24 
in the black species. The posterior border of the mesoscutellum is 
rounded and the anterior border is bounded by three straight lines. 
The antenne are 6-jointed, scape long and slender, pedicel normal, joints 
1 and 2 of the funicle very short, joint 3 about as long as or a little 
longer than the pedicel, club compact, not jointed, subellipsoidal. 
The middle tibial spur is very pronounced, mesoscutar parapsides rather 
small, marginal vein very long, longer than submarginal; stigmal and 
postmargimal short. 
ANALYSIS OF THE SPECIES OF APHELINUS. 
Eyes hairy; general color black; pedicel twice as long as thick. 
Feaduyetiplack: Aes sce cleo ae teen tls one iape o oirlete aia syors sinie inl sahara mali 
HHeadsbrigh borane eye... eee aoe eee ie oe oe hele eee yas eee JSiaviceps 
Eyes naked; general color yellow; pedicel one and one-half times as long as thick. 
Club tywace as longo as penultimate joimtes sec cee oe ec elas alee mytilaspidis 
Club thrice as long as penultimate joint. 
Scutellumspointed at base... .ceceneeoeeee eee eee eee ee CUOnnis 
Scutelluin normal. 
Forewings with only a faint cloud beneath stigma...-..-..---. diaspidis 
Forewings witha distinct fuscous cloud occupying the whole discal region 
and accented below stigmal and at its proximal border . . fuscipennis 
Aphelinus mali (Haldeman). 
Eriophilus mali Haldeman. Proc. Boston Soc. Nat. Hist., vol. vi, p. 402, 1860. 
Aphelinus mali Howard. Ann. Rep. Dept. Agric., 1880, p. 356. 
Blastothwix rose Ashmead. Trans. Am. Entom. Soc., vol. x1u, p. 130, 1886. 
Female.—Length, 1.2 mm.; expanse, 2.3 mm.; greatest width of fore- 
wing, 0.41 mm. Pedicel twice as long as thick; club nearly three times 
as long as penultimate joint; head and thorax smooth, shining; meso- 
scutum with sparse, irregularly placed, and fine punctures; mesoscutel- 
lum very faintly shagreened; abdomen perfectly smooth; mesopleura 
at tip faintly shagreened, smooth at base; hind coxe also faintly sha- 
greened; eyes plainly hairy; vertex with rather dense black pile; 
sparse hairs of thorax black; abdomen ovate, as wide as thorax, con- 
cave above. Discal ciha of forewings proximally bordering hairless 
streak much longer and stouter than those on distal side of streak. 
Of these proximal cilla there are only two or three irregular rows, the 
remainder of base of wing being hairless, except immediately below 
marginal vem, and excepting also the normal bristles arismg from the 
submarginal. General color black, not metallic; base of abdomen, and 
Sometimes apex, yellow-brown; antennze honey yellow. Front and 
middle femora and middie and hind tibie, dark brown, lighter at 
extremities; front tibiw shghtly dusky at base, but in general sordid 
yellow. Hind femora pale sordid yellow; all tarsi light; wings hya- 
line; submarginal vein dark brown, marginal much lighter. 
Male.—Similar to female, slightly smaller; abdomen acuminate. 
Proximal cilia bordering hairless streak of fore-wings, consisting of a 
single row for a greater part of the wing width. 
