Rhopaliceschatus, REUTER, 1903

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 : 122-123

RHOPALICESCHATUS REUTER

Figures 8 , 19R , 24

Rhopaliceschatus Reuter, 1903: 1 (gen. nov.; type species: Rhopaliceschatus quadrimaculatus Reuter, 1903 by monotypy); Kuhlgatz, 1906: 29 (key to gen.); Reuter, 1910: 153 (cat.); Oshanin, 1910: 647 (cat.); Hsiao, 1942: 250 (key to gen., list); Carvalho, 1952: 60 (cat.); Carvalho, 1955: 42 (key to gen.); Miller & China, 1957: 430 (key to gen.); Carvalho, 1960: 193 (cat.); Schuh, 1995: 574 (cat.); Schuh, 2002 –2013 (cat.).

Ropaliceschatus Kirkaldy, 1906: 156 a (error pro Rhopaliceschatus Reuter, 1903 ).

Diagnosis: Rhopaliceschatus belongs to the Odoniella - complex (see discussion for tribe), and is recognized by the following characters: ASIII distinctly incrassate apically, ASIV clavate (as in fig. 8E in Namyatova et al., in press); frons with bifurcate outgrowth (as in fig. 4C in Namyatova et al., in press); pronotum and scutellum without tumescences; scutellum distinctly swollen, roundish, exceeding height of pronotum, not subdivided into lower and upper parts (as in Fig. 12A ), covering base of pronotum; hemelytron clothed with flattened dark setae; tibiae without distinct tumescences and regularly setate.

Redescription: Female: Body length 10 mm. COLORA- TION ( Fig. 8 ). Coloration mostly brown to dark brown, scutellum orange with four brown markings. VESTITURE. Head, pronotum scutellum, thoracic pleura and abdomen clothed with pale or dark simple adpressed or erect setae; hemelytron mostly clothed with flattened dark setae, with cuneus clothed with simple setae; antenna with dark simple setae, mostly adpressed and short; setae on legs suberect and long, dark, spinules on femora present or absent apically; spinules on tibia irregularly distributed (as in fig. 18F in Namyatova et al., in press). STRUCTURE. Head. Distance between eye and pronotum shorter than eye diameter (as in Fig. 10F ); occipital region not delimited with depression; longitudinal depression on vertex indistinct or very short; eyes stylate, directed outwards (as in Fig. 10F ), c. 0.2× as long as head width; distance between antennal fossa c. 3× as long as antennal fossa diameter; frons distinctly swollen, with bifurcate outgrowth (as in fig. 4C in Namyatova et al., in press), without longitudinal depression or ridges; anterior view of head c. 1.9× as wide as high; eye height c. 0.8× as distance from eye to apex of clypeus; antennal fossa oval, c. 0.5× as long as eye height, not raised (as in fig. 3B in Namyatova et al., in press), inferior margin placed near inferior margin of eye; base of clypeus placed slightly above inferior margin of eye, distinctly delimited basally; in lateral view head flat; gula shorter than buccula length, slightly convex. Labium. Reaching posterior margin of metasternum; LSI c. 3× as long as wide; LSII c. 3× as long as wide, slightly longer than LSI; LSIII c. 3× as long as wide, subequal to LSII; LSIV c. 5× as long as wide, c. 1.5× as long as LSIII. Antenna. Reaching base of cuneus; ASI c. 1.5–2× as long as wide, subequal to quarter of head width, swollen basally (as in fig. 8E in Namyatova et al., in press); ASII c. 7× as long as ASI, subequal to head and pronotum combined, slightly incrassate apically, with shallow tumescences; ASIII c. 0.6× as long as ASII; widened towards apex; ASIV c. 0.9× as long as ASIII, clavate (as in fig. 8E in Namyatova et al., in press). Thorax. Collar not delimited posteriorly, flat; calli separated, flat (as in fig. 4C in Namyatova et al., in press); depression delimiting calli posteriorly absent (as in fig. 4C in Namyatova et al., in press); humeral angles dilated (as in fig. 4C in Namyatova et al., in press); posterior margin of pronotum distinctly concave, forming right angles (as in Fig. 11F ) scutellum distinctly swollen, often covering, rarely not covering base of pronotum, round or subtriangular (as in Fig. 11F, H ), not divided into parts (as in Fig. 12A ), obtuse apically, without longitudinal depression, ridge or outgrowth; metepimeron c. 1–1.5× as long as wide, angulate (as in Fig. 13E ); metasternum with medial projection to abdominal segment II (as in fig. 17A in Namyatova et al., in press). Hemelytron. Tapering posteriorly; costal margin straight; claval commissure c. 0.15× as long as scutellum, straight (as in fig. 12E in Namyatova et al., in press); R + M almost 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 twice as long as wide, c. 0.6× 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× as long as pronotum; auxiliary vein absent; dis- tance from cell to apex of membrane c. 1.2× as long as cell. Legs. Forecoxae contiguous (as in fig. 17A in Namyatova et al., in press); femora almost not swollen apically, straight, hind tibia often slightly curved; foretibia shorter than head and pronotum combined; tibia without swellings; segments of hind tibia subequal in length; apical half or third part of claw curved; basal tooth on claw elongate, slightly concave (as in Fig. 13J ).

Genitalia ( Fig. 19R ). DLP with a single sclerotized ring anteriorly, c. 1.5× as long as wide; with two areas of striations surrounding bases of lateral oviducts; lateral oviducts attached at middle of those striated areas, widely separated, placed near lateral margin in posterior half; spermathecal gland placed on right-hand side.

Distribution: Known from Tibet only ( Fig. 24 ).

Host plants: Unknown.

Figures

Figure 8. Habitus photographs. Boxia khayae ♂ AMNH_PBI 5065, ♀ type 19448; Boxia madagascariensis ♀ AMNH_PBI 19532; Bryocoropsis laticollis var. infuscata ♂ AMNH_PBI 18947, ♀ AMNH_PBI 18946; Bryocoropsis soror ♂ AMNH_PBI 5115, ♀ AMNH_PBI 5117; Sahlbergella singularis ♂ AMNH_PBI 19118, ♀ AMNH_PBI 19057; Distantiella theobromae ♂ AMNH_PBI 5016, ♀ AMNH_PBI 5019; Odoniella rubra ♂ AMNH_PBI 18951, ♀ AMNH_PBI 18958; Odoniella similis ♂ AMNH_PBI 5036; Volkeliopsis arecae ♂ HT AMNH_PBI 19516; Volkeliopsis mindanao ♀ AMNH_PBI 5237; Platyngomiris coreoides ♀ HT of P. coreoides AMNH_PBI 19643; ♂ HT of Platyngomiriodes apiformis AMNH_PBI 19471, ♀ PT of P. apiformis no USI label (BMNH); Platyngomiris quadrimaculatus ♀ AMNH_PBI 20253; Platyngomiris typicus ♂ AMNH_PBI ♀; Yangambia macarangae ♂ AMNH_PBI 34057, ♀ AMNH_PBI 20192; Yangambia vesiculata ♂ AMNH_PBI 19079, ♀ AMNH_PBI 19086; Volkelius carvalhoi ♂ AMNH_PBI 19309, ♀ AMNH_PBI 20197; Volkelius sulcatus ♀ PLT AMNH_PBI 5047; Volkelius maculatus ♂ AMNH_PBI 19043, ♀ AMNH_PBI 19386.

Figure 10. Scanning electron micrographs. Head and pronotum, dorsal view. A, Mansoniella nitida ♀ AMNH_PBI 46067; B, Poppiusia leroyi ♀ AMNH_PBI 5838; C, Chamus bellus ♀ AMNH_PBI 5223; D, Lycidocoris mimeticus ♀ AMNH_PBI 5043; E, Physophoropterella bondroiti ♂ AMNH_PBI 19110; G, Odoniellia reuteri ♂ AMNH_PBI 19090; H, Volkelius carvalhoi ♀ PT AMNH_PBI 19630; I, Yangambia vesiculata ♀ AMNH_PBI 19084; J, Ragwelellus suspectus ♂ AMNH_PBI 19629. Head, dorsal view. F, Sahlbergella tai ♀ AMNH_PBI 5106. Head, anterior view. K, Parachamus bellus ♀ AMNH_ PBI 5837. Head, lateral view. L, Poppiusia leroyi ♀ AMNH_PBI 5838. Frons, dorsal view. M, Poppiusia leroyi ♀ AMNH_PBI 5838.

Figure 11. SEM images. Scutellum, dorsal view. A, Chamus tuberculatus ♂ AMNH_PBI 5025; B, Volkeliopsis mindanao ♀ PT AMNH_PBI 45979; C, Boxia khayae ♂ AMNH_PBI 5065; D, Bryocoropsis soror ♂ AMNH_PBI 5115; E, Odoniella reuteri ♂ AMNH_PBI 19090; F, Pseudodoniella typical ♂ AMNH_PBI 45978; G, Sahlbergella tai ♀ AMNH_PBI 5106; H, Pseudodoniella pacifica ♂ AMNH_PBI 46080; I, Yangambia vesiculata ♀ AMNH_PBI 19084; J, Sahlbergella singularus ♂ AMNH_PBI 19053; K, Physophoropterella bondroiti ♂ AMNH_PBI 19110. Small tubercules on pronotum. L, Chamus tuberculatus ♂ AMNH_PBI 5025.

Figure 12. Scanning electron micrographs. Scutellum, lateral view. A, Bryocoropsis soror ♂ AMNH_PBI 5115; B, Sahlbergella singularis ♂ AMNH_PBI 19053; C, Physophoroptera mirabilis ♀ AMNH_PBI 20202; D, Physophoropterella bondroiti ♂ AMNH_PBI 19112; E, Afropeltis lalandei ♂ AMNH_PBI 5272; F, Helopeltis pellucida sex unknown AMNH_PBI 19628.

Figure 13. Scanning electron micrographs. Metepimeron. A, Helopletis pellucida sex unknown AMNH_PBI 19628; B, Afropeltis hyalospilosus ♂ AMNH_PBI 5137; C, Poppiusia leroyi ♀ AMNH_PBI 5838; D, Pachypeltis reuteri ♂ AMNH_PBI 45980; E, Odoniella reuteri ♂ AMNH_PBI 19194. Setae on hemelytron. F, Boxia khayae ♂ AMNH_PBI 5065. Fore- and middle femora. G, Physophoropterella bondroiti ♂ AMNH_PBI 19110. Hind femur. H, Helopeltis pellucida sex unknown AMNH_PBI 19628. Hind tarsus. I, Physophoropterella bondroiti ♂ AMNH_PBI 19110. Claw, lateral view. J, Chamus sp. sex unknown, not databased; K, Pachypeltis brevirostris sp. nov. sex unknown, not databased; L, Helopeltis bradyi sex unknown, not databased.

Figure 19. Female genitalia, bursa copulatrix. Eupachypletis pilosus AMNH_PBI 46068. A, dorsal labiate plate; B, posterior wall. Helopletis clavifer AMNH_PBI 74192. C, dorsal labiate; D, posterior wall. Lycidocoris modestus AMNH_PBI 5099. E, dorsal labiate plate. Lycidocoris mimeticus AMNH_PBI 5086. F, dorsal labiate plate; G, posterior wall. Mansoniella nitida AMNH_PBI 45970. H, dorsal labiate plate; I, posterior wall. Lycidocoris thoracicus AMNH_PBI 5096. G, dorsal labiate plate; K, posterior wall. Mansoniella sassafri AMNH_PBI 19067. L, dorsal labiate plate; M, posterior wall. Monalonion sp. AMNH_PBI 19632. N, dorsal labiate plate. Monaloion dissimulatum no USI. O, posterior wall. Odoniella rubra AMNH_PBI 18952. P, dorsal labiate plate; Q, posterior wall. Rhopaliceschatus quadrimaculatus AMNH_PBI 20523. R, dorsal labiate plate.

Figure 24. Distribution maps of Monalonion, Odoniella, Pararculanus, Physophoroptera, Poppiusia, Ragwelellus, Rhopaliceschatus, Volkelius and Yangambia.