Eustigmaeus najeeba (Habeeb)

Fan, Qing-Hai & Zhang, Zhi-Qiang, 2004, in the collection of H. Habeeb, Zootaxa 763, pp. 1-28 : 17-18

Eustigmaeus najeeba (Habeeb) ( Figs. 10–12 )

Ledermuelleria najeeba Habeeb, 1973: 1 .

Material examined

Type, 1 adult female and 1 damaged adult female, USA, New York, Cayuga Co., small pond east of Auburn, on Leptodictyum riparium , 6 May 1973, by H. Habeeb; cotype, 4 adult females, same data as type.

Diagnosis

Adult female. Idiosomal shield with pores in marginal area, minute punctations and faint reticulations medially; idiosomal setae tapered with pointed tips; ratios vi: vi–vi = 1.6 (1.2–1.6), ve: ve–sci = 0.9 (0.7–0.9), sci: sce = 1.0 (0.7–1.0), c1: c1–c1 = 0.3 (0.2–0.3), e1: e1–e1 = 0.2, c1–c1: d1–d1: e1–e1: f1–f1 = 0.9 (0.9–1.2): 1.5 (1.3–1.8): 1.6 (1.5–1.8): 1.0; with 2 callosities between idiosomal shield and humeral shield. Dorsalmost setae on femora I 0.6 (0.6–0.7) times lengths of h1; tarsi IV each with a solenidion ().

Description

ADULT FEMALE (n = 6)

Gnathosoma . Finely punctate. Chelicerae about twice as long as movable digits (95 (92–100): 26 (25–32)). Palp 69 (67–77). Subcapitular setae m about as long as n, m = 15 (15–17), n = 17 (16–17); m–m less than distance n–n; m–m = 25 (25–26), n–n = 30 (27– 32), m–n = 12 (12–13).

Idiosoma. Nearly round, 353 (325–365) long, 295 (251–337) wide. Dorsal idiosomal shield with pores in marginal area, minute punctations and faint reticulations in central area. Idiosomal setae tapered with pointed tips; ratios vi: vi–vi = 1.6 (1.2–1.6), ve: ve–sci = 0.9 (0.7–0.9), sci: sce = 1.0 (0.7–1.0), c1: c1–c1 = 0.3 (0.2–0.3), e1: e1–e1 = 0.2, c1–c1: d1– d1: e1–e1: f1–f1 = 0.9 (0.9–1.2): 1.5 (1.3–1.8): 1.6 (1.5–1.8): 1.0; eyes 14 (13–15) in diameter; setal lengths: vi 35 (33–37), ve 36 (35–37), sci 27 (25–30), sce 27 (27–35), c1 24 (24– 25), d 1 22 (22–25), d 2 22 (22–30), e1 33 (32–33), e 2 26 (25–27), f1 36 (36–42); distances: vi– vi 22 (22–30), vi–ve 67 (62–67), ve–sci 39 (39–50), sci–sce 49 (40–49), c1–c1 88 (87– 105), c1–d1 85 (82–90), d1–d1 143 (132–152), d1–d2 77 (60–85), d1– e 1 82 (80–90), e1–e1 147 (147–167), e1– e 2 54 (52–62), e1–f1 46 (46–50), f1–f1 94 (87–102); humeral setae c 2 26 (26–27), slightly longer than c1. Suranal setae h1: h2 = 1.4 (1.2–1.4), h1 35 (35–42), h2 25 (25–35). Endopodal shields I–II separated along midline, ventral setae 1a about as long as other two pairs; endopodal shields III–IV separated along midline, 3a situated between coxae III, lengths: 1a 20 (20–22), 3a 20 (19–22), 4a 20 (20–22). Aggenital shield and genitoanal valves confluent, with 3 pairs of subequal setae, ag1 19 (19–20), ag2 19 (19–20), ag3 19 (19–20); pseudanal setae ps1 thicker than other two pairs, ps 3 18 (18–22), ps 2 8 (8– 12), ps1 15 (15–17).

Legs. Length: leg I 221 (221–232), leg II 185 (185–200), leg III 191 (191–200), leg IV 232 (232–240). Dorsalmost setae on femora I (dFI) clavate and pointed, 20 (20–27) long, 0.6 (0.6–0.7) times length of h1. Dorsalmost setae on genua I (dGI) as dFI, 25 (25–30) long; on genua I about 4/5 length of dGI, 20 (20–22), on genua II peg­like, pointed, 7 (7–8). Counts of setae and solenidia on legs I–IV: coxae 2 + 1 elcp, 2, 2, 2; trochanters 1, 1, 2, 1; femora 6, 5, 3, 2; genua 3 + 1, 3 + 1, 1, 1; tibiae 5 + 1 + 1 p, 5 + 1 p, 5 + 1 p, 5 + 1 p; tarsi 13 + 1, 9 + 1,,. Lengths of solenidia: I 22 (22–27), II 15 (15–17), III 8 (8–11), IV 5 (5–6).

Figures

FIGURE 10. Eustigmaeus najeeba (Habeeb) (adult female). A, dorsal view of idiosoma; B, dorsal view of gnathosoma; C, palp; D, dorsal idiosomal setae.

FIGURE 11. Eustigmaeus najeeba (Habeeb) (adult female). A, ventral view of idiosoma; B, subcapitulum; C, suranal and genito­anal area.

FIGURE 12. Eustigmaeus najeeba (Habeeb) (adult female). A, leg I; B, leg II; C, leg III; D, leg IV.