398 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 

 27. Lochmwus cinereus Packard. 



The caterpillar of this species has been fouDcl by Professor Riley 

 feeding on the maple, and closely resembling the caterpillar of L. olivata. 

 Packard. The type of my original description was captured by 

 myself in Brunswick, Me. ; Professor Riley's was bred in Washington^ 

 D. C, the moth appearing May 28. Mr. Howard L. Clark has found it 

 not uncommonly in Rhode Island. My original type was from Maine. 



Moth. — Male and female : Antennae well pectinated on the basal two-thirds, filiform 

 at the end ; the body and wings greenish ash, the wings green, olive sea-green in 

 tint. Head greenish on top, ashen in front ; palpi ashen, black on the sides. Thorax 

 ashen, greenish on the sides at the insertion of the wings ; on front edge of the thorax 

 a dark brown transverse stripe ; a more distinct transverse stripe behind, and the 

 hinder edges of the tegnlse dusky-; between the two oblique tegular stripes the 

 hinder part of the thorax is dark brown, including a small tuft on the hinder 

 edge of the thorax and a large two-lobed flattened tuft which covers the base of 

 the abdomen, the posterior edges of the double tuft becoming blackish. Fore- 

 wings rather short and broad, the apex less produced than in L. oUvatus ; the wing 

 unusually free from scalloped bands ; two unequal scallops at the insertion of the 

 wing (obsolete in the male before me) ; middle double-scalloped line well marked 

 in the female (obsolete in the male in front of the median vein); the scallops 

 uneven, two in median space, the largest one rectangular; a short acute scallop 

 in front of the median vein and extended outward along it ; two nearly even- 

 sized scallops on the costal edge ; a clean space between the middle and outer 

 scalloped lines; outer scalloped line very irregular, scallops deep and heavy black- 

 brown, and the line curving deeply inward from the median vein to near the apex on 

 the costa. The costal edge on outer third, with three distinct narrow linear black 

 spots ; the venules marked with black and whitish-gray scales (in the male this 

 outer line is almost obsolete). A submarginal row of eight blackish spots, three of 

 \vhich are situated behind the last median venule ; this series is plainly dislocated, 

 the subapical three being set farther inward than those below, and this is a ready 

 means of separating the species from L, olivatus. In these females the fore-wings and 

 thorax are yellowish green, while in the male of a clear sea-green. Hind wings 

 dusky ashen, yellowish on the costa, on the outer third of which is the begiuniug of 

 an outer whitish line, forming two scallops; the wing is pale, almost whitish at base, 

 but dusky toward and at the margin. Beneath, the fore-wings are clear ash, the 

 costa a little dusky, with fine blackish linear marks toward the apex ; the sub- 

 marginal row of blackish spots appear through, but the series is not dislocated ; 

 hind-wings not markeil, except by three submarginal dusky spots behind the second 

 median venule ; abdomen ash, with a faint yellow-green tint ; length of body, male, 

 20 to 21">™ ; female, 23""". Expanse of wings, male, 45™"" ; female, 55'""' (2.10 inches). 



This species may be known by the less pointed fore-wings, quite 

 square in the male, by the clear space between the middle and outer 

 scalloped lines, and by the dislocated series of submarginal dusky 

 spots; the wings in the male are uniformly sea-green, while in the 

 female the tint is yellowish green. My original description in third 

 vol. Proc. Ent. Boc. Philadelphia, is defective, as the type specimen 

 was rubbed, and without the greenish tint of fresh specimens. From 

 L. olivatus it is distinguished by being more uniformly and darker 

 green and by the lack of whitish patches. The discal spot is almost 

 obsolete, and with only a slightly marked dusky patch beneath, this 

 blackish patch being large and conspicuous in L. olivatus. 



