Page:Wood 1865 - The Myriapoda of North America.djvu/88

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THE MYRIAPODA OF NORTH AMERICA.
223

P. bifidus.


P. rubro castaneus, segræntis et antice et postice late fulvo-marginatis, laminis lateralibus dilute fulvis; scuto anale triangulare, apice truncato et decurvato; appendicibus masculis, elongatis, pilosis; spina terminale gracillima, proxima cylindracea, ultima bifida et nonnihil abrupte curvata, spinulo basale gracillimo parvo armata.

Reddish-chestnut; segments both anteriorly and posteriorly broadly margined with yellowish; lateral laminæ dilute yellow; anal scutum triangular, its apex truncate and decurvate; male appendages elongate, pilose; their terminal spine very slender, proximally cylindrical, distally bifid, and somewhat abruptly curved, armed with a small, very slender basal spine.

P. bifidus, Wood, Proc. Acad. Nat. Sci., 1864, p. 7.


Fig. 52
All of my specimens have been preserved for a length of time in alcohol, so that the description of color is not as accurate as it should be. The anterior aspect of the head is much lighter than the vertex, which is medianly strongly canaliculate. The antennæ are dilute fulvous, rather longer than in P. Virginiensis and distally, sparsely and shortly pilose. The spinules on the distal ends of the first and second joints of the long and slender feet are robust, but are often obsolete anteriorly. The terminal scutum has several punctæ closely resembling pores. The preanal scale is triangular; it has two little elevations surmounted by a punctum. The male appendages (Fig. 52) are elongate. Their terminal spine is very slender and cylindrical in its proximal portion; distally it is bifid and strongly curved. It is ornamented with a very slender curved basal spinule.

Hab, Georgia. Museum of Comp. Zoology.—Dr. Le Conte. Texas. Smithsonian Collection.—G. Wurdeman.


P. trimaculatus.

P. saturate rubro-brunneus; scutis postice fulvo trimaculatis, corrugatis; antennis ultimis pilosis; appendicibus masculis maximis, crassis, ultimis obtuse rotundatis, spina terminali gracillima, enormiter convoluta. (Fig. 53.)

Deep reddish-brown; scuta posteriorly trimaculate with yellow, corrugate; antennæ distally pilose; male appendages very large, thick, distally obtusely rounded; terminal spine slender, irregularly convolute.

P. trimaculatus, Wood, Proc. Acad. Nat. Sci., 1864, p. 6.

The color of this species is a dark reddish-brown. Each scutum has on the posterior