New species of Afrotropical Dryinidae (Hymenoptera: Chrysidoidea), with description of a new genus and a new subfamily
Author
Olmi, Massimo
text
African Invertebrates
2007
2007-12-31
48
2
199
232
journal article
10.5281/zenodo.7667812
2305-2562
7667812
Dryinus irwini
sp. n.
Fig. 14
Etymology: This species is named after Dr Michael E. Irwin.
Description:
Female
.
Fully winged; length
4.06 mm
. Head testaceous-reddish, with anterior third of face and clypeus testaceous; antennae testaceous reddish; prothorax testaceous-reddish; rest of mesosoma black; gaster and legs testaceous-reddish. Antennae clavate; antennal segments in following proportions:6:6:30:14:12:9:8:7:6:8. Head dull, excavated, granulated, with face sculptured by numerous longitudinal striae; frontal line complete; occipital carina complete; occiput excavated; POL = 2.5; OL = 2.5; OOL = 11; OPL = 1; TL = 5; greatest diameter of posterior ocelli = 2. Pronotum dull, granulated, crossed by slight anterior transverse impression and strong posterior transverse furrow; disc humped; posterior collar short; pronotal tubercles not reaching tegulae. Scutum, scutellum and metanotum hairy, dull, granulated and reticulate rugose. Notauli absent. Propodeum dull, reticulate rugose, without transverse or longitudinal keels. Forewing hyaline, with 2 distinct dark transverse bands; distal part of stigmal vein longer than proximal part (16:5). Fore tarsal segments in following proportions: 18:2:6:14:23. Enlarged claw (
Fig. 14
) with large subdistal tooth and row of 13 lamellae. Segment 5 of front tarsus (
Fig. 14
) with 2 rows of approximately 28 lamellae; distal apex of segment 5 with group of about 18 lamellae. Tibial spurs 1, 1, 2.
Male
. Unknown.
Holotype
: ^“
SOUTH AFRICA
:
Eastern Cape
,
37 km
NW Willowmore
,
Grootrivierberg Range
,
33
°
11.46'S
:
24
°
09.51'E
, alt.
700 m
,
19–24.xi.1999
,
Malaise trap
,
M.E. Irwin
et al.
”; [red] “
Dryinus irwini
sp. n.
M. Olmi
det. 2006, ^” (CNCI).
Hosts: Unknown.
Comparison:
D. irwini
belongs to
D. ugandanus
group. The female of this new species is similar to that of
D. pseudoafer
Olmi, 1993
. The main differences are the following: in
D. pseudoafer
, head completely granulated, scutellum granulated, forewing with 2 slight dark spots; in
D. irwini
, head granulated, with face sculptured by numerous longitudinal striae, scutellum reticulate rugose, forewing with two distinct dark transverse bands.