Brown, sometimes with a bluish tinge; antennæ filiform, pilose, somewhat clavate; segments 51; scuta both above and below closely canaliculate, each furnished with a single series of long distant hairs; mucro long, straight; anal scales with long hairs; preanal scale triangular, acuminate.
I. canaliculatus, Wood, Proc. A. N. S., 1863, p. 12.
The color of this species is a dark brown, with sometimes a bluish tint, and very generally mottled with light brown. The triangular eyes are connected by an obscure black band. The labial margin is broadly emarginate, and is furnished with two or three denticules, as well as a double row of distant rigid hairs. The joints of the antennæ are tipped with white. The first scutum is, in the female, slightly prolonged laterally, where it is rounded off; on its anterior surface there is a dark, somewhat crescentic, blotch. The anterior of the two subscuta, forming each scutum, is closely and deeply canaliculate through its whole circumference; it is broader than the posterior, and very slightly elevated, so as to give the body somewhat of a moniliform appearance. The ring of hairs surrounding each scutum is frequently imperfect; it may be from the handling of the specimen. The posterior subscutum is smooth above, and distantly and shallowly canaliculate below. The posterior portion of the body is very pilose. I have never seen a male. Length, 1½ inches.
Hab. Chester County, Pennsylvania.—Dr. H. C. Wood, Jr.
I. laqueatus.
I. brunneus, interdum cæruleo tinctus; antennis filiformibus, pilosis, nonnihil clavatis; segmentis 49; scutis et supra et infra valde arcteque canaliculars; mucrone longo et recto; squama preanali triangula, vix acuminata.
Brown, sometimes with a bluish tint; antennæ filiform, pilose, somewhat clavate; segments 49; scuta both above and below deeply and closely canaliculate; mucro long and straight; preanal scale triangular, scarcely acuminate.
I. laqueatus, Wood, Proc. Acad. Nat. Sci., 1864, p. 13.
The color of this species is brown, sometimes bluish, mottled, almost areolated, with light brown. The eyes are triangular, and are united by a dark band. The head has its anterior margin broadly emarginate, denticulate, and furnished with two rows of distant rigid hairs. The antennæ have their proximal joints nearly cylindrical, and are light colored, with their articles indistinctly tipped with white. The first scutum has rather small lateral processes, and is ornamented on its anterior border with a dark band. The anterior subscuta are deeply and closely canaliculate over the whole of their surface. The anal scales are furnished with a series of long hairs along their valvular margin. The posterior portion of the body is generally adorned with a very few scattered hairs, but I have never seen it pilose. Length, ¾ of an inch.
