New species of Macunahyphes Dias, Salles & Molineri (Ephemeroptera: Leptohyphidae), with taxonomic notes
Author
Paula Malaquias Souto
Author
Frederico Falcão Salles
text
European Journal of Taxonomy
2016
254
1
15
journal article
37375
10.5852/ejt.2016.254
37f603bf-5d64-4131-9907-b633066b243b
269386
urn:lsid:zoobank.org:pub:F5CFCCC2-A1EC-4C9E-89B0-85D228F50F1C
Macunahyphes eduardoi
Almeida & Mariano, 2015
Figs 2
B, 4E
Macunahyphes eduardoi
Almeida & Mariano, 2015
: 498
.
Diagnosis
According to the original description, the male of
M. eduardoi
can be distinguished from all congeners by the following combination of characteristics: 1) fore wing translucent, with costal and subcostal area tinged with grey and with longitudinal vein CuP absent; 2) penes opaque yellow, spine elongate with lateral projections.
Material examined
Holotype
BRAZIL
: ♁, imago,
Bahia
,
Igrapiúna
,
Michelin Ecological Reserve
,
Pacangê River
,
Pacangê-Sapucaia
2ª
Ponte
,
13°50′17.1″ S
,
39°14′27.7″ W
,
101 m
,
21 Sep. 2012
,
A.R. Calor
and Equipe LEAq leg.(
CZNZ
).
Other material
BRAZIL
: 1 ♁, imago,
Espírito Santo
, Nova Venécia, Santa Rita do Pipinuck, Rio Cricaré,
18°39′51.4″ S
,
40°30′44.9″ W
,
25–26 Jul. 2012
, K.B. Angeli leg. (
CZNC
Ep-4561); 2 ♁♁, imagines, same data but
18 Apr. 2012
(
CZNC
Ep-6431); 4 ♁♁,
3 ♀♀
, imagines,
Amazonas
, Barcelos, Serra do
Aracá (Base)
, tributary of Igarapé do Cobra,
00°52′13.22″ N
,
63°27′13.36″ W
,
25–26 Jul. 2009
, F.F. Salles, A.P. Santos and N. Ferreira-Jr. leg. (
CZNC
Ep-6437); 1 ♁ imago, Jauari River,
00°48′0.28″ N
,
63°29′22.92″ W
,
26 Jul. 2009
, F.F. Salles, A.P. Santos and N. Ferreira-Jr. leg. (
CZNC
Ep-6438); 1 ♁,
3 ♀♀
, subimagines,
Roraima
, Caracaraí, Balneário Bem Querer,
01°55′46.3″ N
,
61°00′06.9″ W
,
13 Mar. 2014
, F.F. Salles, R. Boldrini, E. Dominguez leg. (
CZNC
Ep-6562).
Description
Female subimago
(
Fig. 2
B)
LENGTH (mm). Body: 3.0–4.8; fore wing: 3.2–5.0. General coloration dark brown and yellowish.
HEAD. Brown, washed with black; area between lateral ocelli and posterior margin tinged with black.
THORAX. Pronotum brown, tinged with black, except for submedial stripe and anterolateral corner; mesonotum brown, washed with black; metanotum yellowish, washed with black; membranous filaments of mesoscutellum present and longer than in males.
FORE WING. Membrane white, longitudinal and cross-veins black; vein CuP absent.
ABDOMEN. Translucent (yellow because of the presence of eggs), washed with black; terga II–V forming a V-shaped unpigmented area; caudal filaments broken off.
Egg
(
Fig. 4
E)
Yellow. Shape elongate. One polar cap present. Chorion with longitudinal costae formed by plates, each one with a deep emargination.
Remarks
In the description of the male imago of
M. eduardoi
there is no reference to the presence of membranous filaments of the mesoscutellum; this character is evident from the fresh material studied here. After examining the
holotype
of
M. eduardoi
it was possible to observe the presence of a short filament of about ¼ the length of the mesoscutellum. According to the original description, the hook-shaped lateral expansions present in the penis projection are distributed from its base to the middle region, whereas in the material examined by us the expansions are present throughout the penis projection, decreasing in size towards the apex. This is the first record of
M. eduardoi
from southeastern (state of
Espírito Santo
) and northern (state of
Amazonas
)
Brazil
.
Macunahyphes eduardoi
occurs in areas comprising two disjunct biomes, Amazon and Atlantic Forest. Other species of plants and animals also show this distribution pattern, including some aquatic insects, such as
Asthenopodes chumuco
Molineri, Salles & Peters, 2015
(
Ephemeroptera
:
Polymitarcyidae
),
Macrostemum erichsoni
(Banks, 1920)
and
Smicridea
(
Ryachophylax
)
roraimense
Albino, Pes & Hamada, 2011
(
Trichoptera
:
Hydropsychidae
). The presence of disjunct populations of a single taxon in Amazonia and the Atlantic Forest may be evidence of ancient connections between these biomes (see
Costa 2003
;
Santos
et al.
2007
;
Fiaschi & Pirani 2009
; Buso Junior
et al.
2013).
Distribution
(
Fig. 1
)
Brazil
(
Amazonas
,
Bahia
and
Espírito Santo
).