35 
Coccophagus cognatus Howard. 
Coccophagus cognatus Howard. Report Entomologist, Ann. Rep. U. S. Dept. 
Agric., 1880, p. 359. 
Female.—Length, 1.2nm.; wing expanse, 2.1 mm.; greatest width of 
fore-wing, 0.34 mm. Antenne not quite so long as thorax. General 
color dark brown, nearly black; last half of mesoscutellum and tip of 
metascutellum orange-yellow; anterior coxie, femora, and tibi, fus- 
cous; tarsi whitish, last two joints slightly dusky; middle femora and 
coxe nearly black, tibize somewhat dusky, tarsi as with fore tarsi; 
hind coxie, femora, and tibize dark, tibize as with others. 
Male.—Length of body, 0.6mm.; expanse of wings, 1.4 mm.; greatest 
breadth of fore-wing, 0.25 . m. Antenne nearly as long as head and 
thorax together. General color brown; scutellum and metascutellum 
just tipped with light yellow-brown. In all other respects resembles 
the female. 
Described from many specimens. Parasitic upon Lecanium hesperi- 
dum, lvistrict of Columbia (Department of Agriculture); Lecanium on 
plum, Bramley, Ontario (J. Fletcher and T.D. A. Cockerell); Lecanium 
persice, Lake Shore and Mapleville, Md. (Department of Agriculture). 
Coccophagus immaculatus Howard. 
Coccophagus immaculatus Howard. Report Entomologist, Annual Reps Unies: 
Dept. Agric., 1880, p. 358. 
Female.—Length, 1.2 mm.; wing expanse 2.35 mm.; greatest width 
of fore-wings, 0.47 mm. Antenne slightly longer than thorax. Meso- 
scutum and mesoscutellum sparsely furnished with round punctures, 
of which there is a regular row around hind border of mesoscutum. 
Between the punctures is a faint shagreening. All hairs blackish, 
metanotum honey-yellow. General color black; eyes reddish ier. 
with a yellowish border above; ocelli dark red; Se light yellowish 
brown, with dark brown Fann are carine on each joint except scape 
and pedicel; mesoscutellum shining black, slightly metallic in some 
lights; wing veins dark brown; front femora black; middle and hind 
femora black, except at base, which is whitish; front tibie dusky, light 
at knees; middle and hind tibie light all: all tarsi whitish, last 
joint fuscous; front coxie dark brown, middle and hind coxe and all 
trochanters yellowish; ovipositor yellow, sheaths brown. 
Male.—Length, 0.9 mm.; wing expanse, 2.3 mm.; greatest width of 
forewing, 0.43 mm. Antenne as long as thorax; club compact, the 
liues separating the joints of the club somewhat oblique. Colors as 
with female, except that metanotum and all cox are black. 
Described from three males and three females. Parasitic on Briocoe- 
cus azalee, District of Columbia (Department of Agriculture). The 
punctured seutellum is unique. 
