A review of burrower bugs (Hemiptera: Heteroptera: Cydnidae sensu lato) of Guam
Author
Lis, Jerzy A.
Author
Zack, Richard S.
text
Zootaxa
2010
2523
57
64
journal article
10.5281/zenodo.294105
ba12cd1a-dea5-48d8-bb50-978cebcef3d7
1175-5326
294105
Byrsinus varians
(Fabricius, 1803)
, first territory record
(
Figs. 1–2
,
9
)
Microporus shiromai
Froeschner, 1976
: 232
,
new synonym
.
Diagnostic characters:
Body from pale brown to blackish brown,
3.4–4.5 mm
in length. Head sparsely punctured; clypeus subapically with two peglike setae (
Figs. 1–2
); each paraclypeus with a submarginal row of 10–12 setigerous punctures (7–8 peglike setae, and 3–5 hairlike setae); 2nd antennal segment shorter than 3rd segment. Pronotum moderately punctured, each lateral margin with numerous (19–40) submarginal setigerous punctures. Each costal margin with 11–24 setigerous punctures. Evaporative areas on meso- and metapleuron small, almost indistinct (
Fig. 9
). Paramere described in
Lis (1994)
.
Material examined:
Guam
: Mangilao Village, University of
Guam
campus, Marine Biol. Lab. Area, at lights,
N13o25.714’
E144o47.913’
,
1 female
17 May 2004
,
1 female
18 May 2004
,
2 females
19 May 2004
, R.S. Zack collr.;
Guam
: Mangilao Village, Fadian Point, University of
Guam
aquaculture center,
N13o26.586’
E144o49.176’
,
5 males
11 females
8 Aug 2005
, R.S. Zack, MV light.
FIGURES 1–8.
Head in two dorsal views. 1, 3, 5, 7—showing head shape and puncturation, 2, 4, 6, 8—showing head vestiture.
Distribution:
Bangladesh
,
Brunei
,
Burma
, Chagos Archipelago,
Cambodia
,
China
(Hainan,
Tianjin
, Neimenggu, Ningxia),
India
,
Indonesia
,
Japan
,
Korea
,
Laos
,
Malaysia
,
Maldive Islands
,
Philippines
,
Sri Lanka
,
Thailand
,
Vietnam
.
Remarks:
When describing
Microporus shiromai
as a new species from Hawaii,
Froeschner (1976)
was aware that this species was introduced into Hawaii from elsewhere; however, he decided to describe it as a new because, as he wrote, “this recently collected species needs a name, under which accumulating data can be stored.” Moreover, he stated that “its occurrence on the island represents a recent introduction,” and all the morphological characters “suggest an Old World origin of the species, but give no clue to a particular part thereof.” At present, it is clear that
M
.
shiromai
has all of the characters of the Oriental
B
.
varians
, and should be regarded as its junior synonym. Unfortunately, the
type
specimens were not found in Froeschner’s collection (personal information from Dr. A. Wolski), and therefore the present synonymization is based only upon the original species description.