusky, 
tip yellow, pedicel dusky throughout, flagellum light yellow-brown; legs slightlj 
dusky, except at ends of joints; ovipositor bright yellow, sheath dark brown. 
Described from 3 3,49 specimens, bred June 1 and 5, 1882, from 
Aspidiotus corticalis Riley MSS., on peach, collected at Orescent ( 
Fla., by H. G. Hubbard. [Dept. Agr. and C. V. R. Coll.] 
19. (3) Encyrtus fuscicornis, n. sp. 
Female— Length, 1.93 mm ; wing expanse, 4.6 mm ; greatest width of fore wing, 0.69 mm . 
Punctuation of mesonotum very delicate. Antenna! scape slender, not widened. 
marginal vein present, but shorter than stigmal. General color dark rfbney-yellow ; 
antenna] scape dark yellow, pedicel and first three funicle joints fuscous, last 
three fun iele joints light yellow, club black and compressed ; scutellum dusky and 
and with an irridescent tinge; tegults dusky at tips; raetanotum black; superior 
surface of abdomen black, inferior surface dusky, all legs uniformly yellow. Wings 
fuscous, somewhat clear at base, and with two transverse hyaline streaks, the 
broader of the two, just at tip of stigma, with its proximal border concave' and its 
distal border straight, and the narrower one at outer third of wing with its two 
borders parallel. 
Described from 1 9 specimen collected at Odenton, Md., Jane, L882, 
[C. V. R. Coll.] 
