Page:Wood 1865 - The Myriapoda of North America.djvu/37

Gen. 8. SCOLOPOCRYPTOPS, Newp.^[1]

Ocelli nulli, segmenta podophora 23, postremum angustum; segmentum ceplialicum imbricatum. Labium edentulum. antennæ 17 articulate.

Eyes none; feet-bearing segments, 23; the last narrow; cephalic segment imbricate. Labium edentate. antennæ, 17 articulate.

S. sexspinosa.

Fig. 12 Fig. 13

S. saturate aurantiaca; pedibus flavis, subcompressis; antennis flavis, interdum aurantiacis, pubescentibus; capite labio mandibulis scutis sternisque punctatis; segmento cephalico subovato; labii margine antico fere recto; scuto postremo angusto, longo; pedibus postremis elongatis, haud pilosis; articulo basali tibiali longiore, spina unica magna in superficie inferiore et altera minore mediana in margine superiore interno et rare altera articulari minutissima; appendicibus analibus lateralibus valde elongatis, profunde dense punctatis, singula spina apicali unica alteraque minutissima in angula superiore posteriore; squama preanali postice vix emarginata. (Fig. 12.)

Deep orange; feet yellow, somewhat compressed; antennæ yellow, sometimes orange, pubescent; head, labium, mandibles, scuta, and sterna punctate; cephalic segment subovate; anterior margin of the labium (Fig. 13) nearly straight; last scutum narrow, long; last feet elongate, not pilose; the basal joint longer than the tibial, with one large spine upon its inferior surface, and another smaller median on its inner superior margin, and rarely a third very small articular; lateral anal appendages very elongate, densely rofoundly punctate, each with a single apical spine, and another very minute one upon their superior posterior angle; preanal scale posteriorly scarcely emarginate.

Cryptops sexspinosus. Say, Journ. Acad. Nat. Sci., ii, p. 112, 1821; Id. (Lequien ed.) Œuvres Entom. i, p. 24; Gervais, Ann. Nat. Janvr., 1837, p. 51.
"" Lucas, Hist. Nat. Anim. Art., p. 547.
""Newport, in Ann and Mag. Nat. Hist., xiii, p. 100.
Scolopocryp. sexspinosa, Newport, Linn. Trans., xix, p. 407.
""Gervais, Apt. iv, p. 297, et Tabl. Myriap. Amer. (Exp. Ameriq. de Sud, part. sept.), p. 36.
""Wood, Journ. A. N. S., 1863, p. 37.

In this species the superior spine of the lateral anal appendages is very minute, and occasionally present only on one side. The color varies from milk-white to a dark reddish orange. The lighter shades are found in those individuals which have recently shed their skins. The color given in the diagnosis may be considered as that which characterizes the species, being the one to which it finally attains. The inferior surfaces of the posterior

1. Linn. Trans., vol. xix, pp. 275, 405.