A new species of Phasmatocoris from French Guiana, with short taxonomic notes on two described species and an updated key (Hemiptera: Heteroptera: Reduviidae: Emesinae)
Author
Gil-Santana, Hélcio R.
text
Zootaxa
2018
2018-04-24
4413
3
491
506
journal article
30195
10.11646/zootaxa.4413.3.4
42150b60-b60f-47dd-8e4b-9bc1a193690d
1175-5326
1227913
D60D3A99-4731-46C2-A879-8C9A3FCA5F21
Phasmatocoris spectrum
Breddin, 1904
(
Figs. 39–42
)
Phasmatocoris spectrum
is the type species of
Phasmatocoris
by monotypy (
Wygodzinsky 1966
, Maldonado-
Capriles 1990
).
FIGURES 39–42
.
Phasmatocoris spectrum
, male holotype deposited in SDEI. 39, lateral view; 40, labels; 41, genitalia portions and a fore leg glued to a card pinned with the specimen; 42, portion of the leg glued to the paper board, arrows point to the dorsal excavation of the fore tibiae and stiff setae on it.
The male
holotype
of this species (
Figs. 39–42
) is from
Bolivia
(
Breddin 1904
) and it was redescribed by
McAtee & Malloch (1925)
and
Wygodzinsky (1966)
. These authors did not record the calamistrum-like structure of the fore tibia, as pointed by
Forero (2006)
in relation to
Wygodzinsky (1966)
.
Forero (2006)
, however, described a similar structure presumably homologous with the calamistrum-like brush in
Ph. spectrum
based on non-types from
Colombia
.
The examination of the
holotype
of
Ph. spectrum
deposited in SDEI (
Figs. 39–42
) showed that only one of the fore legs is still entire, glued to a card pinned with the specimen, while only the coxa remained of the other leg (
Figs. 39, 41
). The presence of the calamistrum-like brush formed by a clustered stiff setae on the dorsal excavation of the fore tibiae (
Fig. 42
) and an apicoventral dense cluster of golden stiff setae could be confirmed in the
holotype
.
Wygodzinsky (1966: 281, identification key)
gave the general color to
Ph. spectrum
as piceous, while in his redescription of the species (p. 290) based on the male
holotype
he recorded the general coloration of head, thorax, and appendages as testaceous and of abdomen as ochraceous. He also mentioned two provisionally identified specimens of
Ph. spectrum
being somewhat darker than the
holotype
, fuscous rather than testaceous. However, the general coloration testaceous, somewhat paler (ochraceous) in the abdomen (and not a general blackish coloration) are in accordance not only with the original description of
Ph. spectrum
(
Breddin 1904
)
, but also with the redescription of
McAtee & Malloch (1925)
of the
holotype
, and the examination of the latter (
Fig. 39
) during the present study. The key presented here, although it is based on that of
Wygodzinsky (1966)
, reflects these findings.
Material examined
. Male
holotype
:
Phasmatocoris
/
spectrum
/
Type
! Bredd. [handwritten label] // Dtsch. Entomol. / Institut
Berlin
// Coll. / Breddin //
TYPUS
[red label] //
Holotypus
[red label] (
SDEI
).
Discussion.
With the exception of the lateral, parallel auxiliary row of a few setae, all other modifications to the fore tibiae recorded by
Pape (2013)
and
Gil-Santana (2015)
were recorded in the species examined here. Therefore, the calamistrum-like structure occurs at least in several species of
Phasmatocoris
, but its presence or absence has remained undocumented in many species of the genus. The presence of this structure suggests a potential arachnophilous association, but currently no field observation is available about the bionomics of these species.
With the new species described here, 18 species are now included in
Phasmatocoris
, two of them recorded from French Guiana.