INSECTS INJURING OAK-LEAVES. 181 



reddish brown ; vertex white. Fore wings, with two inner reddish-brown diffuse 

 lines, the inner situated half-way between the base of the wing and discal dot, 

 curA^ed and more or less scalloped, the outer curved, situated just be.\ond the discal 

 dot, and joining the third outer line on the second median venule ; it is broader and 

 still more diffuse than the basal line. Outer line straight, bent back at a very acute 

 angle on to the costa, the line above the bend being more or less angularly curved 

 and dilated on the costa ; an oblique white line extends from the bend to the costa 

 just below the apex, which is white above and blackish below, with a large reddish- 

 brown patch extending trom below the apex to the second median venule. Discal 

 dots in both wings black ; scales flattened as usual. Hind wings with a single slightly 

 curved line just beyond the middle of the wing. Expanse of wings, 2.20 inches. 



253. Eutrapela transversata (Drury). 



This rather common caterpillar was first found by Abbot feeding on 

 Clethra alnifolia. In the Northern States it feeds on the maple (Good- 

 ell) and currant (Emerton), and we have found the moth just emerged 

 resting on the leaves of the red maple. In Florida, however, we have 

 found it at Crescent City in April feeding on the live oak. It was 

 reared by the U. S. Entomologist at Washington, where on May 6 it 

 spun a rather dense cocoon between the leaves, the moth emerging 

 May 31. The larva occurred in Virginia June 26, where it feeds on the 

 oak (Koebele); in Massachusetts the caterpillar occurs in June; thus 

 it is apparently double-brooded in Florida and the cotton States, but 

 siugle-brooded in the Northern States. 



Larva. — It is about 1 inch in length and quite uniformly dark gray, with a paler 

 gray, elongated spot each side of the first abdominal segment. The lateral margin 

 forms a flattened carina, on which the stigmata are .situated. Both edges of this 

 carina are purplish, and the small stigmata white with black annulus. Piliferous 

 warts small and black. There is a large, prominent, transverse, bilobed projection 

 of a blackish color on the fourth abdominal segment, which is bordered in front by a 

 whitish triangle. Behind thi« projection, and parallel with its lateral angles, run 

 two whitish dorsal lines to the anal plate. There are also two small black conical 

 tubercles on the last segment. Head concolorous with the body, the face marked 

 with a dull black semicircular spot, the angles of which end near the base of the 

 mandibles. 



The smaller larva, which measured about three-fourths of an inch in length, is 

 dark purple, with the head entirely dull black. The projection on the fourth abdom- 

 inal segment is in this specimen still divided into two oval and rather prominent 

 tubercles which are orange externally. (Riley.) 



Pr.pa. — Large and long, not very stout and short compared with that of E. clem- 

 ataria; acutely pointed at the end of the abdomen. In color slightly pale ash-mahog- 

 any. The last segment much corrugated longitudinally at the base of the cremaster, 

 but the ridges are not swollen anteriorly as in E. clemaiaria. Cremaster flattened, 

 conical, not discolored with black, with two terminal excurved thick setae, and only 

 one pair of minute subdorsal-lateral setae. Length, 21'"™. 



The moth. — It may be recognized by its large size, the very falcate wings, the 

 obtusely bent outer line on the fore wings, and by the submarginal shade or row of 

 spots on both wings; the hind wings extend farther than usual behind the tip of 

 the abdomen. Fawn color, varying to ocherous; head chocolate brown in front, the 

 vertex white. Fore wings with the inner line usually present, curved, consisting of 

 two large scallops meeting on the median vein and pointing inward, Outer line 

 straight, more or less distinctly bent near the apex, turning at right angles into the 



