The biting and predaceous midges of Guadeloupe Diptera: Ceratopogonidae). I. Species of the subfamily Ceratopogoninae
Author
William L. Grogan, Jr.
Author
Spinelli
Author
Ronderos, María M.
Author
Carla
text
Insecta Mundi
2013
2013-10-11
2013
324
1
21
journal article
10.5281/zenodo.5178313
1942-1354
5178313
442766FB-22D8-4ED3-B014-B81A83BC6A8D
Parabezzia florentinae
new species
(
Figs. 1-4
,
20
)
Diagnosis.
The only Neotropical species of the
Parabezzia uncinata
group with females having unequalsized tarsal claws, tarsomeres 5 without ventral swellings, tarsal claws of fore and mid legs long and distinctly unequal-sized, the longest talon of hind claws 1.6 x longer than shorter talon and a wing with setae of the costal fringe uniformly distributed.
Female.
Head (
Fig. 1
). Dark brown. Eyes separated by V-shaped space equal to diameter of 1.5 ommatidia at level of interocular seta. Antennal flagellum uniformly brown; antennal ratio 1.10. Clypeus with 12 slender setae. Palpus brown; segment 3 with a few capitate sensilla on inner mesal surface; palpal ratio 3.25. Mandible with 9 coarse apical teeth on inner margin. Thorax. Uniformly dark brown. Scutum with 2 presutural, 5 posterolateral setae. Femora, tibiae dark brown, tarsi (
Fig. 2
) pale, tarsomeres 5 without ventral swelling; relative proportions of larger/smaller talons of fore, mid and hind claws (
Fig. 20
) respectively: 54/37-58/35-35/20; LC/T ratios (fore, mid, hind legs) 1.06-1.16-0.85. Wing (
Fig. 3
) length
0.88 mm
; breadth
0.40 mm
; membrane slightly infuscated, covered with fine macrotrichia; veins brown; wing sections 53-45-15, R
3
65; veins M
1
, M
2
, CuA
1
, CuA
2
barely reaching wing margin; one seta on costa proximad of basal arculus; costal fringe long, setae uniformly distributed along the entire costa, distally the setae arising from vein margin; costa extending 0.98 of wing length. Halter pale brown. Abdomen (
Fig. 4
). Brown. Two ovoid, slightly unequal spermathecae with very short necks, measuring 64 by 59
μ
m, and 59 by 48
μ
m.
Male.
Unknown.
Distribution
.
Guadeloupe
; known only from the
type
locality on Basse Terre.
Type material.
Holotype
female labeled “
Guadeloupe
,
Basse Terre
,
La Trace du Petit-Malendure
,
21-V- 2012
,
R
.
H. Turnbow
,
BL Trap
” (deposited in
FSCA
).
Derivation of specific epithet.
This species is named after our good friend and colleague, Florentina Díaz, in recognition of her valuable contributions to the taxonomy of Patagonian
Ceratopogonidae
.
Discussion.
In the Neotropical key in
Spinelli and Grogan (1987)
, this new
Guadeloupe
species keys to couplet 16 near
P
.
raccurti
Spinelli and Grogan
, the females of which differ from our new species in having three posterolateral setae on scutum, legs including tarsi uniformly brownish, shorter equalsized fore claws, shorter greatly unequal-sized hind claws, the wing has a longer radial cell and the costa extends to the wing tip, the anterior portion of the costal fringe is sparse and vein M
1
is more sinuous. In the Nearctic key in
Grogan and Wirth (1977)
,
P
.
florentinae
keys to couplet 13 near
P
. e
upetiolata
Grogan and Wirth, known only from the
holotype
female,
allotype
male and
two male
paratypes
from extreme northeastern New York. As in females of this new species from
Guadeloupe
, females of this Nearctic species also have five scutellar setae and a similar wing, but, it otherwise differs in having more slender, slightly longer unequal-sized claws with the hind pair much smaller than the fore and mid pair, and the wing has a shorter costa (Costal ratio 0.95 vs.
0.98 in
Guadeloupe
female). However, this Nearctic species is likely to be a boreal species, and therefore, we consider it highly unlikely that it is conspecific with our new species from
Guadeloupe
.
Clastrier and Raccurt (1979)
described four new species of
Parabezzia
from
Haiti
, and these are the only previous records of this genus from the Caribbean region. This new
Guadeloupe
species is a member of the
Parabezzia uncinata
group as defined by
Grogan and Wirth (1977)
in their revision of the Nearctic species and by
Spinelli and Grogan (1987)
in their revision of Neotropical species. This is the first record of this predaceous genus from
Guadeloupe
.