Revision of the genus Euscelidia Westwood, 1850 (Diptera: Asilidae: Leptogastrinae)
Author
Dikow, Torsten
text
African Invertebrates
2003
2003-12-31
44
2
1
131
journal article
10.5281/zenodo.7911189
2305-2562
7911189
Euscelidia insolita
sp. n.
Figs 40
, 41
Etymology:
Latin adjective
insolitus
= unusual, uncommon, odd; refers to the unusual shape of the aedeagus.
Diagnosis: The species is distinguished from congeners by the large size, predominantly apruinose sct, and features of the ơ terminalia (d aed shea
Fig. 40
).
Description:
Head:
Black; fc yellow pruinose, fc gib indistinct, mystax white, many macrosetae; prob and plp brown, setae white; oc tr pruinose dorsally; occ silver pruinose, setae white;
Antennae
- scp brown, white setae ventrally, white pruinose; ped brown, brown setae ventrally and dorsally, white pruinose; pped brown, white pruinose; apsel brown.
Thorax:
Black; ppro peg large, silver pruinose; sct predominantly apruinose, yellow pruinosity restricted to anterior, lateral, and posterior margins, yellow setae on pruinose area, few scattered on apruinose part; macrosetae: 1 white npl s, 1 white or black spal s; sctl silver pruinose, ds sctl s and sctl s long, yellow;
Legs
- yellow to brown; fem light brown, meta fem pale yellow proximally, clubbed, club with brown lateral stripe; tib light brown, brown stripe dorsally, pale yellow stripe not reaching tip anteriorly; first tar yellow, brown distad, remaining tar brown, setae black; emp about a quarter of length of clw;
Wings
- densely covered with microtrichia, brown stained, veins brown; ptero distinct, brown; cell d terminating in 2 veins; hlt light brown.
Abdomen:
Black; grey pruinose, distal T more brown pruinose dorsally, T1 with long yellow setae laterally, T
2 in
proximal half with white setae laterally, remaining T with short white and yellow setae, S grey pruinose; ơ
terminalia
Fig. 40
- sur pointed distally, lobe ventrally; hypd ventral margin straight; d aed shea proximally plate-like, distally with 4 lateral narrow lobes, dorsally with separate structure covering ductus ejaculatorius, medium length; lat apod bifurcated.
A B C
D
Fig. 40. ơ terminalia of
Euscelidia insolita
sp. n.
A. Dorsal. B. Ventral. C. Lateral. D. Aedeagus lateral. Scale line = 1 mm.
Type material - The ơ
holotype
is labelled ‘Elisabethville [Lubumbashi]
Congo Belge
Dr, M. Bequaert 20-I-35 [
20.i.1935
] (date handwritten on backside of label) / R.I.Sc.N.B. 24.236 Coll. M. Bequaert / E. Janssens det., 1955
Euscelidia Datis
Walker
(handwritten except for ‘E. Janssens det., 195’) /
HOLOTYPE
Euscelidia insolita
sp. nov.
det. T. Dikow 2001 (red label)’. The specimen is directly mounted, is in very good condition (right meta leg broken; ơ terminalia attached to specimens pin in micro vial), and is deposited in the ISNB.
Two
^
paratypes
are labelled ‘
Elisabethville
[Lubumbashi]
Congo Belge
Dr, M
. Bequaert 20-I-35 [
20.i.1935
] (respectively
mars 1934
[
Mar 1934
]) (date handwritten on backside of label) /
R.I.Sc.
N.B. 24.236
Coll. M. Bequaert
/
PARATYPE
Euscelidia insolita
sp. nov.
det.
T. Dikow
2001 (yellow label)’.
The
specimens are directly mounted, are in good condition (
1 specimen
with left meta leg broken;
1 specimen
with right meta leg and abdomen broken that is attached to specimens pin on piece of cardboard), and are deposited in the
ISNB
.
Type
locality and distribution (Fig. 41):
DR Congo
,
Lubumbashi (former Elisabethville), 1139'S
27 28'E
.
DR Congo
.