A systematic revision of the Australian ploiarioline thread-legged assassin bugs (Hemiptera: Reduviidae: Emesinae)
Author
Tatarnic, Nikolai J.
Author
Wall, Michael A.
Author
Cassis, Gerasimos
text
Zootaxa
2011
2762
1
30
journal article
48020
10.5281/zenodo.203726
1192f29e-067a-4ffe-9804-22e56539111a
1175-5326
203726
Emesopsis monteithi
n. sp.
Figs. 6
,
10
,
11
Material examined.
HOLOTYPE
.
AUSTRALIA
:
Queensland
: 1 ɗ, Claudie R.,
5 miles
W. Mt. Lamond,
12.7o S
143.1o E
,
12 January 1972
– D.K. McAlpine, G.A. Holoway (AM).
PARATYPES
.
AUSTRALIA
:
Queensland
: 1 ɗ, Claudie R.,
5 miles
W. Mt. Lamond,
12.7o S
143.1o E
,
12 Jan. 1972
– D.K. McAlpine, G.A. Holoway (AM); 1 Ψ, 1 ɗ, Lockerbie Area, Cape York,
10.8o S
142.5o E
,
13–27 Apr. 1973
, S.R. Monteith (QM); 1 ɗ, Lockerbie Scrub, Cape York,
10.8o S
142.5o E
,
23–27.iv.1973
, G.B. Monteith (QM); 1 Ψ,
4 km
. E. of Lockerbie, Cape York,
10.8o S
142.5o E
,
Jan.30–Feb.4, 1975
, G.B. Monteith, Rainforest (QM).
Diagnosis.
Recognized by the following combination of characters: M and Cu not fused basal of discal cell, subquadrate subbasal cell present, R+M apical of discal cell distinctly angled at branching point; eyes large; postocular region of head with weakly tumid genal area.
Description.
Body length
4.3mm
Colour.
As
in
Figures 10
and
11
. Body mostly reddish-brown with testaceous markings. Lobes of head reddishbrown; AI pale stramineous with three vague narrow testaceous annuli, one basal, one subbasal, one subapical, A2- A4 testaceous; labium pale stramineous with testaceous markings, basal 2/3 of LI testaceous, LII stramineous, LIII basally stramineous becoming testaceous. Pronotum excluding appendages entirely reddish-brown. Forecoxae mostly pale stramineous with vague testaceous basal annulus. Meso- and metacoxae testaceous. Basal portion of forefemora pale testaceous, remainder pale stramineous with two testaceous annulations, medial one small, subapical one large. Meso- and metafemora mostly stramineous-testaceous. Foretibia stramineous with testacous apical, medial, and subbasal annuli. Meso- and metatibia testaceous. Foretarsus mostly stramineous, pretarsus testaceous. Meso- and metatarsi testaceous. Forewings as in
Figure 10
. Abdomen mostly testaceous, SI reddish-brown.
FIGURE 10.
Emesopsis monteithi
. Forewing.
FIGURE 11.
Emesopsis monteithi
, lateral view.
Texture and Vestiture. Head dorsally covered in dense white wool-like pile interspersed with long upright setae; AI with long relaxed setae, AII-AIV with shorter appressed setae; LI with two dorsal (ventral when in repose) rows of recurved setae, LII and LIII with scattered shorter setae. Thorax covered dorsally and laterally with white wool-like pile interspersed with long setae, lateral tumid areas of anterior lobe of pronotum with tridentshaped nude areas, lateral-most lobe of trident basally isolated from remainder by narrow band of pile. Forefemora with mixture of short appressed setae and longer upright setae. Coxae, meso- and metafemora with long setae. Foretibia covered in shorter spine-like setae. Meso- and metatibia with spine-like setae basally becoming greatly reduced. Abdomen blanketed with short velutinous silken setae interspersed with much longer setae, SI with dense wool-like pile.
Structure.
As
shown in
Figures 10
and
11
. Postocular region slightly larger than anteocular region, latter elevated with depressed V-shaped area dorsally. Postocular region subglobose. Interocular groove deep, arching only slightly posteriorly. Labium strongly bent between LI and LII, LII strongly swollen, relative lengths 1:0.33:0.91. Pronotum constricted before midpoint; anterior lobe bilaterally divided by a deep pit in the disc, subglobose in dorsal view; posterior lobe almost two times longer than anterior lobe, disc with vague median longitudinal depression, posterior margin sinuate. Scutellum subtriangular. Metanotum U-shaped with short spine bent strongly posteriorly. Forecoxae elongate, cylindrical. Forefemora elongate, subclylindrical, posteroventral and anteroventral series similar in structure. Foretarsus 2-segmented, second segment 2 times larger than first. Meso- and metacoxae globose. Meso- and metafemora thin, elongate, cylindrical. Meso- and metatibia thin, elongate, cylindrical. Meso- and metatarsi 3-segmented, segments approximately equal in length.
Distribution.
This species is known from the northern tip of the Cape York Peninsula (
Fig. 6
).
Etymology.
This species is named in honour of G. B. Monteith, who collected the
type
material for many of the new species described in this work.