The female (Fig. 33) appendages consist of two bodies conjoined at their bases, and blunt at their free extremity. When viewed from one aspect they appear cylindrical, but, from the other, flattened or even concave; opposite to the latter face there is a broad, irregular piece, which has its free extremity scolloped.
Hab. Catskill Mountains, New York.— Dr. H. C. Wood, Jr.
I. Pennsylvanicus.
I. brunneus; antennis filiformibus, modicis, pilosis, vix subclavatis, articulis nigricantibus apicibus albidis; segments 63; mucrone recto, nonnihil breve; corpore postremo piloso.
Brown; antennæ filiform, moderate, pilose, scarcely subclavate, their articles blackish with whitish apices; segments 63; mucro straight, rather short; body posteriorly pilose.
I. Pennsylvanicus, Brandt, Recueil, p. 85.
"Gervais (Suit a Buffon), Apteres, vol. iv, p. 179.
Fig. 34
The general color of this species is brown, but there is a series of lateral black dots
around which the color is often much lighter. There is a pair of punctations on the vertex, which is traversed by a broad blackish band. The inferior portion of the head is
light brown, often mottled. The labrum is moderately
emarginate. Each scutum is furnished with a series
of rather distant puncta, from each of which proceeds a
more or less obsolete superficial groove.
The male appendages (Fig. 34) are composed on each side of two parts attached to the basal piece. The outer of these is nearly straight, though somewhat rolled on itself, and is distally enlarged and pilose. The inner part is formed chiefly of a thin, straight piece, very much rolled and twisted. Distally it is expanded into a very thin, transverse, diaphanous, alar process, with serrated edges.
Hab. Pennsylvania.
I. canaliculatus.
I. brunneus, interdum cæruleo tinctus; antennis filiformibus, pilosis, nonnihil clavatis; segmentis 51; scutis supra et infra arete canaliculars, singulo pilorum longorum distantium serie unica instructor mucrone longo, recto; squamis analibus longe pilosis; squama preanali triangula, acuminata.
vol. xiii.—26
