Four new species of Luciuranus fireflies from the Brazilian Atlantic Rainforest (Coleoptera: Lampyridae)
Author
Da Silveira, Luiz F. L.
Author
Souto, Paula M.
Author
Mermudes, J. R. M.
text
Zootaxa
2018
2018-04-20
4413
1
173
186
journal article
30224
10.11646/zootaxa.4413.1.7
762fe4d7-c776-4f9a-97d9-fc85969f57f0
1175-5326
1221996
D8C6FC14-7D26-4B48-8791-FD280FA14CCC
Luciuranus magnoculus
sp. nov.
Silveira, Souto & Mermudes 2017
(
Figs 2–29
)
Diagnosis.
Elytron dark-brown, with outer margin pale yellow (
Figs. 2
,
19
). Male with eye big (slightly narrower than distance between eyes) (
Fig. 6
); pygidium almost
2x
longer than sternum VIII greatest length, with lateral margins subparallel, posterior margin with median third sinuose, lacking ventral keels (
Figs. 10–12
); sternum IX slightly longer than aedeagus, arms of similar length, bearing stout subapical setae, with internal margins divergent posteriad, apices rounded (
Figs. 13–15
). Female with antenna filiform (
Fig. 22
); distance between antennal sockets slightly shorter than apical maxillary palpomere greatest width (
Fig. 23
); pronotum widest at posterior angles, narrower than elytral humeral distance, anterior margin almost straight (
Fig. 25
); elytron subparallel-sided (
Fig. 19
), sternum VI with posterior margin straight (
Fig. 26
), sternum and tergum VII connected by membrane; sternum VIII as sclerotized as VII, with posterior margin straight (
Fig. 28
).
FIGURES 2–18.
Luciuranus magnoculus
sp. nov.
, male. 2–4 habitus 2 dorsal, 3 lateral, 4 ventral; 5 antenna, dorsal; 6 head, frontal; 7 head and prothorax, lateral; 8 pronotum and mesoscutellum, dorsal; 9 abdomen, detail of ventral view; 10 pygidium, dorsal; 11 sternum VIII and pygidium, detail of lateral view; 12 sternum VIII, ventral; 13–15 sternum IX, 13 dorsal, 14 lateral, 15 ventral; 16–18 aedeagus 16 dorsal, 17 lateral, 18 ventral. Scale bar 2–4: 1 mm; 5: 1 mm; 6–8: 200 µm; 9–18: 200 µm.
FIGURES 19–29.
Luciuranus magnoculus
sp. nov.
, female. 19–21 habitus 19 dorsal, 20 lateral, 21 ventral; 22 antenna, dorsal; 23 head, frontal; 24 head and prothorax, lateral; 25 pronotum and mesoscutellum, dorsal; 26 abdomen, detail of ventral view; 27 pygidium, dorsal; 28 sternum VIII, ventral; 29 ovipositor, ventral. Scale bar 19–21: 1 mm; 22: 500 µm; 23–25: 500 µm; 26– 29: 500 µm.
Description.
Colour pattern (
Figs. 2–4
,
19–21
) overall dark brown, except by the translucent sternum VIII and outer margins of pygidium, and the yellow spots of rudimentary larval lanterns on sternum VIII. Pronotum (
Figs. 8
,
25
) widest at posterior angles, with lateral margins narrower than distance between elytral humeri, posterior angles acute. Hypomeron ventrally rounded (
Fig. 7
,
24
).
Male.
Eye big (slightly narrower than distance between eyes) (
Fig. 6
), taller than head (
Fig. 7
); antennomere IV
3x
longer than wide (
Fig. 5
); pygidium almost
2x
longer than sternum VIII greatest length, with lateral margins subparallel, posterior margin with median third sinuose, ventral keels absent (
Figs. 10–12
); sternum VIII strongly emarginated (
Fig. 12
); sternum IX slightly longer than aedeagus, arms of sternum IX of similar length, bearing stout subapical setae, with internal margins divergent posteriad, apices rounded (
Figs. 13–15
); syntergite lacking transversal and medial sutures (
Fig. 13
); aedeagus with phallus divergent basally, then subparallel, basal projections of parameres contiguous, paramere narrowing towards apex, apex internally sinuose (
Figs. 16, 18
).
Female.
Antenna filiform, antennomere III
2x
longer than pedicel (
Fig. 22
); distance between antennal sockets slightly shorter than apical maxillary palpomere greatest width (
Fig. 23
); pronotum widest at posterior angles, narrower than elytral humeral distance, anterior margin almost straight (
Fig. 25
); elytron subparallel-sided (
Fig. 19
), sternum VI with posterior margin straight (
Fig. 26
), sternum and tergum VII connected by membrane; sternum VIII as sclerotized as VII, with posterior margin straight (
Fig. 28
); ovipositor with proximal plates medially fused, longer than wide, weakly sclerotized (
Fig. 29
).
Etymology.
The specific epithet
magnoculus
is a name in apposition, and comes from the Latin
magnus
, and
oculus
, which refers to the big eyes of this new species.
Type
material.
Holotype
:
BRAZIL
,
Rio de Janeiro
,
Itatiaia
,
Parque Nacional do Itatiaia
,
22°25'01'' S
,
44°38'33'' W
,
1846 m
,
ii.2015
,
Silveira
,
Khattar
&
Monteiro
leg.
, male (
DZRJ 1625
)
.
Paratypes
:
Same
data of
holotype
, two females (
DZRJ 1623
)
;
same data,
Monteiro
leg.
, one female (
DZRJ 1624
)
;
same data,
Monteiro
leg.
, one female (
DZRJ 1624
)
;
same data,
Monteiro
,
Khattar
&
Silveira
leg.
, one female (
DZRJ 1590
)
;
same data, one female (
MNRJ
)
.