Revision of the Neotropical caddisfly genus Banyallarga (Trichoptera: Calamoceratidae)
Author
Prather Table Of Contents, Aysha L.
text
Zootaxa
2004
2004-02-18
435
1
1
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https://biotaxa.org/Zootaxa/article/view/zootaxa.435.1.1
journal article
4866
10.11646/zootaxa.435.1.1
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Banyallarga
(
Banyallarga
)
vicaria
(Walker)
Figs. 10
,
11
Hydropsyche vicaria
Walker 1852:114
[
Type
locality:
Venezuela
; BMNH; female].
Ganonema vicaraium
—
McLachlan 1871:127
[male]. —
Betten & Mosely 1940:218
[redescription of
type
].
Banyallarga vicaria
—
Flint 1983:77
.
Banyallarga testacea
Navás 1916:78
[Original
type
locality:
Colombia
,
Muzo
; collection
Appolinaris
, now lost?; male]. NEW SYNONYM.
NEOTYPE
:
VENEZUELA
:
Mérida
:
Parque Nacional Sierra Nevada
,
Mucuy Fish Hatchery
,
7 km
E Tabay
,
Queb. La Mucuy
,
2012 m
,
18.i.1994
,
Holzenthal Cressa
&
Rinc
—n, male (
UMSP000000021
;
UMSP
).
Walker (1852)
described
Hydropsyche vicaria
(Hydropsychidae)
from a female specimen.
McLachlan (1871)
described a male specimen from
Venezuela
, identifying the species as that described by Walker and recognizing
H. vicaria
as belonging to the calamoceratid genus
Ganonema
.
Navás (1916)
described two Colombian species,
testacea
and
crenata
, in a new genus,
Banyallarga
, and designated
testacea
as the type species of the genus. In a review of Neotropical calamoceratids,
Flint (1983)
recognized Walkerís species as belonging to the same generic unit as
B. testacea
, while from the wing venation illustrated, he placed
B. crenata
as a species of
Phylloicus
. The types of both Navás species were in the collection Appolinaris, and now are presumed lost (
Flint
et al.
1999a
). No other material identified as
B. testacea
is known. Therefore,
B. testacea
is known only from Navás's illustrations of the wings and a lateral view of the male terminalia. The latter illustration is highly generalized, and could pertain to a number of species, of which two,
B. columbiana
and
B. vicaria
, are found in the mountain range containing the original type locality of
B. testacea
,. Because of this potential confusion, I am designating a
neotype
(ICZN 1999, Article 75) for
B. testacea
, to define the species objectively.
Banyallarga vicaria
is the better known of the two species and therefore more appropriate for fixing the identity of
B. testacea
(
B. columbiana
being known only from the
holotype
, which is in poor condition), According to Article 67.1.2, (ICZN 1999),
B. testacea
,
as a junior synonym, remains the type species of
Banyallarga
.
Banyallarga vicaria
can be separated from
B. columbiana
by the lack of a sharp mesal ridge on the dorsal surface of male tergum X, the shallow notch of the apical margin, and the more pronounced apical tapering. From the similar
B. villosa
, it can be separated by the shallow, as opposed to deep, mesal notch on the apex of tergum X.
Adult. Forewing length 9.9–11.9 (n=97).
Head chestnut brown, with dorsomesal crest of dark and golden setae. Maxillary palps chestnut brown. Antenna twice forewing length, dark brown, each flagellomere pale basally and with narrow patch of pale sensilla on anterior surface. Dorsal pterothorax chestnut brown, golden brown mesally; ventrolateral thorax and legs golden brown, hind tibia of male without posterior fringe. Forewing mottled dark brown and gold, nygma, thyridium, and anal cell marked in gold. Hind wing of male with basal semimembranous sleeve or pouch, enclosing brush of long setae, female with thick basoposterior brush of golden setae.
Male. Tergum IX posterior margin rounded (
Fig. 10B
); lateral ridge present; dorsal pleural setae approximately 15; sternum IX with heavy anterior ridge. Preanal appendage shorter than tergum X, tapered apically, with long setae on apical half. Tergum X tapered in dorsal and lateral views, shallowly notched posteromesally (
Fig. 10B
). Inferior appendage simple, with long setae ventrally and laterally on coxopodite; harpago rounded apically, of uniform circumference, with short fine setae dorsally and tiny peglike setae apically. Phallus with phallotremal sclerite horseshoeshaped, ventral sclerite a short tube; endotheca with large round, spiculate lateral lobes and long digitate dorsomesal lobes (
Fig. 10D, E
).
Female. Sternum VIII anterior marginal ridge darkly sclerotized; posterior margin marked by single row of stout setae. Tergum IX with anterior marginal ridge extending mesally length of segment; sternum IX with single pair of lobes darkly sclerotized and striate; anterolateral surface concave, surface rugose. Tergum X semisclerotized posteromesally, appendage without clear suture line; roundly tapered posteromesally (
Fig. 11B
); sternum X with fine setae lateral to anal opening. Vaginal apparatus anterior and posterior sclerites equal in length; anterior sclerite truncate anteriorly, posterolateral projections rounded; posterior sclerite ovoid (
Fig. 11A
).
BOLIVIA
:
La Paz
:
Unduavi
/
Coroico
,
2500 m
,
19–25.xi.1984
,
Peña G.
—
1 male
,
1 female
(
NMNH
)
;
VENEZUELA
:
B. vicaria
holotype
female (
BMNH
)
;
Barinas
:
La Chimenea
,
5 km
Sur La Soledad
,
1500 m
,
28–29.v.1975
,
Dietz
—
1 female
(
NMNH
)
;
San Isidro
,
24.ix.1975
,
Dietz
—
4 males
(
NMNH
)
;
25.ix.1925
,
Dietz
—
1 male
(
NMNH
)
;
San Isidro
,
14 km
Sur La Soledad
,
1500 m
,
30–31.v.1975
,
Dietz
—
1 male
(
NMNH
)
;
Parque Nacional Sierra Nevada
,
Queb. San Juan in Sta. Rosa
,
08°27'52"N
70°50'55"W
,
1000 m
,
21.iii.1997
,
Holzenthal
—
3 males
(
UMSP
)
;
Lara
:
Yacambú
,
1200 m
,
13.v.1981
,
Townes
—
11 males
,
14 females
(
NMNH
)
;
Parque Nacional Dinira
,
Quebrada Las Pinetas
,
09°46'19"N
70°01'45"W
,
1889 m
,
22.vi.2001
,
Holzenthal
,
Blahnik
,
Paprocki
, &
Cressa
—
2 males
,
1 female
(
IZAM
);
3 males
,
7 females
(
UMSP
)
;
Parque Nacional Yacambú
,
6– 8.iv.1981
,
Menke
&
Hollenberg
—
2 males
(
NMNH
)
;
13 km
SE Sanare
,
1560 m
,
1– 5.viii.1981
,
Heppner
—
5 males
,
6 females
(
NMNH
)
;
28–31.viii.1981
,
Heppner
—
6 males
(
NMNH
)
;
10 males
,
10 females
(
UMSP
)
;
6–11.viii.1981
,
Heppner
—
12 males
,
15 females
(
NMNH
)
;
El Blanquito
,
1350 m
,
1–3.viii.1976
,
Rosales
&
Joly
—
2 males
,
4 females
(
NMNH
)
;
Mérida
:
Río Albarregas
, ca.
1 km
NW Univ.
de los
Andes
,
08°38'02"N
71°09'29"W
,
1980 m
,
17.i.1994
,
Holzenthal
,
Cressa
, &
Rincón
—
1 male
,
1 female
(
IZAM
);
1 female
(
UMSP
);
24.iv.1995
,
Holzenthal
,
Gutic
, &
Segnini
—
1 female
(
UMSP
)
;
Río La Gonzalez
, road between
Merida
&
Jaji
,
08°35'05"N
71°17'58"W
,
1870 m
,
25.iv.1995
,
Holzenthal
,
Cressa
, &
Gutic
—
8 females
(
UMSP
)
;
Río Montalban
,
Rt.
4
19 km
W Merida
,
20.ii.1976
,
C & O Flint
—
3 females
(
NMNH
)
;
Tabay
,
2200 m
,
1.v.1981
,
Townes
—
1 male
(
NMNH
)
;
30.iv.1981
,
Townes
—
1 female
(
NMNH
)
;
Parque Nacional Sierra Nevada
,
Mucuy Fish Hatchery
,
7 km
E Tabay
,
Queb. La Mucuy
,
2012 m
,
18.i.1994
,
Holzenthal
,
Cressa
, &
Rincón
—
2 males
(
NMNH
)
;
4 males
,
9 females
,
B. testacea
neotype
male (
UMSP
)
;
26.iv.1995
,
Holzenthal
,
Gutic
, &
Segnini
—
4 males
,
3 females
(
UMSP
)
;
Trujillo
:
Quebrada Potrerito
,
7.5 km
NE Bocono
,
09°16'26"N
70°13'06"W
,
1530 m
,
29– 30.iv.1995
,
Holzenthal
,
Cressa
, &
Gutic
—
9 females
(
UMSP
)
.
Distribution.
Bolivia
,
Colombia
,
Venezuela
.