New Black Fungus Gnats (Diptera, Sciaridae) of North America. Part V. Genera Pseudolycoriella Menzel & Mohrig and Phytosciara Frey
Author
Mohrig, Werner
Author
Kauschke, Ellen
text
Zootaxa
2019
2019-01-07
4543
2
261
283
journal article
27703
10.11646/zootaxa.4543.2.5
7db5c952-59b4-4879-a8de-7709dfd725a0
1175-5326
2617811
2ADC51E4-F1C9-4905-98FE-9DAB01593C3D
Pseudolycoriella brevialata
sp. n.
(
Fig. 2 A
–
E
; Plate IV, Fig. VII)
Locus typicus
:
USA
,
Texas
, Sam Houston National Forest, Willis,
60 km
N of Houston.
Holotype
:
Male
,
3.–6.xi.1996
, leg.
W. Mohrig
,
yellow pan trap
(
PWMP
).
Paratypes
:
2 males
and
1 female
, same data as holotype (
PWMP
)
;
1 male
,
21.–23.vii.1997
,
USA
,
Virginia
, suburban settlement of Williamsburg, mixed forest,
yellow trap
, leg.
W. Mohrig
, (
PWMP
)
.
Description
. Male.
Head
: Round; eye bridge 2–3 facets wide. Antenna uniformly brownish, 4
th
flagellomere with a l/w index of 1.4, hairs shorter than the flagellomere width, flagellomere with a few deepened sensorial pits. Palpi short, 3-segmented, first segment with 1–2 bristles and a flat patch of sensillae. Mouth parts short.
Thorax
: Brownish; scutum with rather short and dark hairs, some lateral and prescutellar bristles longer. Scutellum with 4 more robust bristles. Postpronotum bare. Wing pale, short and wide; R
1
= 1/2 R; c = 3/4 w; y shorter than x, bare; M-fork as long as M-stem, narrow; CuA-stem shorter than x; posterior veins distinct, without macrotrichia. Haltere short, brown. Legs yellowish; tibial organ of fore tibia with an irregular row of bristles, not bordered. Claws finely toothed.
Abdomen
: Ventral base of hypopygium without lobe, inner margin of gonocoxites with short sparse hairs. Gonostylus apically rounded, densely haired at the apex, subapically with 2 fine spines not longer than the apical hair and with 1–2 short whiplash hairs. Tegmen as wide as high, apically rounded with a horseshoe-like structure. Aedeagus short with a large furca. Body length:
2.5 mm
.
Comments
. The species is characterized by a rounded and densely haired apex of the gonostylus with two short subapical spines and 1–2 short whiplash hairs.
Distribution
.
USA
(
Texas
,
Virginia
).