A review of Sri Lankan Brignolia including the description of four new species (Araneae: Oonopidae)
Author
Ranasinghe, U. G. S. L.
National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka.
lakmalisanky@gmail.com
Author
Benjamin, Suresh P.
National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka.
suresh.benjamin@gmail.com
text
Zootaxa
2016
2016-07-29
4144
4
451
476
journal article
10.11646/zootaxa.4144.4.1
62ac3536-4049-4b1f-9401-ccf352ffd71f
1175-5326
267497
FD69103F-9897-47E1-8256-924C99B670CF
Brignolia ondaatjei
sp. nov.
(
Figs.10
A–H; 11A–F; 12A–D)
Type material.
Holotype
male
(
IFS_Oon_227
):
Sri Lanka
,
Badulla District
,
Rawana Ella
, forest around cave,
6 °51’52.4”N
81°03’01.3”E
,
990m
,
27 June 2014
, leg.
N. Athukorala
,
S. Ranasinghe
, litter.
Paratype
:
1♀
(
IFS_Oon_228
): from same locality and data as the holotype.
FIGURE 9
.
Brignolia meemure
sp. nov.
Male. A, B. left palp, retrolateral view; Female. C. epigastric region, dorsal view; D. same, ventral view. lap, lateral apodemes; tpr, triangular epigynal projection. Scale bars = 0.1 mm.
Other material examined.
1♂
(
IFS_Oon_076
):
Sri Lanka
,
Uva Province
,
Badulla District
,
Ohiya
, 0
6°50’32”N
80°53’0 5”E
,
1280m
,
30 August 2011
, leg.
S. P. Benjamin
,
N. Athukorala
.
Etymology.
Named for
Sri
Lankan-born Canadian novelist and poet, Philip Michael Ondaatje best known for the “
The English Patient
” and our favorite “
Anils Ghost
”.
Diagnosis.
Males can be easily recognized by the hammer-shaped palpal tip and the small triangular projection at the base of the bulb (bpr in
Fig. 12
A). Females can be recognized by the narrowed posterior tube, with a rounded ending and the anteriorly directed, triangular-shaped projection (tpr in
Figs. 12
C, D).
Description.
Description based on all specimens listed above.
MALE
:
Body length 2.04. Coloration: carapace usually reddish-brown, sternum and mouthparts orangebrown, abdominal scuta reddish-brown, abdominal inter scutal region not visible, fully covered with dorsal and ventral scuta; legs pale orange; palps dark red-brown. Carapace: broadly ovoid in dorsal view (
Fig. 10
A), smooth, sides striated, pars cephalica strongly elevated in lateral view (
Fig. 10
B), anteriorly slightly narrowed, with angular posterolateral corners, posterolateral edge without spikes and pits, lateral margin straight, posterior margin squared (
Fig. 10
D). Clypeus: straight in front view (
Fig. 10
C). Eyes: six, well developed, ALE largest, oval, PME and PLE equal in size and oval. Labium: triangular shaped, fused to sternum, same as sternum sclerotization. Endite: distally not excavated, anteromedian part with stout projection, edges heavily sclerotized than sternum. Sternum: slightly longer than wide, decorated with round pits, radial furrows consisting with rows of small pits present between coxa I–II, II–III and III–IV (
Fig. 10
E). Abdomen: ovoid, dorsal scutum strongly sclerotized (
Fig. 10
F), cover full length of abdomen (
Fig. 10
G), no soft tissue visible from above, epigastric scutum strongly sclerotized, extend to pedicel region, scuto-pedicel region with W-shaped straight transverse ridge (
Fig. 11
C), book lung covers, nail-shaped (
Fig. 11
A), dark, oval without elevation, pedicel tube large with dorsolateral triangular extensions, pedicel region fully covered with fine setae (
Fig. 11
C). Postepigastric scutum strongly sclerotized, long, semicircular, covering most part of the area and fused to epigastric scutum, with short posteriorly directed lateral apodemes (
Fig. 11
A). Spinnerets scutum present (
Fig. 10
H), short setae present. Legs: spineless. Sperm pore: large, elliptical, situated in between anterior and posterior spiracles. Genitalia: palpal bulb with a hammer-shaped palpal tip (
Figs. 12
A, B) and a small triangular projection at the base of the palpal bulb (bpr in
Fig. 12
A).
FIGURE 10.
Brignolia ondaatjei
sp. nov.
, male from Badulla, Rawana Ella. A. carapace, dorsal view; B. same, lateral view; C. same, anterior view; D. same, posterior view; E. sternum, ventral view; F. abdomen, dorsal view; G. same lateral view; H. same, posterior view. sps, spinneret scutum. Scale bars = 0.2 mm.
FEMALE
:
Body length: 2.04, Coloration and somatic morphology same as male (
Fig. 11
E), pars cephalica strongly elevated in lateral view, squared posterior margin. Genitalia: posterior tube narrow, elongated, with rounded ending, triangular-shaped protrusion anteriorly directed from the posterior spiracular groove (
Figs. 12
C, D).
Intraspecific variation.
Color ranges from reddish-brown to orange-brown. Body length of males ranges from 1.90–2.04. One specimen (IFS_Oon_076) shows long setae on the chelicerae and some strong setae on the top of the carapace. Scuto-pedicel ridge slightly curved and anteriorly directed in some specimens (
Figs. 11
A–D).
Distribution.
Sri
Lanka
: Badulla District: Ohiya (L 30), Rawana Ella (L 50).