438 ARANEIDEA. 
B. Femur iv. without ciliated tubercles. 
aa. Tibiz i. and ii. without a series of spiniform bristles. 
a’. Femur i. at least three times as long as the carapace. Sternum 
produced between coxe iv. as far as the posterior side of the 
segment . 2 1 6 ee ee ee ee ee ee METARGYRA, gen. nov. 
b'. Femur i. not more than two-thirds longer than the carapace. 
Sternum not produced beyond the anterior side of the segment. 
a’. Legs clothed with short, fine, erect, silky hairs . . . . . PsupoMETa, gen. nov. 
b*. Legs not clothed with fine, erect, silky hairs. 
a’. Eyes smaller; posterior row almost straight. . . . . . Meta, C. L. Koch. 
b°. Eyes larger ; posterior row strongly recurved . . . . . Aziia, Keyserl. 
bb. Tibize i. and ii. with a series of spiniform bristles on each side . . Do.icnHoGNnatHa, 
[O. P.-Cambr. 
PLESIOMETA, gen. nov. 
Type P. argyra (Walck.). Antilles, Guadeloupe. 
The single species referred to this genus differs from the type of Leucauge in 
possessing, in both sexes, numerous small cusps beneath the tibie and protarsi of the 
first two pairs of legs. The posterior femora exhibit the rows of cilie which are 
characteristic of the group. 
1. Plesiometa argyra. (Tab. XLI. figg. 15,15 a-c, ¢; 16, 16a, 2.) 
Tetragnatha argyra, Walck. Ins. Apt. 1. p. 219, t. 19. fig. 1 (2). 
Meta argyra, Keyserl. Verh. zool.-bot. Ges. Wien, xxx. p. 563 (1880) °*. 
Argyroepeira argyra, Keyserl. Spinn. Amer., Epeiride, p. 3438, t. 18. figg. 253, 253 a-c (2?) 
253 d(¢)°; McCook, Amer. Spid. iii. p. 243, t. 24. figg. 2, 2 a-c (2), 38,3a,6(¢)*; Banks, 
Proc. Calif. Acad. Sci. (8) 1. p. 257°; Simon, P. Z. 8. 1897, p. 870°. 
Linyphia ornata, Tacz. Hore Soc. Ent. Ross. x. p. 66 (1878) *. 
Hab. Nort America, California*—Mexico*, Tepetlapa, Orizaba, Atoyac, Teapa 
(H. H. Smith), Minatitlan, Tepic (fide Banks*®); Guatemaua (Sarg); Panama, Bugaba 
(Champion).—V ENEZUELA ; Guiana’, Cayenne *, Uassa®; Lowrr Amazons (£7. 0. P.-C.) ; 
ANTILLES ®, Guadeloupe}, St. Vincent °. 
LEUCAUGE. 
Leucauge, White, Ann. & Mag. Nat. Hist. vii. p. 473 (1841). 
Argyrvepeira, Emerton, Trans. Conn. Acad. Sci. vi. p. 328 (1884). 
Opas, O. P.-Cambridge, Biol. Centr.-Amer., Arachn. Aran. i. p. 184 (1896). 
Type of Leucauge, L. argyrobapta, White, = L. formosa (Blackw.), Rio Janeiro; that of Argyroepeira, 
L. hortorum (Hentz), N. America ; that of Opas, O. lugens, O. P.-Cambr., Central America. 
_ It is not possible to settle the identity of L. argyrobapta with absolute certainty, but 
there is a strong probability that it is the Tetragnatha formosa of Blackwall, a fine 
