Comaroma maculosa, Oj, Ryoji, 1960

Oj, Ryoji, 1960, Linyphiid Spiders of Japan (part), J. Inst. Polytechnics Osaka City, D 11, pp. 184-185 : 184-185

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Comaroma maculosa

sp. nov.

Comaroma maculosa sp. nov. (PI. XIV, Figs. 190-195)

DESCRIPTION: ♂, ♀ Cephalothorax and appendages chitinized, glossy and reddish brown. Carapace viewed from above broad and oval in outline, particularly in the male, evenly rounded on the sides, very slightly constricted at the cervical grooves, broadly rounded across the front, and has numeimis granulations on the posterior half covered by the shoulder parts of abdomen; viewed from the side, it is rather steeply ascending to the back of head; head very slightly descending forward and convex, then steeply descending to ocular area. Clypeus straight and nearly vertical, as wide as the ocular area.

Eyes all small, particularly AME as small as the black dot and scarcely visible; eyes almost touching each other; the width of ocular area far smaller than that of head; both rows of eyes nearly straight; PME with an interspace about one radius of itself and contiguous with ALE; anterior eyes arranged closely together.

Chelicerae rather stout, with small 3-4 promarginal teeth, fang long but not double-curved; maxilla attenuated and apically converged. Stermini heart-shaped, as long as wide, convex, furnishآ ¬ ed with hairs sparsely spread, and broadly produced between the hind coxae. Legs rather stout; metatarsi nearly as long as tarsi; tarsus I not spindle-shaped. Spines inconspicuous. Metatarsus IV lacks a trichobothrium. Tm I 0,45. Tarsus IV with a row of serrated bristles. Abdomen in the female bears reddish-brown sclerites on epigastric area and around spinners, the other parts all covered closely with numerous chitinized reddish-brown dots each carrying a fine hair on the pale reddish-yellow ground, and in addition with several (6-7 on each side) chitinized reddish-brown platelets which are slightly larger than the dot, and make a line along the sides on the dorsum. On the side there are about three longitudinal deep wrinkles, of which the uppertwo run parallel with each other, and the under one intersects immediately upper one (Fig. 4). Abdomen of the male bears a large dorsal sclerite which is very rugous, and without any wrinkles.

Epigyne very simple, with a transverse opening behind the epigastric sclerite, blackish spermathecae visible through the tegment.

Male palp: Patella and tibia like beads, the latter has no apophysis. Cymbium with an angular process laterally. Paracymbium small, triangular, and has a rather elongate and pointed tip.


TYPE LOCALITYS: Mt. Ilcoma, Oct. 16, 1955, ♀ (holotype); Hiraoka, Osaka Pref., Mar. 16, 1958, ♂ (allotype), (R. Oi).

Other records; Kanshin-ji, Osaka Pref., Oct. 29, 1951, 1 ♀ (R. Oi). Obe, Island of shodo, June 5, 1955, 1 ♂ 1 ♀, (Y. Okada). Hisai, Mie Pref., May 4, 1958, 1 ♀, (R. Oi).

This species occurs on the ground in the grass, under dead leaves and rocks.

REMARKS : This species resembles Comaroma simoni Bertkau in general structures, however I propose to refer it to a new species, because it is furnished without a dorsal scutum in the female, nor a spindle-shaped metatarsus 1 in the male. Though 1 have seen no specimen of C. simoni , the palpal structure of this species seems to be different from that of our species.