Rearing mining flies (Diptera: Agromyzidae) from host plants as an instrument for associating females with males, with the description of seven new species
Author
Guglya, Yuliia
text
Zootaxa
2021
2021-08-03
5014
1
1
158
http://dx.doi.org/10.11646/zootaxa.5014.1.1
journal article
10.11646/zootaxa.5014.1.1
1175-5326
5158589
63EEF5A6-EAE0-438F-87BC-AF5806BD3641
Phytomyza veronicicola
Hering
(
Figs. 278–283
,
674–679
)
Material examined:
Ukraine
:
Kharkiv Region
:
near
Petrivske
,
49°10’N
,
36°58’E
,
17.vi.2019
,
17.vi.2020
,
3– 16.vii.2020
and
24.vii.2011
,
Yu. Guglya
, ex
Veronica longifolia
(
6♂
3♀
)
;
Sumy Region
:
Kuzemin
,
The National Nature Park
”Getmanskyi”,
50°08’N
,
34°40’E
,
22.v.2010
and
29.v.2011
,
Yu. Guglya
(
3♂
)
.
Hosts.
Plantaginaceae
:
Veronica
L. (
Benavent-Corai
et al
. 2005
).
Mine.
The larva initially forms an upper surface secondary blotch mine (
Fig. 278
), later moving to the underside of the leaf and feeding as an epidermal miner (
Fig. 279
). The fully developed mine appears silvery-green from the underside and yellowish from the upper side of the leaf. Pupation takes place within the mine on the underside of the leaf (
Fig. 280
).
Puparium.
(
Figs. 281–283
) Beige, translucent, with brown anterior and posterior spiracles, 2.0 mm long, with distinct segmentation; surface finely wrinkled except for wide bands of minute spines. Posterior spiracles set on short, stout, conical protuberances and entirely separate; with 13 sessile bulbs set arranged in an open ring. Anal plate not protruding above the surface of the puparium viewed from the side and directed posteriorly.
Cephalopharyngeal skeleton.
(
Fig. 674
) Mouthhooks equal in size, each bearing two accessory teeth. Intermediate sclerite long, slightly curved, with small, sharp protuberance located ventrally; sclerite 1.24× as long as maximum height of mouthhook. The mouthhook and intermediate sclerite are strongly sclerotized and the pharyngeal sclerite much less so. The ventral cornu bears a narrow “closed” window located posteriorly. Indentation index 83.
Female head.
(
Figs. 675, 676
) Dark yellow, with only antenna, palpus and postgena black; orbit projecting above eye in profile; 2 orb s, 1 fr s; lunule of medium height, broad, semicircular, not reaching the level of fr s; pped large, rounded; arista distinctly widened only in basal third; gena medially 0.37× as high as maximum height of eye.
Female genitalia.
(
Figs. 677–679
) Capsule of spermatheca medium-sized, 0.27× as high as height of anterior part of oviscape. Spermathecae equal in size, dark brown, oval, higher than wide, with surface corrugated. Internal duct invagination trapezoid, 0.68× as deep as height of spermatheca. Spermathecal duct weakly sclerotized. Ventral receptacle compressed S-shaped, with well sclerotized tail that is bowl-shaped basally. Body of receptacle cylindrical with slightly curved, stout basal connecting tube, strongly sclerotized, 0.3× as wide as capsule of spermatheca; with narrow opening located on high cylindrical projection, 0.75× as wide as maximum diameter of spherical part of body.
Distribution.
The
Czech Republic
,
Germany
,
Hungary
,
Lithuania
,
Poland
,
Switzerland
,
Turkey
(
Papp & Černý 2019
).
Ukraine
(first record).
Comments.
Superficially
P. veronicicola
is similar to
P. crassiseta
Zetterstedt
, which also develops in leaf mines on
Veronica
species.
Spencer (1976)
and
Papp & Černý (2019)
noted a lanceolate arista as a distinctive fea- ture of
P. crassiseta
, but in specimens from
Ukraine
only
three females
have a lanceolate arista and others have only thickened ones, indistinguishable from the basally thickened arista of
P. veronicicola
. However, in all specimens of
P. veronicicola
areoles of the frontal setae are yellow and those of the orbital setae are slightly darkened (
Fig. 675
), whereas all
P. crassiseta
have a black spot at the base of all fronto-orbital setae (
Figs. 673
). Thus, colour of the areole is an additional reliable diagnostic feature.