806 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
This insect is injurious in the Western States, according to Riley, 
who describes and figures it in his Fifth Missouri Keport. The disease 
to which it gives rise is sometimes called the u white malady." Riley 
states that it produces two broods a year in Missouri, i. e., one in July 
and again in October. It occurs on the white pine, red pine, Bhotan 
pine, yellow pine, and Cembra pine, and sparsely on different species 
of imported pines. I have also noticed it at Brunswick, Me. 
147. The pine inhabiting aphis. 
Aphit pinicohns Fitch . 
Found solitary on the pine. Straw yellow, densely covered with white 
powder ; antennae black, bases pale, with a dusky ring ; fore wings with 
a fuscous spot on the tip of each vein ; t. veins brown, hyaline at their 
bases, the costal one straw yellow ; honey-tubes very short. Length to 
tips of wings 0.25 inch. 
This probably belongs to another genus, but I am unable to place it 
from the short description given by Dr. Fitch. Such is also the case 
with reference to the preceding species, which possibly belongs to Chaito- 
phorus, and may be identical with my Ch. populicula. I give them as 1 
find them, with the hope that some one into whose hands this report falls 
may be able to settle this point satisfactorily by finding the species. 
(Thomas, 3d. Rt. Ins. 111.) 
148. Lachnus australis Ashmead. 
This plant louse, according to Mr. William H. Ashmead, in Florida 
clusters upon the new and tender branches of the southern pine (Pinus 
australis), which they puncture with their remarkably long beaks, 
causing the sap to exude, and the branch upon which they exist to 
become gummy and sticky. Mr. Ashmead has bred from it three 
species of ichneumons, two of them allied to Aphidius, and the third a 
Chalcid parasite. 
Wingless female. — Length .08 to .16 inch. Uniform light brown ; head small ; eyea 
large and round, bulging out on each side ; beak extremely long and slender, reach- 
ing to the last ventral segment ; antenna} 6-jointed, reaching to the hinder part of the 
thorax ; joints 1 and 2 bead-like ; third longest, widest at apex ; thorax twice as wide 
at hinder part as the head ; abdomen very broad, wider than long, with numerous 
black spots on top, arranged in transverse rows; nectaries (honey-tubes) black, 
tuberculous, nearly obsolete ; legs very long, setaceous, and black, excepting basal 
third of tibia 1 , which is yellowish. 
Winged male. — Blackish. Length .08 to .10 inch. Expanse of wings about .35 
inch. Head black, punctate, outer margin pale yellowish ; prothorax dark brown 
or blackish, greenish yellow along the suture next the head ; antennae short, reaching 
below the middle of the thorax ; mesothorax beautifully marked with pruinose bands, 
starting from each corner of the scutellum, which is transverse and pruinose ; they 
curve inwards and meet on top of the mesothorax, forming one baud, which runs 
straight forwards, dividing again obliquely into two bauds, to the juncture with the 
prothorax ; two pruinose dots on each side of this band ; wings hyaline, front pair with 
a very long, thick stigma, with the third vein remarkably thin and three-branched; 
hind wings with two oblique veins; abdomen with a dorsal row of whitish or pruinose 
