Six new species of Cernotina Ross, 1938 (Trichoptera: Polycentropodidae) from Brazil
Author
Barcelos, Patrik
Author
Camargos, Lucas Marques De
Author
Pes, Ana Maria
Author
Salles, Frederico Falcão
text
Zootaxa
2013
3669
2
115
128
journal article
10.11646/zootaxa.3669.2.2
452c2166-63a4-48a6-af2f-846868933f99
1175-5326
220265
5069F56D-BCFC-4D81-8755-40DE57AC8612
Cernotina anhanguera
sp. nov.
Camargos, Barcelos-Silva & Pes
(
Figs. 2
A–D).
Etymology.
The masculine proper noun
anhanguera
refers to Bartolomeu Bueno da Silva, known as “
Anhangüera
” (“old devil” in the native tupi-guarani language), who was the colonizer of the Brazilian state of Goiás searching for precious metals. The specimens were collected in a stream within the area of a nickel mine of the Anglo American mining company.
Diagnosis.
Cernotina anhanguera
sp. nov.
is similar to
C. bispicata
sp. nov.
, by the dorsolateral and ventromesal lobes of preanal appendages rod-like, with apical spines. These species can be distinguished from each other by the relative size of the ventromesal lobe of each preanal appendage, which is almost as long as the dorsolateral lobe in
C. anhanguera
sp. nov.
, and less than half as long in
C. bispicata
sp. nov.
The subtruncate apices of the inferior appendages in
C. anhanguera
sp. nov.
, and strongly truncate apices in
C. bispicata
sp. nov.
can also distinguish the two species.
Description.
Male. Length of each forewing
3.5–3.9 mm
(n = 3). General color in alcohol yellowish brown; antennae pale yellow, tibia and tarsus of each foreleg with short dark brown setae, mid- and hind legs with golden setae.
Male genitalia
: Sternum IX trapezoidal, with anterior margin bearing deep U-shaped incision and posterior margin broadly excavated in ventral view (
Fig. 2
C). Tergum X membranous, posteriorly narrow with deep mesal notch apically in dorsal view (
Fig. 2
B). Preanal appendages each with two lobes, in lateral view dorsolateral lobe elongate, fusiform, with stout, black, apical spine; ventromesal lobe elongate, slightly shorter than dorsolateral lobe, with stout, black, apical spine (
Fig. 2
A). Inferior appendages, in lateral view, each slightly elongate with subtruncate apex, covered by fine setae; basodorsal lobe clavate, bearing some fine setae (
Fig. 2
A); apicomesal lobe with two narrow, strongly sclerotized plates, one slightly curved ventrad in lateral view, and other horizontal, flat, lightly sclerotized. Expanded phallus tubular, base broader than apex, with pair of long internal apical spines (
Fig. 2
D).
Female
: Unknown.
Holotype
male:
BRAZIL
: Goiás; Niquelândia; Pires stream, Anglo American/Codemin;
14°11’0.59”S
,
48°21’4.40”W
;
11–12.ix.2012
; L.M. de Camargos, M.C. Almeida, and C.E.K. de Oliveira; Pennsylvania trap [alcohol] (INPA).
Paratypes
:
Same data as
holotype
,
1 male
(INPA); same data as
holotype
,
1 male
(MZSP).
Biology.
The specimens were collected in a narrow stream in a pasture area with a few riparian trees. The stream has a muddy bottom with small rocks and leaves.