A new species of Acanthocaudus Smith (Braconidae: Aphidiinae), with a key to species and new host and distribution records for aphidiines associated with Silphium perfoliatum L. (Asterales: Asteraceae)
Author
Kula, Robert R.
Author
Johnson, Paul J.
Author
Heidel-Baker, Thelma T.
Author
Boe, Arvid
text
Zootaxa
2017
4236
3
543
552
journal article
36450
10.11646/zootaxa.4236.3.8
2f6559db-ce85-45f6-9627-d2e1074f1814
1175-5326
322303
769DF8D8-E48C-4ADA-8AF6-7D6D029C04DB
Acanthocaudus
Smith
(
Figs 1–7
)
Acanthocaudus
Smith 1944
: 96
[as subgenus of
Trioxys
Haliday
]. Type species:
Trioxys
(
Acanthocaudus
)
tissoti
Smith
[by original designation; USNM, examined].
Acanthocaudus
:
Mackauer 1960
: 138
[status revised to genus].
Diagnosis.
Acanthocaudus
can be differentiated from other genera of
Aphidiinae
with species in the Nearctic Region using data in the key to New World genera of
Aphidiinae
in van
Achterberg (1997)
: forewing without marginal and submarginal cells, tergum 1 and sternum 1 fused basally at least to level of spiracles, hypopygium of female with prongs, hypopygium of female with accessory prongs at base of hypopygial prongs, and female with at least terga 6–7 with subapical row of pegs or spines.
Distribution.
CANADA
:
British Columbia
(
Schlinger & Hall 1960
);
CUBA
:
Guantánamo
(as Oriente),
Pinar del Río
(
Starý 1981
);
USA
:
Florida
(
Smith 1944
),
Indiana
*,
South Dakota
(
Assefa
et al
. 2015
),
Wisconsin
(
Smith 1944
), and
Washington
(
Pike
et al.
2000
).
Hosts.
Aphis gossypii
Glover
,
Uroleucon
(
Uroleucon
)
ambrosiae
,
Uroleucon bradburyi
(Olive)
*,
Uroleucon
(
Lambersius
)
erigeronense
,
Uroleucon
(
Lambersius
)
gravicorne
,
Uroleucon
(
Uroleucon
)
rudbeckiae
, and
Uroleucon
(
Uroleucon
)
russellae
(see host sections for each species below for references to rearing records).