The Porricondylini (Diptera: Cecidomyiidae: Porricondylinae) of Sweden revisited: descriptions of nineteen new species of ten genera, including a new genus
Author
Jaschhof, Mathias
Author
Jaschhof, Catrin
text
Zootaxa
2020
2020-01-22
4728
2
151
182
journal article
24288
10.11646/zootaxa.4728.2.1
15784c76-41dc-47a2-aad7-db1b284033d1
1175-5326
3621083
3E13B249-1123-4CA9-85BE-62C5F2835B21
Porricondyla pallidigenae
sp. nov.
Figs 42–43
Diagnosis.
This small-size
Porricondyla
is another member of species group C. The gonostylar tooth of
P. pallidigenae
is serrate (
Fig. 42
, ↓
2
), a peculiarity shared only with
P. serrulata
Jaschhof
, also in group C, and no other
Porricondyla
. Unlike in
P. serrulata
(
Jaschhof & Jaschhof 2013
: fig. 113), the gonocoxal emargination of
P. pallidigenae
is strongly and extensively sclerotized basally (↓
3
); the medial gonocoxal bridges are unmodified (i.e. lack protuberances with thick setae); and the parameres are thin and entire apically (↓
4
) (not broadened and serrate). The extensively unpigmented genae giving
P. pallidigenae
the name provide an eye-catching feature, which is similarly found in several other
Porricondyla
, though. Females and larvae of this new species are unknown.
Other male characters.
Body size
1.2–1.4 mm
.
Head.
Eye bridge 1–2 ommatidia long at vertex. Antenna longer than body. Scape and pedicel concolorous with flagellum. Circumfila on flagellomeres 1–7. Neck of fourth flagellomere 1.2 times as long as node (
Fig. 43
). Palpus slightly longer than head height, 4 setose, subcylindrical segments, apical segment longest of all.
Thorax.
No scutal windows. Pronotum with 1–4 setae; anepisternum nonsetose; anepimeron with 1–3 setae.
Wing
about as long as body. Length / width ratio 3.2. Setae on proximal half of membrane sparse. M
1+2
absent. M
4
extremely weak. Hind fork incomplete.
Legs.
Foreleg: femur 0.9 times the length of tibia, tibia 0.6 times the length of T
2
. Claws toothless. Empodia broad, slightly longer than claws.
Genitalia
(
Fig. 42
). Gonocoxal synsclerite: setae largely confined to ventrolateral and dorsal portions; ventral emargination small, shallow, bordered by weak, membranous processes; dorsal apodemes short. Gonostylus dorsoventrally flattened, outline subtriangular seen from ventrally; 1–2 long bristles subbasally. Parameres crossing each other apically; a narrow transverse bridge subbasally. Aedeagal apodeme nearly as long as gonocoxae; rodlike portion moderately sclerotized; apical portion weakly sclerotized, broadened, with indistinct contours. Ducts of accessory glands barely discernible.
Etymology.
The species epithet, meaning ̒with pale cheeks’, refers to the partially unpigmented head capsule found in this species.
Type material.
Holotype
.
Male
,
Sweden
,
Småland
,
Alsterbro
, backyard,
15 July–19 August 2016
,
Malaise trap
,
M. & C. Jaschhof
&
S.-O. Ulefors
(spn.
CEC
2281 in
NHRS
)
.
Paratypes
.
1 male
, same data as the holotype (spn.
CEC
2282 in
SDEI
)
;
1 male
,
Sweden
,
Östergötland
,
Odeshög
,
Omberg
,
Stocklycke
äng, meadow on limestone,
25 May–8 June 2003
,
MT
,
SMTP
(trap 13, collecting event 909) (spn.
CEC
2283 in
NHRS
)
;
1 male
,
Sweden
,
Öland
,
Mörbylånga
,
Skogsby
,
Station Linné
, swampy meadow next to willow scrub,
5 July–4 August 2016
,
MT
,
MCJ
&
E.
Gustavsson
(spn.
CEC
2284 in
SDEI
)
.