New records of biting and predaceous midges from Florida, including species new to the fauna of the United States (Diptera: Ceratopogonidae)
Author
William L. Grogan, Jr.
Author
Hribar, Lawrence J.
Author
Murphree, C. Steven
Author
Cilek, James E.
text
Insecta Mundi
2010
2010-10-15
2010
147
1
59
journal article
10.5281/zenodo.5352908
1942-1354
5352908
Stilobezzia
(
Eukraiohelea
)
elegantula
(Johannsen)
Bezzia elegantula
Johannsen, 1907: 109
(
Kansas
)
.
Probezzia elegantula
:
Malloch 1914a: 137
(combination).
Parabezzia elegantula
:
Malloch 1915a: 359
(combination).
Parabezzia
(
Eukraiohelea
)
elegantula
:
Johannsen 1934: 345
.
Eukraiohelea elegantula
:
Johannsen 1943: 781
(combination).
Stilobezzia
(
Eukraiohelea
)
elegantula
:
Wirth 1953a: 62
(revision of
Nearctic
Stilobezzia
);
Wilkening et al. 1985: 525
(
Florida
records);
Wirth and Spinelli 1992a: 343
(review of
New World
Eukraiohelea
)
;
Borkent and Grogan 2009: 22
(in
Nearctic
catalog; distribution)
.
Stilobezzia
(
Eukraiohelea
)
maculitibia
Lane and Forattini, 1956: 207
(
Panama
)
;
Wirth and Spinelli 1992a: 344
(synonym of
S. elegantula
).
Discussion.
Wirth and Spinelli (1992a)
only listed specimens they examined and identified as
S. elegantula
from Alachua, Orange, Putnam and Sarasota counties in
Florida
. However,
Wilkening et al. (1985)
listed this species from Alachua, Bay, Citrus, Dade and Hillsborough counties, but, their records from the latter four counties probably represent specimens of
S. amnigena
. We examined approximately 150 slide-mounted specimens in the FSCA as well as
two females
and
two males
in WLG’s collection from Alachua Co.,
Florida
and a male from Prince Georges Co.,
Maryland
that were labeled by Wirth as
S. elegantula
, and, all except
one female
appear to be that species. This female plus the
two females
and
two males
from Alachua Co. and the
Maryland
male are actually examples of
S. amnigena
. As noted by
Wirth and Spinelli (1992a)
, males of both species have distinctive differences in their genitalia, but are otherwise very similar morphologically.
Wirth and Spinelli (1992a)
provided the wing length of a male
S. elegantula
as 1.25 mm, and we measured
36 males
of this species from Alachua Co. with a mean wing length of 1.21 mm and range of 1.15-1.27 mm. However,
two males
from Alachua Co. and one
Maryland
male of
S. amnigena
had a mean wing length of 1.62 mm and range of 1.53-1.69 mm. Therefore, it is now apparent that males of
S. amnigena
are considerably larger than those of
S. elegantula
, and this is apparently a distinct morphometric difference between males of these otherwise very similar species.