A revision of the Australian species of Howickia Richards (Diptera: Sphaeroceridae: Limosininae)
Author
Kuwahara, Gregory K.
0000-0002-0319-2672
gkuwahar@uoguelph.ca
Author
Marshall, Stephen A.
0000-0002-5732-9718
samarsha@uoguelph.ca
text
Zootaxa
2022
2022-10-03
5192
1
1
152
http://dx.doi.org/10.11646/zootaxa.5192.1.1
journal article
157781
10.11646/zootaxa.5192.1.1
8e2cc009-d580-4904-a0b7-9ed7a9e3ab9e
1175-5326
7138639
236A609B-8A6A-47D7-9BB9-E2FDCA5C37E5
Howickia truncata
(Papp)
comb. nov.
Apterobiroina truncata
Papp, 2021: 107
.
Description.
Body length:
Females
2.1–2.2 mm
.
Head:
Yellow; gena yellow; antenna yellow. Three pairs of medium-large interfrontal bristles; 2 lateroclinate orbital bristles, anterior bristle 0.6x length of posterior bristle. Gena broad and strongly broadened posteriorly; palpus clavate with a small apical seta.
Thorax:
Black. One pair of dorsocentral bristles. Scutellum black, semicircular, its length 0.5x its width; 4 scutellar bristles long.
Legs:
Black. Female mid tibia with a minute apicoventral bristle. Basal half of mid tibia with 2 dorsal bristles (1 anterodorsal and 1 posterodorsal), distal half with 2 dorsal bristles (1 anterodorsal and 1 posterodorsal).
Wing/halter:
Halter absent.
Male abdomen
: Male unknown.
Female abdomen:
Black, heavily sclerotized, heavily microtrichose. Preabdomen subequal in length to head + thorax. Epiproct pentagonal dorsomedially bearing a pair of setae. Cercus long, subtriangular with several long sinuate setae and several smaller setulae. Hypoproct (as can be seen in Papp’s illustration) broad, moderately sclerotized, posteriorly microtrichose with a row of setae. Spermathecae stout, spherical and finely grooved; single spermathecal stem short (0.3x length of spermatheca), paired spermathecal stem shorter (0.2x length of spermatheca) and closely associated, both with an enlarged “bulb” just below the stem.
Type material.
Holotype
:
AUSTRALIA
:
New South Wales
:
Mount Wilson
,
pitfall traps
, No.1179,
24.vii.1978
,
G. Hangay
(
♀
,
HNHM
).
Paratypes
:
AUSTRALIA
:
New South Wales
:
same data as holotype (
1 ♀
,
HNHM
)
.
Comments.
The generic placement of
H. truncata
is tentative in the absence of male specimens but
Papp’s (2021)
description and illustrations of female terminalia show apparent synapomorphies with other species of
Howickia
, such as telescopic genitalia, a pentagonal epiproct bearing two dorsal setae, and stout spermathecae similar in structure to those of
H. truemani
. The above brief description of
H. truncata
is based entirely on
Papp (2021)
.