INSECTS INJURING OAK-LEAVES. 189 



on the under side with white. Fore wings long, outer edge very oblique, snow- 

 white as a ground color ; basal third white, mottled with deep brown, especially on 

 the costa. The middle third of the wing brown, bordered with the black basal and 

 «xtradiscal lines. The basal line is deeply and regularly curved outward ; the extra- 

 ■discal line is irregularly and deeply scalloped ; it runs straight from the costa to the 

 great angle on the median line through two deep scallops ; the angle is jagged and 

 sharp, and below the line forms a great curve, sending a point outward on the in- 

 ternal vein. Beyond this line the wing is white, with scattered dark specks, and 

 with aferruginous patch just below the sixth submedian, and a larger one extending 

 from the second median venule to the inner edge of the wing near the angle. Hind 

 wings white, more or less densely mottled with brown on the inner two-thirds ; the 

 •extradiscal line is zigzag, with a large angle in the middle of the wing. Beyond 

 this the markings repeat those of the fore wings. Expanse of wings S.B"""'. 



264. Aplodes mimosaria Guen^e. 



This has beea bred from the oak by Mr. Walsh in Illinois, while Riley 

 has found it feeding on the oak at St. Louis, Mo., July 31. Ic is com- 

 mon in the New England and Central States. 



Larva.- Larva ten-footed, cylindrical, its dorsum with curved lateral appendages 

 covered with short velvety hairs, and similar to those of Limacodes ? hyalinua Walsh, 

 ■except that they are much shorter and none of them abruptly longer than the others. 

 Of a dingy-brown color, and, including the appendages, about one-fourth of an inch 

 in diameter. (Walsh.) 



Pupa. — The pupa is of a pale ocherous-brown color, varied with reddish-brown, 

 with many fuscous dots, especially along the nervures of the wing-cases, and with 

 the caudal spine simple. It measures 0.43 inch, including the spine. (Walsh.) 



Moth.— Four males and females. A rather large species, with the antennae moder- 

 ately well pectinated. Apex of fore wings square, outer edge not very convex. 

 Hind wings well rounded, less angulated than usual ; anal angle square. Body and 

 wangs of the usual pale-green color; head and antennje white, front bright rose- 

 •colored except on front border. Palpi white ; end of second joint and under side of 

 third joint roseate. Both pairs of wings crossed by linear, slightly waved, white 

 lines. Inner line on fore wing, very near the base of wing, regularly curved; outer 

 line straight, waved, parallel with outer edge. Costa narrowly edged with white. 

 Fringe white on both wings. Hind wings with the inner line nearer the base of 

 wing than on fore wings, curved regularly. Outer line bent outward in the middle, 

 the line not so wavy as on fore wing. Beneath both lines faintly reproduced (not 

 *' avec une settle Ugne hlanclie" as Guen^e says). Hind wings and posterior two- thirds 

 of fore wings whitish-green. Outer side of fore femora green, of tibiiB dull red ; 

 two posterior pairs white. Abdomen white, green at base above, with a conspicuous 

 white spot at base. Expanse of wings IJ inches. Length of body, male 0.4.5, 

 female 0.40. 



265. Petrophora diversiUveata Hiibuer. 



Professor Riley found, May 10, at St. Louis, Mo., larvae of this spe- 

 cies feeding on laurel-oak aud elm. Others were found on pear, apple, 

 cherry, and rose. They are of a deep, rich brown above, sulphur-yel- 

 low at sides, and pale beneath. All had entered the ground by June 5. 

 The moths issued November 9. (Unpublished notes.) 



Egg. — Cylindrical, much rounded, and fuller at the posterior than at the anterior 

 end, which is truncated and contracted, with a swollen vein ; white, with the sur- 

 face granulated. 



