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 bispicata
sp. nov.
Camargos, Barcelos-Silva & Pes
(
Figs. 3
A–D).
Etymology.
The adjective
bispicata
refers to the pointy shape of the apex of tergum X, where
bi
(Latin) = two,
spicata
(Latin) = pointy.
Diagnosis.
This species is similar to the preceeding
C. anhaguera
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 less than the half of the dorsolateral lobe in
C. bispicata
sp. nov.
, and almost as long in
C. anhanguera
sp. nov.
The species can also be distinguished by the strongly truncate apices of the inferior appendages in
C. bispicata
sp. nov.
, and subtruncate apices in
C. anhanguera
sp. nov.
The pointy bifurcated apex of tergum X in dorsal view in
C. bispicata
sp. nov.
, as opposed to the subtruncate apex in
C. anhanguera
sp. nov.
, also helps to separate the two species.
Description.
Male. Length of each forewing
3.5 mm
(n = 1). 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, anterior and posterior margins each broadly excavated and posterior margin slightly broader than middle portion in ventral view (
Fig. 3
C). Tergum X membranous, posteriorly narrow with deep and wide mesal notch V-shaped in dorsal view (
Fig. 3
B). Preanal appendages each composed of two lobes, in lateral view with dorsolateral lobe elongate, slightly curved dorsad, with stout, black, apical spine; ventromesal lobe short, less than half as long as dorsolateral lobe, with broad base and tapering to apex, with stout, black, apical spine (
Fig. 3
A). Inferior appendages in lateral view subrectangular, truncate apically, covered by fine setae; each with basodorsal lobe long, digitate, bearing some fine setae (
Fig. 3
A); very dark apicomesal lobe sclerotized, crescentic in lateral view. Expanded phallus short, slightly tubular, base broader than apex, with pair of long internal spines, in subapical area (
Fig. 3
D).
Female
: Unknown.
Holotype
male:
BRAZIL
: Goiás; Niquelândia; Fazenda Horto Aranha, Anglo American/Codemin;
14°25’12.00”S
,
48°44’9.00”W
;
18–19.i.2013
; L.M. de Camargos, M.C. Almeida, and C.E.K. de Oliveira; Pennsylvania trap [alcohol] (INPA).
Biology.
The specimens were collected in a fast, narrow stream within a forest fragment from Cerrado vegetation, with some deep pools along its course. Riparian vegetation of semi-deciduous trees is present all along the river. The stream has a rocky bottom with some leaves and sand in the pools.