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 anthrax
Janssens, 1957
Figs 12E–H
,
16
Euscelidia anthrax
Janssens, 1957: 2
; Oldroyd 1974: 20 1980: 356.
Diagnosis: The species is distinguished from congeners by the overall black coloration and dark wings.
Redescription:
Head:
Black; fc silver pruinose, fc gib distinct, mystax white, few macrosetae; oc tr apruinose; occ silver pruinose, brown setae dorsally and white setae ventrally;
Antennae
- scp and ped dark brown with brown setae, white pruinose; pped dark brown, white pruinose; apsel brown;
Thorax:
Black; sct predominantly apruinose, posterior margin and dorsad of wing base silver pruinose, white setae scattered on surface; macrosetae: black, 1 npl s, 1 spal s; sctl silver pruinose, ds sctl s and sctl s long, brown;
Legs
- brown and yellow, pro and meso fem brown, meta fem yellow proximally, brown distad, slightly clubbed; tib brown, meta tib with yellow stripe not reaching tip anteriorly; first tar as long as 3 following tar combined; emp about a third of length of clw;
Wings
- densely covered with microtrichia, dark brown; ptero indistinct, brown; cell d terminating in 3 veins; hlt light brown;
Abdomen:
Black; T brown pruinose in proximal 3/4, grey pruinose in distal quarter, T2–3 apruinose in proximal 2/3, T1 with black setae, T2 with long brown setae laterally, remaining T with short brown setae (on brown pruinose area) and white setae (on grey pruinose area); ơ
terminalia
Figs 12E–H
- sur broad, only slightly pointed, ventral margin straight; hypd ventral margin straight; gonst long; d aed shea tubular, medium length; lat apod simple.
Type material -
The ơ
holotype
has to be considered lost. I was unable to locate the depository for the type specimen.
Janssens
stated that the type is deposited in the
South African Institute
for
Medical Research
,
Pretoria
,
South Africa
.
The
collection is now part of the
NMSA
, but the specimen could not be found there.
However, I
did not designate a
neotype
since the concept of the species is clear and there is no ‘exceptional need’ for a designation as requested by the
International Code of Zoological Nomenclature
(article 75)
.
Type
locality and distribution (
Fig. 16
):
Botswana
,
Tsessebe,
20 45'S
27 34'E
.
Botswana, Malawi
,
South Africa
.
Material
examined:
MALAWI
: 2^^ 1ơ 1?
Mulanje
,
15 57'S
35 37'E
, 16+18+
21.iv.1913
;
SOUTH AFRICA
:
KwaZulu-Natal
:
1^
Dukuduku
,
28 22'S
32 24'E
,
7–8.iv.1960
;
Mpumalanga
:
3^^
Nelspruit
, 2530DB,
1–2.xii.1976
.
Depository
:
BMNH
,
NMSA
.