796 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



the scrub pines (P. inops) around Washington. These larvse were bred 

 to the perfect state and proved to be the same species. 



"A leaf-miner of precisely the same habits and of almost the same 

 appearance was found the past winter in the leaves of the southern 

 pine (P. australis) at Macon, Ga., a point where, owing to a sudden fall 

 of some 400 feet in altitude, the northern and southern floras meet in 

 a remarkable manner. Progressing southward, a careful search was 

 made for additional specimens of this leaf-miner, but none were found 

 except in this one locality. Assuming the identity of the two forms 

 (they have since been bred and proved identical), it puzzled us for some 

 time to discover how the species could have reached P. australis, since 

 the southernmost limit of P. inojys is South Carolina, and P. rigida is 

 essentially northern. It was not until we discovered the same miner 

 in leaves of the yellow pine (P. mitis) that we were able to solve the 

 problem. The yellow pine is not only found north, but also extends 

 south until at Macon, Ga., we can see it mingling with the northern- 

 most specimens of P. australis.''^ (Oomstock.) 



Moth. — Palpi simple; hind wings excised beneatli the tips. Head white, flecked 

 with scales of the general hue of the insect, which may be called a brownish-yellow. 

 Palpi white; the second joint longer than the third, brownish-yellow flecked with 

 fuscous scales on the outer side ; third joint white, with a brownish-yellow annulus 

 about its middle, and another near the tip; antennae white, each joint crossed by a 

 brownish baud. Thorax and forewings of the general hue above mentioned, flecked 

 with fuscous scales. On the forewings are three white fasciie, placed respectively 

 at about the basal, middle, and apical fourths of the wing length ; the apex is densely 

 dusted with fuscous on a white ground, and the dorsal margin is sparsely flecked 

 with brown. The fasciae also are more or less margined with brown scales, and the 

 third one is sometimes interrupted in the middle ; and the fuscous scales which mar- 

 gin the first and second fascije (especially along the second, near the fold) form 

 minute tufts of raised scales. Cilia grayish, with interspersed black scales, which 

 are tipped with white. Under side of the forewings brownish. Hind wings pale 

 grayish with white cilia; abdomen brown above, whitish toward the apex beneath. 

 Expanse of wings three-eighths inch. (Chambers, in Comstock's Report.) 



JSgg. — Seen from above, appears globular, with a diameter of 14""" ; seen from the 

 side, appears so compressed that its long diameter is nearly twice the length of the 

 short. Color reddish brown. Surface marked with delicate, close, meridional carinas, 

 meeting at the center above and below. (Comstock.) 



Larva. — Length when full grown, 4.2™™ ; average width, .58™™. Sub-cylindrical; 

 all segments except head and anal segment nearly equal in diameter, the exceptions 

 smaller. Color yellowish brown ; head, prothoracic aud anal plates dark brown ; 

 mouth-parts yellowish ; prothoracic shield strong, completely divided longitudinally 

 in the middle by a moderately wide suture. (Comstock.) 



Pupa. — Length, 4.4™™ ; average width, .71™™. Head obtusely rounded; wing- 

 sheaths extending to sixth abdomiual segment ; antennal sheaths reaching nearly 

 to end of wing-sheaths, all compactly soldered. General form very nearly cylin- 

 drical ; sixth and seventh abdominal segments spreading at posterior borders ; dor- 

 sal side of anal segment furnished with a cluster of from 10 to 15 delicate tentacu- 

 lar or hook-formed filaments. Color, when first transformed, light yellow brown, 

 soon changing to very dark brown, almost black, on head, thorax, wings, and crural 

 sheaths ; abdomen of a lighter brown, growing still lighter towards the anus. 



Parasites. — A minute chalcid parasite was bred from the specimens found in P. 

 rigida. From 8 to 12 of the larv;e of this parasite are usuallj- found within the 



