A review of the genus Spanagonicus Berg (Hemiptera: Miridae: Phylinae: Nasocorini) with the description of novel antennal characters, the description of a new species from Central America, and a key to currently known taxa
Author
Menard, Katrina L.
text
Zootaxa
2015
3973
1
139
158
journal article
10.11646/zootaxa.3973.1.5
62cf6c3b-ca7b-45df-ad3c-91e62eed2cdd
1175-5326
240135
D6418B13-4C6C-4BE7-AFF8-371A3CF024E5
Spanagonicus aricanus
Carvalho
Figures 1–2
Spanagonicus aricanus
Carvaho 1984
: 198
, figs. 108–112 (n.sp, descr., DV, fig. head-antenna, MG)
Diagnosis.
Separated from other species of
Spanagonicus
by nearly transparent light brown coloration of the anterior portion hemelytron, brown median area of corium, relatively narrow second antennal segment in males, and only brachypterous females.
Redescription.
Males:
(
Fig. 1
F) Small, ovoid, length 2.35–2.7. COLORATION: Body brown to dark brown; anterior of hemelytron transparent light brown, median of hemelytron and cuneus darker brown; head brown to dark brown; all antennal segments brown; thorax brown; evaporatory area of scent gland beige, first four segments of abdomen light brown, remaining apical segments brown to abdomen being completely dark brown; coxae brown, pro- and mesofemora apically golden and distally dark brown, metafemora completely brown; pro- and mesotibiae golden, metatibiae completely golden to basally dark brown at joint with femora, remainder of structure golden; tarsal segments brown. SURFACE AND VESTITURE: As in generic redescription. STRUCTURE: First antennal segment weakly cup-like and inflated, second antennal segment relatively narrow, nearly parallel-sided; remaining structures as in generic redescription. GENITALIA: As in generic redescription.
Female:
(
Fig. 1
G) Small, relatively ovoid, brachypterous, length 2.1–2.5. COLORATION: Anterior to cuneal fracture and cuneus light brown in most specimens, and unlike males some females may have lighter brown coloration on the anterior portion of hemelytron; rest of coloration as in males. SURFACE AND VESTITURE: As in males. STRUCTURE: As in generic redescription. FEMALE GENITALIA: As in generic redescription.
Hosts.
Unknown
Distribution.
Chile
,
Ecuador
, and
Peru
Material examined.
Paratypes
:
CHILE
: Arica:
Arica,
Jun 1963
, Carvalho,
1
♂
3
♀
(
USNM
).
ECUADOR
: San Antonio:
Mitad del Mundo,
10km
N of Quito,
14 Mar 1973
, M & N. Deyrup,
4
♂
1
♀
(
AMNH
_IZC_ 00139758–62);
San Rafael:
10 km
SE of Quito,
4 Feb 1973
, M. A. Deyrup,
3
♂
(
AMNH
_ICZ 00139755–7).
PERU
: Cañete:
12 Oct 1989
, R. Biengolea,
1
♂
(
USNM
);
27 Apr 1991
, G. Sanchez
1
♂
1
♀
(
USNM
);
Lima:
km 46 Carretera Central E of Lima,
14 Nov 1971
, R. T. & J. C. Schuh,
1
♂
(
AMNH
_IZC 00139754);
Piura:
Piura,
10 Jul 1981
, F. Alvarez,
1
♂
(
USNM
).
Discussion.
The original description of
S. aricanus
describes it as having light brown hemelytra. Viewing male and female
paratypes
, the specimens also have areas of paler coloration on the anterior portion of the corium and adjacent to the cuneus. Recently collected specimens from
Peru
show this same pattern of a lighter coloration, but the patterning is more pronounced. There is an almost transparent area on the anterior portion of the hemelytron and part of the cuneus, but the median area is a more pronounced dark brown, suggesting that the
paratypes
may have faded. Despite this variation, the hemelytra of
S. aricanus
in all specimens are visibly more transparent compared to all other species of
Spanagonicus
, and they do not have the patterning of
S. albofasciatus
. Lastly, the inflation of the second antennal segment in males is also relatively
minor
compared to the other species of this genus.