A phylogenetic revision of the true bug genus Heraeus (Hemiptera: Rhyparochromidae: Myodochini), with the description of two new genera and 30 new species
Author
Dellapé, Pablo M.
Author
Melo, María C.
Author
Henry, Thomas J.
text
Zoological Journal of the Linnean Society
2016
2016-04-17
177
1
29
134
http://dx.doi.org/10.1111/zoj.12362
journal article
10.1111/zoj.12362
0024-4082
10109299
8A961A76-E33C-4171-B401-0B516B62FA6D
HERAEUS PACIFICUS
BARBER, 1925
(
FIGS 36E
,
38
,
39B
,
40E–H
)
Heraeus pacificus
Barber, 1925: 244–246
;
Barber, 1934: 286
;
Slater, 1964: 1083
;
Linsley & Usinger, 1966: 134
;
Ashlock, 1972: 101
;
Parkin
et al
., 1972: 102
;
Linsley, 1977: 11
;
Harrington, 1980: 109
;
Schaefer
et al
., 1980: 46
;
Froeschner, 1981: 43
;
Froeschner, 1985: 22
;
Peck, 2001: 258
.
Figure 40.
Male genitalia.
Heraeus nicaraguensis
sp. nov.
: A, pygophore, dorsal view; B, pygophore, lateral view; C, right paramere, inner view; D, right paramere, external view.
Heraeus pacificus
Barber, 1925
: E, pygophore, dorsal view; F, pygophore, lateral view; G, right paramere, inner view; H, right paramere, external view.
Heraeus pallidinervis
sp. nov.
: I, pygophore, dorsal view; J, pygophore, lateral view; K, right paramere, inner view; L, right paramere, external view.
Heraeus penai
sp. nov.
: M, pygophore, dorsal view; N, pygophore, lateral view; O, right paramere, inner view; P, right paramere, external view.
Diagnosis
Ocelli posterior to an imaginary line passing the posterior border of eyes. Labium extending to or slightly surpassing mesocoxae. Antennae uniformly dark brown. Pronotum with long erect setae only on anterior pronotal lobe. Membrane brown, without an apical corial spot. Metafemur with a dark subapical band. Anterior margin of dorsal aperture of pygophore slightly rounded with lateral regions angulate.
Heraeus pacificus
together with
H. pulchellus
and
H. plebejus
are the only species in the group that lack a pale band on the distiflagellomere (although in some specimens of
H. pulchellus
a pale band is slightly evident).
Heraeus pacificus
can be distinguished by the uniformly coloured dark-brown antenna and the ocelli placed posterior of an imaginary line passing the posterior border of eyes;
H. pulchellus
and
H. plebejus
have the antennae pale brown to brown with the apex of basiflagellomere and distiflagellomere darker, and the ocelli are placed at the level of an imaginary line passing the posterior border of eyes.
Redescription (
Fig. 36E
)
Head:
Brown, shiny, coriaceous, with short recumbent and long erect setae dorsally. Eyes not surpassing the dorsal margin of head in lateral view. Ocelli posterior of an imaginary line passing the posterior border of eyes. Labium pale brown, with short erect setae; extending to or slightly surpassing mesocoxae. Antenna uniformly dark brown, with short recumbent and long erect setae.
Thorax:
Pronotum brown, pruinose, punctate. Posterior pronotal lobe with pale spots and with a pale spot on each humeral angle. Anterior and posterior lobes with short recumbent setae, and erect longer setae on anterior lobe. Scutellum brown, with long erect setae. Evaporative area extended. Hemelytra: irregularly brown, costal margin pale on proximal three-quarters; inner corial spot well developed; membrane brown, with veins paler; setae short and recumbent. Legs: coxae, protrochanter, and profemur dark, at most with apices paler, meso- and metafemur with a narrow subapical dark band; apex of tibiae, tarsi, and pretarsi darker (
Fig. 39B
); setae long and erect, longest on profemur.
Abdomen:
Brown, with abundant short recumbent setae. Male genitalia: Pygophore (
Fig. 40E, F
) rounded, with posterior margin straight, anterior margin of dorsal aperture almost straight, inner projections long, slightly bilobed. Parameres:
Figure 40
(G, H). Aedeagus: conjunctiva unspined, with an anterior lobe at base of the ejaculatory reservoir; vesica with minute spines lateral to the ejaculatory reservoir and on the lobes;
processus gonopori
long and slender.
Variability observed
We have examined specimens from
Santa Cruz
Island that differ from
Barber’s (1925)
original description. These specimens are paler; the head is slightly narrower than the anterior lobe of the pronotum; all antennal segments have abundant setae; the labium is shorter, extending to mesocoxae, and in some specimens the labium surpasses the mesocoxae, extending to the anterior region of the metacoxae; and the hemelytra have short recumbent setae. In addition, we have observed some characters not mentioned in the original description: the scutellum has setae longer than on the anterior lobe of pronotum; the legs have short semi-erect setae; and the anterior tibiae bear small denticles ventrally that are more conspicuous in the males.
Distribution
Galapagos:
Santa María Island, San
Salvador Island
, and Santa Cruz Island; Fernandina Island, Floreana Island, Santiago Island (NEW RECORDS) (
Fig. 38
).
Type
material
This species was described based on a male
holotype
, and
two female
and
one male
paratypes
from
James Island
, deposited in AMNH
.
Material studied
GALAPAGOS
:
Santa Cruz
Island
:
2♀
,
Indefatigable Island
,
Puerto Azora
,
XII-1971
/III-[19]72, at light,
J. Vagvolgyi
(
CAS
)
;
23♂
,
32♀
,
Hornemann Ranch
,
8-II- 1964
,
I.L. Wiggins
(
CAS
)
;
1♂
,
1♀
,
Hornemann Farm
,
220 m
a.s.l.
5-IV-1964
,
D.Q. Cavagnaro
(
CAS
)
;
1♂
,
1♀
, D.Q.
Cavagnaro
(
MLP
)
;
1♀
,
7-V-1964
, D.Q.
Cavagnaro
(
CAS
)
;
1♂
, grassland,
750 m
a.s.l.
,
10-IV-1964
, D.Q.
Cavagnaro
(
CAS
)
;
1♂
,
4♀
,
Academy
Bay
,
Darwin Research Station
,
8-II-1964
,
R.O. Schuster
(
CAS
)
;
1♀
,
12-II-1964
,
D.Q. Cavagnaro
& R.O.
Schuster
(
CAS
)
;
1♂
,
1♀
, vic.
Media Luna
, 4-VI-[19]
70, 600 m
a.s.l.
, at light,
Miconia
‘
Belt’, R
.
Silverglied
&
T.J. de Vries
(
USNM
)
;
2♂
, vic.
Media Luna
, 4-VI-[19]
70, 600 m
a.s.l.
, at light,
Miconia
‘
Belt’, R
.
Silverglied
(
USNM
)
;
2♂
,
2♀
,
Cerro Crocker
,
800 m
a.s.l.
, 19-VI-[19]85, volcano crater, ferns &
Psychotria
litter,
S. & J. Peck
(
USNM
)
;
9♂
,
19♀
,
Los Gemelos
,
31 km
N Sta. Ro
[sa], 15-VII-[19]85,
Scalesia
forest,
570 m
a.s.l.
, FIT &
Malaise, S.
&.
J. Peck
(
USNM
)
;
17♂
,
34♀
, 13-VI/15-VII-[19]85, FIT &
Malaise, S.
&. J.
Peck
(
USNM
)
;
1♂
,
2♀
,
Scalesia
forest litter, FIT &
Malaise, S.
&. J.
Peck
(
USNM
)
;
1♀
,
9 km
N Los Gemelos
,
330 m
a.s.l.
, 17-V-[19]91, up. trans. for UV light,
J. Heraty
& S.
Peck
(
USNM
)
;
1♂
,
El Granillo
,
9 km
N Los Gemelos
, 15-VI-[19]91, trans. for UV light,
S. Peck
(
USNM
)
;
8♂
,
12♀
,
4 km
NE St Rosa
, 28-VI- [19]85,
Scalesia
forest litter N of
Cerro Banderas
,
S. & J. Peck
(
USNM
)
;
1♂
,
1♀
,
4 km
N Bellavista Medialuna
,
620 m
a.s.l.
, 14-V/13-VII-[19]85,
Miconia
zone, FIT, S. & J.
Peck
(
USNM
)
;
1♀
,
Media Luna
,
600 m
a.s.l.
, 29-V-[19]91, wet
Miconia
litter,
S. Peck
(
USNM
)
;
1♂
,
35 km
W Bellavista
,
Finca Vilema
,
210 m
a.s.l.
,
Scalesia
pasture, FIT, 1/30-V-[19]92,
S. Peck
(
USNM
)
;
Isabella
Island
:
7♂
,
12♀
,
Alcedo
, 20/24-VI- [19]91,
Crater
rim, UV light,
1100 m
,
S. Peck
(
USNM
)
;
1♀
,
Volcan Alcedo
crater rim,
1100 m
a.s.l.
, 21/
23-VI- 1991
, CVALC-09–017,
C. Vogel
(
USNM
)
;
1♀
,
Volcan Alcedo
, 21/26-VI-[19]91,
C. Vogel
(
USNM
)
;
1♂
,
3♀
, NE rim
Alcedo
,
1100 m
a.s.l.
, 21/25-VI-[19]91, pit & bottle tps under shrubs,
S. Peck
(
USNM
)
;
1♀
,
Alcedo SE
crater rim, 23-VI-[19]91, 1150 m a.s.l.,
Bermoss
& epiphytes on trees,
S. Peck
(
USNM
)
;
1♂
,
Alcedo
,
10 km
SW
NE Playa
,
1100 m
a.s.l.
, 24-VI-[19]91,
Heraty
, scrub for. H91-114 (
USNM
)
;
1♀
,
Cerro Azul
,
7 km
NE Caleta Iguana
,
700 m
a.s.l.
, pampas, 23-V-[19]91, leaf litter sifting,
S. Peck
(
USNM
)
;
1♀
,
Cerro Azul
,
2 km
NE Caleta Iguana
, FIT, 19/25-V-[19]
91, 155 m
a.s.l.
,
S. Peck
(
USNM
)
;
1♀
,
Cerro Azul
,
300 m
a.s.l.
, 18/26-C-1991,
C. Vogel
(
USNM
)
;
3♀
,
350 m
a.s.l.
, 22/
25-V-1991
, C.
Vogel
(
USNM
)
;
1♀
,
Cerro Azul
,
8 km
W Cal. Iguana
,
850 m
a.s.l.
, 22-V-[19]91, crater/grass,
J. Heraty
(
USNM
)
;
Fernandina Island
:
1♀
,
10 km
NE Cabo Hammond
,
400 m
a.s.l.
, 6/9-V-[19]91, open meadow, UV, S. & J.
Peck
(
USNM
)
;
Santiago
Island
:
1♂
,
1♀
,
Pla. Espumilla
,
2 m
, arid zone opening, 3/10-VI-[19]91, UV light,
S. Peck
(
USNM
)
;
1♂
,
1♀
,
Aguacate Camp.
,
550 m
a.s.l.
, 4-7/ 8-VI-[19]91, humid forest, UV light,
S. Peck
(
USNM
)
;
Floreana Island
:
1♀
, base
Cerro Pajas
,
300 m
a.s.l.
, 28- III/23-IV-[19]96,
Scalesia
forest,
Malaise, S
.
Peck
(
USNM
)
.