Volkeliopsis, POPPIUS, 1915

Namyatova, Anna A. & Cassis, Gerasimos, 2016, Systematic revision and phylogeny of the plant bug tribe Monaloniini (Insecta: Heteroptera: Miridae: Bryocorinae) of the world, Zoological Journal of the Linnean Society 176 (1), pp. 36-136 : 127-128

publication ID	https://doi.org/ 10.1111/zoj.12311
DOI	https://doi.org/10.5281/zenodo.10543587
persistent identifier	https://treatment.plazi.org/id/142A4050-DE14-FFA4-91C9-E47DFA5BF9D7
treatment provided by	Marcus
scientific name	Volkeliopsis
status

Treatment

VOLKELIOPSIS POPPIUS View in CoL

Figures 8 View Figure 8 , 11B View Figure 11 , 17Y View Figure 17 –AC, 21S, T, 23

Volkeliopsis Poppius, 1915: 81 View in CoL (gen. nov.; type species: Volkeliopsis frontalis Reuter, 1915 View in CoL by monotypy); Carvalho, 1952: 60 (cat.); Carvalho, 1955: 41 (key); Carvalho, 1957: 149 (cat.); Miller & China, 1957: 430 (key to gen.); Schuh, 1995: 533 (cat.); Schuh, 2002 – 2013 (cat.)’ Sadowska-Woda & Chérot, 2008: 51 View Cited Treatment (disc.).

Carvalhoia Miller & China, 1957: 429 View in CoL (gen. nov.; type species Carvalhoia arecae Miller & China, 1957 by monotypy, junior homonym of Carvalhoia Kormilev, 1951 View in CoL ); Miller & China, 1957: 430 (key to gen.); Schuh, 1995: 526 (cat.); Kerzhner & Schuh, 1998: 171 (nom. nov.).

Mircarvalhoia Kerzhner & Schuh, 1998: 171 View in CoL (nom. nov. for Carvalhoia Miller & China, 1957 View in CoL ).

Diagnosis: Volkeliopsis belongs to the Odoniella - complex and can recognized by the following characters: scutellum moderately swollen, not vesiculate ( Fig. 11B View Figure 11 ); pronotum and scutellum distinctly punctate, humeral angles of pronotum not dilate; hemelytron clothed with simple setae only.

Redescription: Male: Body length 4.5–7. COLORATION ( Fig. 8 View Figure 8 ). Mostly orange to pale brown with ASIII–IV, cuneus, hemelytral membrane and markings on abdomen posteriorly brown to dark brown, scutellum and inner part of clavus or hemelytron sometimes also brown; sometimes also brown marking on head and reddish tinge on head and pronotum present. TEXTURE. Body without tubercles; flattened areas on vertex absent; pronotum and scutellum densely punctate, without wrinkles ( Fig. 11B View Figure 11 ); pair of punctures behind calli, pair of punctures between mesoscutum and scutellum, punctures on clavus and on R + M absent; striations on lateral margins of scutellum present; semicircular depression between scutellum and mesoscutum absent. VESTITURE. Body clothed with pale or dark simple setae; dorsum and appendages with dense and suberect setae, thoracic pleura with rare and adpressed setae; shorter than ASII width; setae mostly shorter than ASII width, those on dorsum and legs sometimes longer than ASII width, setae on tibiae not very dense; femora and tibiae with black spinules irregularly distributed (as in fig. 18F in Namyatova et al., in press). STRUCTURE. Head. Distance between eye and pronotum slightly shorter than eye diameter; occipital region not delimited with depression; longitudinal depression on vertex absent or very short; eyes stylate, directed outwards and slightly forwards, c. 0.17–0.2× as wide as head; distance between antennal fossa twice as long as antennal fossa diameter; frons distinctly swollen, without ridges and longitudinal depression, with or without two tubercles, each with long seta apically; anterior view of head almost twice as wide as high; eye almost as high as distance from eye to apex of clypeus; antennal fossa oval, diameter subequal to 2/3 rd of eye height, not raised (as in fig. 3B in Namyatova et al., in press), inferior margin of fossa placed near inferior margin of eye; base of clypeus placed at the halfway of antennal fossa height; distinctly delimited with depression; head flat in lateral view; gula as long as or shorter than buccula, straight. Labium. Length varying from slightly surpassing anterior margin of mesosternum to reaching posterior margin of mesosternum; LSI c. 2.5–3× as long as wide; LSII c. 3–4× as long as wide, as long as LSI; LSIII c. 3–4× as long as wide, slightly shorter or longer than LSII, LSIV c. 3× as long as wide, slightly shorter or longer than LSIII. Antenna. Reaching base of cuneus; ASI ca.1.5× as long as wide (as in fig. 8E in Namyatova et al., in press), subequal to quarter of head width, widened basally; ASII c. 4.5–5× as long as ASI, as long as head and pronotum combined, distinctly incrassate towards apex, with shallow swellings basally and medially, ASIII clavate, with shallow swellings. Thorax. Collar distinctly delimited laterally and medially, not fused with callosite region posteriorly, flat; calli separated, flat; depression delimiting calli posteriorly absent (as in Fig. 10G View Figure 10 ); humeral angles of pronotum not dilated; posterior margin of pronotum straight or distinctly concave, forming right angles (as in Fig. 10G View Figure 10 ); scutellum moderately swollen, flattened dorsally, triangular, acute or slightly obtuse apically, without outgrowth, medial longitudinal depression or ridge ( Fig. 11B View Figure 11 ); metepimeron enlarged, twice as long as wide, angulate, subtriangular (as in Fig. 13E View Figure 13 ); metasternum with medial projection to abdominal segment II (as in fig. 17A in Namyatova et al., in press). Hemelytron. Costal margin of hemelytron straight or slightly rounded; claval commissure c. 0.6–0.9× as long as scutellum, straight (as in fig. 12E in Namyatova et al., in press); R + M distinct anteriorly and medially, but not reaching posterior margin of corium; medial fracture strongly inclined towards midline (as in fig. 12E in Namyatova et al., in press); corium without swelling posteriorly; cuneus c. 1.8× as long as wide, c. 0.5–0.7× as long as pronotum, medial margin slightly concave (as in fig. 13B in Namyatova et al., in press); membrane cell distinctly surpassing apex of cuneus, forming right angle (as in fig. 13B in Namyatova et al., in press), c. 0.8–0.9× as long as pronotum; auxiliary vein absent; distance from cell to apex of membrane c. 0.8–0.9× as long as cell. Legs. Forecoxae contiguous (as in fig. 17A in Namyatova et al., in press); femora only indistinctly swollen apically, straight; tibiae without swellings; foretibia shorter than head and pronotum combined; segment I of hind tarsus distinctly longer than segment II and almost as long than segment III; claw broadly rounded; basal tooth on claw short and triangular (as in fig. 10B in Namyatova & Cassis, 2013b). Genitalia ( Fig. 17Y View Figure 17 – AC). Genital capsule longer than width, without outgrowth(s), ventral wall not shortened anteriorly; left paramere almost straight, not r-shaped, c. 2.5× as long as right paramere; phallobase sclerite of primary gonopore pear-shaped, tapering apically, without outgrowth(s); ductus seminis not sclerotized basally or apically, as long as phallotheca, with coils forming wide tube, attached to phallobase medially; sclerotized part of phallotheca wide, occupying entire dorsal part, rounded apically, without ridge or outgrowth; endosoma with two suboval serrate spicules or six not serrate spicules.

Female: Body length 6–7.5. COLORATION ( Fig. 8 View Figure 8 ). Similar to male, specimens with brown to dark brown corium unknown. TEXTURE. As in male. VESTITURE. Similar to male, but setae dark or pale, length and density of setae sometimes as in male or shorter, only few setae on appendages as long as width of hind tibia, adpressed on posterior part of pronotum, scutellum, thoracic pleura, and abdomen and suberect on head, anterior part of pronotum and legs; setae on antennae adpressed and suberect. STRUCTURE. Similar to male, but segment I of hind tarsus slightly longer than segment II and segment II as long as segment III; ASIII c. 0.7–0.8× as long as ASII; ASIV c. 0.7–0.8× as long as ASIII, clavate; claw broadly rounded and basal tooth on claw short and triangular. Genitalia ( Fig. 21T, S View Figure 21 ). DLP with single, long, very indistinct sclerotized ring; with distinct paired areas of striations at sides; lateral oviducts attached at middle of those striated areas, widely separated, placed near lateral margin and at half way of DLP; spermathecal gland placed slightly above or below midpoint; posterior wall with small tubercles, without outgrowth and sclerotization; base of second valvula slightly concave; ventral wall membranous.

Distribution: Philippine Islands and India.

Host plants: Volkeliopsis arecae is known from the palm species Areca catechu (Arecaceae) ( Miller & China, 1957).