Eresus cinnabarinus. PI. Ill, fig. 23.
Eresus cinnabarinus, Walck., Hist. Nat. des Insect. Apt., tom. i, p. 395.
— — Latr., Gen. Crust, et Insect., tom. i, p. 121.
— Koch, Die Arachn., Band iv, p. 106, tab. 138, fig. 318.
— — Blackw., Annals and Mag. of Nat. Hist., second series, vol. vii,
p. 400.
-i— quadriguttatus, Hahn, Die Arachn., Band i, p. 45, tab. 12, fig. 35.
— — Koch, Die Arachn., Band iv, p. 104, tab., 138, fig. 316. .
— - t - ; Koch, Uebers. des.Arachn. Syst., erstes Heft, p. 35.
— annulatus, Hahn, Die Arachn., Band i, p. 47, tab. 12, fig. 36.
— — Koch, Die Arachn., Band xiii, p. 14, tab. 435, fig. 1087.
—■ illustris, Koch, Die Arachn., Band iv, p. 105, tab. 138, fig. 317.
Length of the female, jrd of an inch*
The posterior eyes of the four constituting the small trapezoid included in the quadrilateral
figure described by the other four are the largest of the eight. The cephalo-thorax is
large, rounded on the sides, and convex before j it is black, with a red band on the posterior
part of each lateral margin, which tapers to its anterior extremity. The falces are short,
powerful, conical, and vertical; these organs, with the maxillse, lip, and sternum, are black.
The legs are robust, hairy, and black, with white annuli at the articulation of the joints, the
thighs of the second, third, and fourth pairs being commonly clothed with red hairs; the
fourth pair is the longest, then the first, and the third pair is the shortest. The palpi are
short, strong, hairy, and black, having, like the legs, white annuli at the articulation of the
joints. The abdomen is oviform, depressed, densely covered with short hairs, and projects
over the base of the cephalo-thorax; on the upper part, which is of a bright-red colour, there
are four conspicuous black spots, encircled with white hairs, forming a square; and in some
instances an additional pair of small spots of the same hue occurs in the space between the
square and the spinners; the under part is black, with the exception of a white spot near its
posterior extremity, and the branchial opercula, which are covered with red hairs.
The male may be distinguished from the female by its smaller size, and by the structure
of its palpi; the digital joint is oval, convex, and hairy externally, concave within, comprising
the palpal organs, which are moderately developed, prominent, conical, and somewhat
pointed.
The colour of the legs and the number of black spots on the upper part of the abdomen
are not ponstant in this species, which is admitted as British on the authority of Dr. Leach.
See the Supplement to the fourth, fifth, and sixth editions of the ‘ Encyclopaedia Britannica,’
article Annulosa.
Genus SALTICUS (Latreille).
Eyes disposed in three rows, constituting three sides of a square, in front and on the
sides of the cephalo-thorax ; the two intermediate eyes of the anterior row are the largest, and
the intermediate eye of each lateral row is much the smallest of the eight.
M axilla short, straight, enlarged at the base, where the palpi are inserted, and at the
extremity, which is rounded.
L ip oval, obtuse at the apex.
Legs robust, varying considerably in their relative length in different species.
Salticus scenicus. PI. Ill, fig- 24.
Salticus scenicus, Latr., Gen. Crust, et Insect., tom. i, p. 123.
__ _ Hahn, Die Arachn., Band i, p. 57, tab. 15, figs. 43, 44.
__ __ Blackw., Annals and Mag. of Nat. Hist., second series, vol. vii,'
p. 400.
Attu s — Walck., Hist. Nat. des Insect. Apt., tom. i, p. 406.
r- ■ Sund., Vet. Acad. Handl., 1832, p. 202.
Calliethera scenica, Koch, Uebers. des Arachn. Syst., erstes Heft, p. 31.
__ — Koch, Die Arachn., Band xiii, p. 37, tab. 439, figs. 1106, 1107.
-j L L ; histrionica, Koch, Uebers. des Arachn. Syst., erstes Heft, p. 31.
__ — Koch, Die Arachn., Band xiii, p. 42, tab. 439, figs. 1110, S 1111- Titulus 31, Lister, Hist. Animal. AngL De Aran., p. 87, tab. 1, fig. 31.
Length of the female, \th of an inch; length of the cephalo-thorax, ^th, breadth, *jth;
breadth of the abdomen; ^th; length of a posterior leg, Jth; length of a leg of the second
pair, Jth.
The legs are hairy, and of a yellowish-brown colour, marked with brownish-black
annuli; 'the fourth pair is the longest, then the third, which a little exceeds the first in length,
and the second pair is the shortest; each tarsus is terminated by two curved, pectinated claws,
below, which there is a scopula. The palpi are short, hairy, and have a yellowish-white tint,
with the exception of the axillary joint, which has: a dark-brown hue. The cephalo-thorax is
thinly covered with hairs, somewhat quadrilateral, abruptly sloping behind, prominent in
front, projecting beyond the falces; it is black, bordered with white, except on the posterior
margin, and has a white spot near each posterior eye. The falces are conical, gibbous in
front, vertical, and armed with a few teeth on the inner ■ surface; the sternum is oval and