A revision of Laphyragogus KOHL, 1889, with description of a new species (Hymenoptera, Spheciformes)
Author
Schmid, Christian
text
Linzer biologische Beiträge
2022
2022-09-01
54
1
303
318
journal article
222447
10.5281/zenodo.7507504
74e79512-d83e-408c-a920-5768b0ad964b
0253-116X
7507504
Laphyragogus gessi
SCHMID- EGGER
nov
.
sp
.
(figs 3-10)
Holotype
: Oman: ♁
14.iii.2022
20 km W Barka
, Wadi Far
57.719N
23.760E
(leg. et coll
CSE
)
.
Paratypes
: United Arab Emirates: 8♁♁
20-30.iv.2015
Dubai
Desert
conservation Reserve
24.821N
55.615E
(leg.
Gess
, coll.
AM
and
CSE
)
;
1 ♀
1.iv.2015
UAE
;
Um
al-Quwain prov, Biatah,
25°25'N 57°47‘'E
(leg.
J. Halada
, coll.
J. Straka
)
;
Oman 1♁
3.iii.2019
Bidljah
, near industrial zone,
22.446N
58.861E
(leg. et coll.
Ali Al Jahdhami
).
1♁
14.iii.2022
20 km W Barka
, Wadi Far
57.719N
23.760E
(leg. et coll
CSE
)
.
D i a g n o s i s
L. gessi
belongs to the
L. ajjer
species group. The male is unique by the combination of short spines at S
6 in
combination with an all black mesonotum, mesopleuron and mesosternum. The female differs by a nearly all black face and mesosoma (only with a small spot each on clypeus, metanotum and on lateral backside of propodeum) from the markedly yellow spotted
L. ajjer
and
L. orientalis
. Body surface is in direct comparisation less shiny than in
L. orientalis
.
D e s c r i p t i o n o f m a l e h o l o t y p e: Body length 8,
1 mm
. Color: Black, light yellow are: clypeus, large spots in lower inner eye margin, space between clypeus and antennal sockets, small median line from antennal socket to midocellus, mandible except reddish apex,
AS
1-2, pronotum except black transverse medial band, pronotal lobe, narrow band on lateral margin of mesoscutum, scutellum except large medial black spot, metapleural flange, metanotum, propodeum laterally (with some red below white spot), large bands on underside of fore- and midfemora (remaining part of femora reddish), tibiae and tarsi (tibiae with some red above). T1-6 reddish with whitish apical band, half as wide as tergal length. T7 whitish, apex and triangular basal platform reddish. Coxa and sternites light reddish. Clypeus, face, mesopleuron and propodeum covered with dense and long silver semiappressed pilosity, mesonotum and frons above with sparser, but also long pilosity. Morphology: Mandibel medially below with small tooth. Mesoscutum basally finely microsculptured, basally smooth with very fine microsculpture and indistinct scattered punctation. Mesopleuron and propodeal dorsum grainlike microsculptured. Scutellum more shiny as mesoscutum, punctured. Tergites finely grainlike microsculptured. Midtarsomeres II and III strongly lobed apically. T7 with large triangular platform basally, apically truncate-rounded. Apical margin of S2-6 widely V-like emarginate. S6 laterally each with spine, as long as median diameter of hindbasitarsus, directed downwards. S7 laterally each with a small rounded impression. Genitalia strongly modified, see fig. 10.
Figs 7-12
: (
7
)
Laphyragogus gessi
, male, dorsal; (
8
)
Laphyragogus gessi
, male, midtarsus; (
9
)
Laphyragogus gessi
, male, apex of abdomen lateral; (
10
)
Laphyragogus gessi
, male, genital; (
11
)
Laphyragogus
kohli
, female from Iran, dorsal; (
12
Laphyragogus
kohli
, female from Iran, face.
V a r i a t i o n i n p a r a t y p e s: Male
paratypes
agree with
holotype
apart from minor variation in extension of yellow colour of mesosoma.
D e s c r i p t i o n o f f e m a l e: Body length
7.9 mm
. Colour: All black with the following parts whitish-yellow: small median spot in clypeus, apical two third of mandible (apex dark reddish), small band each on pronotum apcially and basally, small band on mesonotum in front of tegula, tegula, wing venation (wing venation in apical half of wing darker), metapleural flange, metanotum, small spot on propodeum laterally in hind corner, band on outer side of forefemur (half as long as femur), apex of mid- and hindfemora, upper side of tibiae, tarsi. Abdomen reddish, with large apical whitish band on T1 and T5, and some indistinct pale spots on following tergites. T6 reddish-yellowish. Face and propodeum covered with long, silver pubescence, at face appressed, at propodeum semi-erect. Tegula, wing base and wing venation yellow, wings transparent. Morphologically similar to
L. ajer
.
L i f e H i s t o r y: The
holotype
was collected on a flowering kapok bush (
Aerva javanica
, family
Amaranthaceae
) in a sandy habitat, belonging to coastal dunes.
D i s t r i b u t i o n:
United Arab Emirates
,
Oman
.
E t y m o l o g y: The species is named in honour to Sarah Gess from Grahamstown,
South Africa
, who collected the first specimens of the species.