Revision of the Lacinipoliavicina (Grote) complex (Noctuidae, Noctuinae, Eriopygini)
Author
Schmidt, B. Christian
text
ZooKeys
2015
527
103
126
http://dx.doi.org/10.3897/zookeys.527.9686
journal article
http://dx.doi.org/10.3897/zookeys.527.9686
1313-2970-527-103
3A7D6C6E78374B1FA82A0B6975E958B9
Taxon classification Animalia Lepidoptera Noctuidae
Lacinipolia vicina (Grote, 1874)
Figs 1-3, 55, 69
Mamestra vicina
Grote, 1874a: 156.
Mamestra imbuna
Smith, 1905a: 201, syn. rev.
Type material.
Mamestra vicina
: The type material of
Lacinipolia vicina
almost certainly consisted of two species, the eastern species known previously as
Lacinipolia imbuna
or
Lacinipolia teligera
(
Franclemont and Todd 1983
) and represented by a female syntype from Massachusetts (BMNH; examined), in addition to the widespread species previously called
Lacinipolia vicina
, represented by at least one syntype from St. Catherines, Ontario (lost). I was unable to locate any St. Catherines specimens, stated by Grote to have come from George Norman. Other syntypes from the Norman collection (
Crocigrapha normani
(Grote) and
Xestia normanianus
(Grote)) are also considered to be lost (D. Lafontaine pers. comm.). This is unfortunate since it would have been preferable to fix the name
vicina
as the widespread, well-known species here treated as
Lacinipolia sareta
, but as the only extant primary type, the following female specimen [BMNH] must be designated as lectotype: "
Mamestra
/
vicina
/ Type Grote" [red-bordered label];
"Type"
[round red-bordered label]; "
vicina
/ TYPE" [small handwritten label]; Grote Coll. / 81-116." [type-written label];
"U.S.America."
[type-written label]; "
Noctuidae
/ Brit. Mus. slide / No. 8237" [blue type-written label]. Type locality:
"Massachusetts"
.
Mamestra imbuna
: Male lectotype (AMNH; examined), designated by
Todd (1982)
. Type locality: Luzerne Co., Pennsylvania. The original type series of
Mamestra imbuna
probably also included
Lacinipolia sareta
from the southern Lake Michigan region, as
Smith (1905a)
mentions an August specimen from Hessville, Indiana (a suburb of Chicago), but
Todd's
lectotype designation fortunately restricts the concept of the name.
Diagnosis.
Within the eastern North American range of
Lacinipolia vicina
,
Lacinipolia sareta
is most similar but the two can usually be separated without dissection by the more southern distribution, larger size and bivoltine spring / fall flight (April-May and September - October) of
Lacinipolia vicina
(univoltine from late June to early August for
Lacinipolia sareta
). In the male genitalia,
Lacinipolia vicina
differs most obviously in the arrangement of the spines above the juxta, consisting of two lateral and one medial field of ventrally projecting spines, whereas in
Lacinipolia sareta
the spines are directed dorsally and are on the inside of a large, rhomboid plate. Females of
Lacinipolia vicina
have an asymmetrical, invaginated ostium, like the opening of a conch, compared to a simpler ostium with a convex prevaginal plate margin in
Lacinipolia sareta
.
Although
Lacinipolia vicina
is most closely related to
Lacinipolia teligera
,
Lacinipolia vicina
and
Lacinipolia teligera
are not likely to be confused given the range disjunction and more extensive dark fuscous shading of the hindwing in
Lacinipolia vicina
. The male genitalia differ in the shape of the clasper, with the apical lobe narrower and more pointed in
Lacinipolia vicina
, and the thumb-like lobe situated one third the distance from the base, compared to halfway in
Lacinipolia teligera
.
Distribution and biology.
Specimens of
Lacinipolia vicina
were examined from Massachusetts, New York, Pennsylvania, Virginia and North Carolina (Fig. 69);
Forbes (1954)
also cites New Jersey (Lakehurst) and Indiana records. The Indiana record (
Smith 1905a
) may be erroneous given the long-standing confusion with
Lacinipolia sareta
, as discussed in the "Type material" section above. Eastern Ohio records of
Lacinipolia teligera
from May and September given by
Rings et al. (1992)
are most likely
Lacinipolia vicina
.
Moore's
(1955)
records for Michigan probably all apply to
Lacinipolia sareta
based on flight dates and the widespread distribution of
Lacinipolia sareta
in the Great Lakes region. There is no clear indication of habitat preference; in North Carolina
Lacinipolia vicina
occurs in open oak-hickory forest (B. Sullivan pers. comm.). Despite the relatively broad distribution and apparent lack of specialized habitat requirements,
Lacinipolia vicina
records are few.
Lacinipolia vicina
is apparently bivoltine, flying in spring (
April-May
) and in late summer to early fall (late August to early October), with later dates farther south. The larvae were described and illustrated by
Godfrey (1972)
(reared vouchers examined; CUIC), and are probably polyphagous ground dwellers like other
Lacinipolia
(
Wagner et al. 2011
).
Remarks.
As defined here,
Lacinipolia vicina
is the same species later described by
Smith (1905a)
as
Mamestra imbuna
, differing considerably in morphology from both
Lacinipolia sareta
(=
vicina
of authors) and
Lacinipolia pensilis
, although more closely related to the latter.
Lacinipolia imbuna
was previously treated as a junior synonym of
Lacinipolia teligera
(
Franclemont and Todd 1983
).