24 
men, while the specimens which I have show considerable colorational 
variation. * 
The appearance of this parasite upon the destructive mealy bug is to 
be welcomed. A large colony of the latter insect was completely de- 
stroyed by this Leptomastix and the Chiloneurus just mentioned. It is 
possible that both are recent introductions; at all events, neither has 
ever been bred from JDactylopius here before, and we shall watch for 
them another season with interest. 
Subfamily APHELININ^E. 
The two genera mentioned under this subfamily may be separated as 
follows : 
A. Fore wings with a hairless line extending from stigma transversely towards base 
of wing Aphelinus. 
B. Fore wings with no such line Coccophagus. 
Genus Coccophagus Westwood. 
Antenna? 8-jointed; scape rather short and stout ; pedicel one-third the length of 
scape and of about the same thickness ; joints 3, 4, and 5 increase very slightly or 
not at all in thickness and decrease in length ; club very plainly 3-jointed, a little 
longer than the preceding two joints. Mesoscutum large, its posterior broader, with 
a slight re-entering angle; sutures between parapsides and scapulae very oblique. 
Mesoscutelluin nearly as long as broad, rounded behind, the fore part forming three 
sides of a hexagon, the side bordering on the scutum a little shorter than the other 
two ; wings equally hairy, except at base ; no hairless line. Stigma small, but plainly 
visible, subtriangular in form. Middle tibial spur usually not as long as first tarsal 
joint, often curved. Species usually of somber colors, often of two contrasting colors, 
black and yellow. 
37. (1) Coccophagus vividus, n. sp. 
Female. — Length, 1.03 mm ; .wing expanse, 1.96 mm ; greatest width of fore wing, 
0.35 mm . General color shiny black ; antenna? light brown, with the customary dark 
brown longitudinal carinas ; greater part of mesoscutelluin and visible portion ofme- 
tascutellum bright orange-yellow, the line of juncture of the two colors on the meso- 
Bcutellum slightly irregular but not curved; tegulae yellow ; all coxa? and femora 
brown, yellow at joints; all tibse and tarsi yellow, occasionally a dusky patch near 
base of hind tiba3, and the fifth tarsal joint is of course brown. Entire mesonotum 
finely punctate. 
Male. — Length, 0.55 mm ; wing expanse, 1.47 mm : greatest width of fore wing, 0.25 mm . 
Color as in female, except that the teguhe are brown and the scutellar spot is dull 
lemon -yellow, as large proportionally as in 2 , but not so vivid. 
Described from 1 6* and 3 9 's bred from Lecanhim liesperidum on or- 
range, Crescent City, Fla., by H. G. Hubbard. [Dept. Agr. Coll.] 
* Since the above was written I have received from Dr. Mayr the following concern- 
ing this species: 
"Was nun Ihre letzte Sendung betrifft, so steht Ihr Leptomastix Dactylopii der 
europiiischen Art sehr nahe, und wenn Ihre Exemplare nicht etwadnrch unnatiirliche 
Verhiiltnisse der Zucht im Zimmer besonders klein und uuentwickelt geblieben sind, 
so kaun Ihr Leptomastix ganz gat als eigene Art betrachtet werden, wenn auch die 
Unterschiede nur in der Grosse und Farbung vorhanden sind." 
