The first record of the genus Paralimosina L. Papp (Diptera: Sphaeroceridae) in the Afrotropical Region, with descriptions of six new species
Author
Papp, László
text
African Invertebrates
2013
2013-07-16
54
2
315
315
http://www.bioone.org/doi/abs/10.5733/afin.054.0202
journal article
10.5733/afin.054.0202
2305-2562
7649596
Paralimosina australis
sp. n.
Figs 19–30
Etymology: From the Latin
australis
(southern).
Description:
Measurements in mm: body length 2.70 (
holotype
), 2.56–3.15 (
paratypes
), wing length 2.28 (
holotype
), 2.08–2.46 (
paratypes
), wing width 1.06 (
holotype
), 0.98–1.26 (
paratypes
).
Body and legs brown, tarsi dirty ochre, antennae dirty red.
Frons with distinct M-shaped mark (silvery on dark brown). Lunular triangle and face shiny dark brown, occiput dark brown. Three or four pairs of almost evenly long
ifr
plus short anterior pair (
holotype
with 3 long
ifr
pairs on the right side, left side with 4 pairs plus a 9
th
thinner seta). Height of gena below eye
0.18 mm
, longest axis of eye
0.34 mm
, vertical diameter
0.28 mm
. Upper 0.6 of gena longitudinally hachured. Genal seta emerges
0.09 mm
above mouth margin,
0.15 mm
long. Anterior
fr-orb
(
0.15mm
) only half as long as posterior one (
0.31 mm
). Medial seta of scape
0.11 mm
long. First flagellomere with cilia
0.025 mm
in length. Aristal cilia
ca
0.015 mm
.
Mesonotum dark microtomentose, i.e. not shiny. Acrostichals short and dense. Anterior
dc
only
0.11 mm
long. Anterior katepisternal seta not discernible, posterior pair
0.32–0.34 mm
long. Wing light brown, veins including costa slightly darker brown. Second costal section
0.91 mm
, third costal section
0.69 mm
, costal index 1.32. Basal costal seta
0.14 mm
. M-M slightly infuscated. Lower edge of discal cell, i.e. M
3+4
distal appendage, only
0.13 mm
long. R-M–M-M distance
0.28 mm
, M-M
0.18 mm
long.
Male fore coxa with long dense hairs medially. Male mid tibia ventrally with a row of thick, black, thorn-like spines (
0.05 mm
in length) on apical half but having only a few long hairs there (at most
0.12 mm
). Male mid tibia with a medium-length (
0.08 mm
)
va
. Mid tibia with
ad
at 9/53 (small), 12/53 (medium length), 20/53, 27/53 (both long), 33/53 and 41/53 (longest,
0.14 mm
);
pd
at 13/53, 24/53 and 40/53 (longest,
0.21mm
).
Abdomen shiny black. Longest lateral marginal setae on male abdominal tergite only
0.25 mm
. Male S5 (
Fig. 23
) rather long (but much shorter than that of
P. paraustralis
), with a very short medio-caudal extension lacking a seta. That medio-caudal part is only slightly more melanised. S6 part of synsternite (
Fig. 28
) rather large, comparatively long and broad, on the right side distinct sclerotised and melanised sclerites join it (‘right side sclerites’, see Papp (2008)). Those less formed sclerites are almost perpendicular to the abdominal axis (and join broadly, although membranously, also to S5). S7 part of synsternite large, with short thin setae on all of its surface. S8 part of synsternite small. Hypandrial arms rather short and slightly curved; medial part strong, with a sagittal ridge and an anteriorly curved asymmetrical process (
Fig. 25
). Subepandrial sclerite rather narrow (
Fig. 24
), its body only
0.07–0.08 mm
high, ventral processes comparatively short and thick. Cercal lobes of epandrium very small. They can be regarded as reduced, with sagittal connection of the epandrial complex very low (
Fig. 24
). Surstylus with very large anterior lobe being an intricate structure: anterior and dorsal parts less strongly sclerotised (
Fig. 29
). Posterior lobe of surstylus (
Fig. 29
) much smaller; strongly sclerotised and melanised, with numerous medium-length setae. Phallapodeme strong (
Fig. 26
),
ca
0.3 mm
long and almost straight in lateral view. Basiphallus (
Figs 26, 27
) short and high, ventral apex blunt and slightly curved. Distiphallus (
Fig. 26
) short, only
0.17 mm
, without conspicuous processes. Postgonite rather long (
0.22–0.23 mm
from apex to base), basal part not strongly broadened, clearly curved with blunt apex (
Fig. 30
). Ejaculatory apodeme (
Fig. 27
) discernible, but only
0.055 mm
long.
Figs 23–30.
Paralimosina australis
sp. n.
, male paratype, postabdomen and genitalia: (23) S5, ventral view; (24) cercal lobes and subepandrial sclerite, ventral view; (25) hypandrium, lateral view; (26) phallus and phallapodeme, lateral view; (27) basiphallus and ejaculatory apodeme, lateral view; (28) S6–7 parts of synsternite, ventral view; (29) surstylus, broadest (sublateral) view; (30) postgonite, lateral view. Scale bars: Fig. 23 = 0.4 mm, Figs 24–26, 28 = 0.2 mm, Figs 27, 29–30 = 0.1 mm.
Female abdomen
1.62 mm
long and
ca
1.14 mm
wide, without long lateral marginal setae. Desclerotised ‘window’ of T1+2 with a pair of less sclerotised, round plates. T5 only slightly broader than half the width of abdomen. S2 as broad as ⅔ of width of S3 (i.e.
0.35 mm
). S6 is
0.46 mm
long and
0.165 mm
wide. T8 (
Fig. 20
) subquadratic in lateral view, without medial process, with several short setae laterally. S8 (
Fig. 19
) rather long and rounded, with a pair of long setae laterally and having 7 or 8 short setae; anterior margin free of small hairs. Epiproct with a pair of long, more closely set setae (
Fig. 21
); lateral anterior edges free of small hairs. Cerci (
Fig. 21
) with a pair of very long (
0.21 mm
) apical setae and a somewhat shorter pair of medial subapical setae; a third pair of long lateral setae also present. Spermathecae (
Fig. 22
) globular, with short bulbous ducts.
A mature egg is cylindrical,
0.50 mm
long and
0.12 mm
thick.
Holotype
:
♂
SOUTH AFRICA
:
Eastern Cape
:
Hogsback
,
Wolf Ridge Road
,
32°35'42.2"S
26°56'51.3"E
,
1143 m
,
8.i.2007
,
L. Papp
&
M. Földvári
, from undergrowth along a small brook (
HNHM
).
Paratypes
:
SOUTH AFRICA
:
Eastern Cape
:
4♂
2♀
same data as for holotype (
HNHM
, abdomen and genitalia of
one male
dissected and stored in glycerol in a plastic microvial)
;
2♀
Hogsback forest
reserve,
32°36'S
26°56'E
,
1300 m
,
19.ii.1997
,
D. Barraclough
&
S. James
, inside indigenous forest (
NMSA
)
;
1♀
same locality but
20.ii.1997
,
Auckland forest
margins (
NMSA
)
;
1♀
Hogsback forest
reserve,
30°31'S
29°38'E
,
1900 m
,
14–16.xi.1995
,
D. Barraclough
, indigenous forest (
NMSA
)
;
1♀
Dwesa Nature Reserve
,
32°16'S
28°51'E
,
50 m
,
17–20.xi.1991
,
D. Barraclough
, indigenous forest margin (
NMSA
)
.
KwaZulu-Natal
:
2♂
1♀
Pongola Bush Nat. Res.
,
27°21'S
30°6'E
,
18.i.1995
,
B. Stuckenberg
, indigenous forest (
NMSA
)
;
1♂
2♀
Ingeli forest
reserve,
30°30'S
29°44'E
,
1240 m
,
17.ii.1997
,
D. Barraclough
&
S. James
, indigenous forest (
NMSA
)
.
Mpumalanga
:
1♀
Mt Sheba Nat.Res.
,
24°56'S
30°43'E
,
1155 m
,
3.iii.1995
,
D. Barraclough
, deep, shaded indigenous forest (
NMSA
)
.
MALAWI
:
1♂
Ntchisi
forest reserve, 1334
Ac
,
1500 m
,
J. Londt
&
B. Stuckenberg
,
3–4.xii.1980
, montane forest and woodland (
NMSA
)
.
BURUNDI
:
Kayanza Prov
.
:
1♀
Parc National de la Kibira
,
Rweguru Sector
,
2°55.320'S
29°30.067'E
,
21–26.xi.2010
,
2237 m
,
A. Kirk-Spriggs
, indigenous afromontane forest,
Malaise trap
(
BMSA
)
.