Volkeliopsis mindanao, Namyatova & Cassis, 2016

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 : 129-130

VOLKELIOPSIS MINDANAO SP. NOV.

Figures 8 , 11B , 21S, T

Material examined: Holotype. PHILIPPINES: Mindanao: Iligan, Mindanao, 8.22805°N 124.24527°E, Baker , 1♀ ( AMNH _PBI_00005237) ( AMNH).

Paratype. PHILIPPINES: Mindanao: Zamboanga Peninsula Co.: Zamboanga, 7.07136°N 122.12482°E, 465 m, 2999, Baker , 1♀ ( AMNH _PBI_00045979) ( BPBM) .

Diagnosis: Volkeliopsis mindanao can be separated by the following characters: orange head and corium; presence of two tubercles on frons; labium reaching posterior margin of mesosternum; setae on dorsum mostly pale and adpressed; scutellum slightly rounded apically (as in fig. 11B in Namyatova et al., in press); spermathecal gland on DLP placed slightly above midpoint (fig. 21S in Namyatova et al., in press).

Description: Male: Unknown.

Female ( Fig. 8 ): Total length 6.7–7.4. COLORATION. Body mostly orange; ASIII–IV, eye, cuneus, membrane, abdominal segments VII–VIII laterally and segment IX brown to dark brown. TEXTURE. As in generic description. VESTITURE. Body clothed setae, shorter than ASII width, setae mostly adpressed, mostly pale, dark brown on ASII–IV. STRUCTURE AND MEASUREMENTS. Body c. 2.4–2.5× as long as pronotum width; frons with paired tubercles; vertex c. 3.2× as wide as eye; labium almost reaching posterior margin of mesosternum; LSI; LSI c. 3× as long as wide; LSII c. 4× as long as wide, as long as LSI; LSIII c. 3× as long as wide; ASI c. 0.3× as long as head width, c. 0.2× as long as pronotum width; ASII c. 1.4× as long as head width, c. 0.7–0.8× as long as pronotum width; pronotum c. 1.8–1.9× as wide as long and c. 1.9–2.0× as wide as head; scutellum slightly obtuse apically; claval commissure c. 0.8× as long as scutellum, cuneus c. 0.6× as long as pronotum. Genitalia ( Fig. 21S, T ). As in generic description.

Distribution: Philippine Islands (Mindanao Is.) ( Fig. 23 ).

Host plants: Unknown.

Etymology: The species is named after Mindanao Island, from where it was collected.

Discussion: Volkeliopsis mindanao is similar to V. frontalis , in that it possesses two outgrowths on the frons and the scutellum is orange. However, we treat these Philippine specimens as a new species, because of the following characters: orange corium, labium reaching posterior margin of mesosternum, and setae on dorsum mostly pale and adpressed. In comparison, V. frontalis has the corium brown to dark brown, labium slightly surpassing anterior margin of mesosternum and dorsum clothed with setae mostly dark and suberect.

Volkeliopsis arecae differs from V. mindanao by the following characters: absence of paired outgrowths on frons, scutellum acute, dark brown or reddish brown, and LS III slightly shorter than LSII. The female genitalia of V. arecae and V. mindanao are very similar to each other, differing slightly in the position of the spermathecal gland, which is placed slightly below the midpoint of the DLP in the former species and slightly above the midpoint in the latter species.

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 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 21. Female genitalia, bursa copulatrix. Pseudodoniella pacifica AMNH_PBI 45974. A, dorsal labiate plate. AMNH_PBI 20192. B, posterior wall. Yangambia vesiculata AMNH_PBI 19084. C, dorsal labiate plate; D, posterior wall. Platyngomiris coreoides AMNH_PBI 19643. E, dorsal labiate plate; F, posterior wall. Ragwelellus indonesicus AMNH_PBI 46074. G, dorsal labiate plate; H, posterior wall. Poppiusia leroyi AMNH_PBI 5049. I, dorsal labiate plate; J, posterior wall. Ragwelellus suspectus no USI. K, dorsal labiate plate; L, posterior wall. Ragwelellus magnificus AMNH_PBI 19384. M, posterior wall. Ragwelellus vittatus no USI. N, dorsal labiate plate; O, posterior wall. Sahlbergella singularis AMNH_PBI 20212. P, dorsal labiate plate; Q, posterior wall. Sahlbergella tai PT AMNH_PBI 5106. R, dorsal labiate plate. Volkeliopsis mindanao AMNH_PBI 5237. S, dorsal labiate; T, posterior wall.

Figure 23. Distribution maps of Bryocoropsis, Dimia, Distantiella, Lycidocoris, Pachypeltis, Parapachypeltis, Platyngomiris, Rayieria, Schuhirandella, Villiersicoris and Volkeliopsis.