A new species of Corinnomma (Araneae: Corinnidae) from southern and eastern Africa, with taxonomic notes on C. olivaceum and C. semiglabrum
Author
Haddad, Charles R.
text
African Invertebrates
2006
2006-12-31
47
71
83
journal article
10.5281/zenodo.7911409
2305-2562
7911409
Corinnomma olivaceum
Simon, 1896
Figs 16, 17
Corinnomma olivaceum
:
Simon 1896: 403
.
Diagnosis: This species can be recognised by PME–PME eye interdistance, which is greater than in the other two species (
Fig. 16
), and the entrance ducts, which are directed anteriorly (
Fig. 17
).
Redescription:
Female
.
Measurements: CL 3.03, CW 2.03, AL 3.10, AW 1.88, TL 6.50, FL 0.23, SL 1.45, SW 1.13, AME–AME 0.10, AME–ALE 0.05, ALE–ALE 0.40, PME–PME 0.18, PME– PLE 0.10, PLE–PLE 0.65.
Figs 16, 17.
Corinnomma olivaceum
Simon
, holotype:(16) cephalothorax, dorsal view; (17) female epigyne, ventral view. Scale bars: Fig. 16 = 1.0 mm; Fig. 17 = 0.3 mm.
Length of leg segments (sequence from femur to tarsus, and total): I 2.10+ 0.85+1.93+1.62+1.15=7.65; II both legs missing; III 1.95+0.75+1.40+1.60+0.80=6.50; IV 2.60+0.90+2.50+2.75+1.00=9.75.
The following is a translation of
Simon’s (1896)
description:*
Cephalothorax: Black, finely wrinkled, both sides clothed in downy whitish hairs, shiny golden-yellow medially. Abdomen: Narrow oblong, dark olive green on basal part (in mature specimens), covered with large spot on the back which is enlarged and shortened, with very shiny golden yellow setae, on apical part shiny golden yellow pubescent when mature but narrow and black near spinnerets, and in the middle a distinctive white spot, underneath in front whitish, at the back olive green, smaller when mature and on both sides covered with a pair of oblique whitish spots, in the region of the epigastric furrow leathery, black, near the edge two small indents. Sternum black, finely wrinkled, covered with small and minute white hairs. Claws arched, black, smoothly wrinkled. Tarsi ordinary, slender, front shiny, tibiae, except at apex, black, patellas with black lines on both sides, metatarsi 1 dark towards apex; four tarsi black at the back [referring to scopulae?], metatarsi reddish, tarsi yellowish-brown; tibias 1 with small spines 2–1, tibia 2 with 2 spines, all four metatarsi spined in front 2–2, armoured underneath. Pedipalps black, tarsus slightly brighter apically. – Northern
Abyssinia
.
Male
. Unknown.
Holotype
:^deposited in
MNHN
(examined). Two labels accompany the types: ‘
Abyssinia
,
E. Simon
, 3405 //
C. olivaceum
E.S.
’.
*On examination of the holotype of
C
.
olivaceum
and study of
Simon’s (1896)
description of the species made in Latin, it is clearly evident that the specimen has faded dramatically to an orange colour. Unfortunately, no fresh material of this Ethiopian species was available for examination. Consequently, a translation of the original description is provided, which will describe more accurately specimens found in nature. Where doubts arise as to the meaning of Simon’s wording, comments have been included in square brackets. Both second legs of the holotype are missing.
Fig. 18. Distribution of
Corinnomma
in the Afrotropical region.
Distribution: Currently known only from the
type
locality in
Ethiopia
.
Biology: Unknown.