Azumamiris vernalis, Yasunaga, Tomohide, 2010

Yasunaga, Tomohide, 2010, Azumamiris vernalis: a new genus and species of Mirini from central Japan (Heteroptera: Miridae: Mirinae), Zootaxa 2601, pp. 45-52 : 47-51

publication ID

https://doi.org/ 10.5281/zenodo.275959

DOI

https://doi.org/10.5281/zenodo.6211962

persistent identifier

https://treatment.plazi.org/id/7C04C915-3512-1E07-FF3E-F929FEC8FB53

treatment provided by

Plazi

scientific name

Azumamiris vernalis
status

sp. nov.

Azumamiris vernalis View in CoL New species

( Fig. 1 View FIGURE 1 , 2 View FIGURE 2 , 3 View FIGURE 3 A–D & H, 4A–F)

Diagnosis: Recognized by the generally dark coloration, relatively large size, shiny, frontally rounded head with tumid jugum, small eye, orange brown antennal segment I, broad, long rostrum, anteriorly constricted pronotum, a clear, creamy-yellow spot on scutellum, and symmetrically darkened hemelytron ( Fig. 1 View FIGURE 1 A–D) General coloration often fades to stramineous or brown in dried specimens ( Fig. 2 View FIGURE 2 ). The final instar nymph is recognizable by the pale grayish-brown body with the brown or reddish-brown spots on the pronotum and abdomen ( Fig. 1 View FIGURE 1 E, F), and with the apically spatulate (broadened), semitransparent scale-like setae on the dorsal surface ( Fig. 1 View FIGURE 1 F).

Description. Adult: Body generally somber stramineous-brown, with widely brownish-black dorsal surface ( Fig. 1 View FIGURE 1 A–D, 2). Head largely shiny black, bearing dark, semierect setae; vertex with V-shaped yellowish-brown pattern along inner margin of eyes. Antenna mostly dark brown; segment I orange-brown [yellowish-brown], with reddish extreme apex; proximal 1/3–1/2 of Ƥ segment II pale except for dark base; segment III slightly longer than width of head across eyes. Labium orange-brown [yellowish-brown, partly tinged with red]; apical part of segment IV widely infuscate. Pronotum shining, dark brown; medial part of disk and collar reddish-brown [stramineous brown]; mesoscutum and scutellum brownish-black; the latter with a conspicuous, mid-longitudinal, creamy white [whitish brown] spot; thoracic pleura, including scent efferent system, widely creamy-white [stramineous-brown] and shagreened, with variable infuscate patterns laterally ( Fig. 1 View FIGURE 1 B, D). Hemelytron dark brown, with a pale brown longitudinal stripe on costal side of corium; weak; cuneus and inner 1/3–1/2 of clavus along claval commissure pale brown; membrane smoky brown, with pale brown veins. All coxae creamy-white [pale brown], with darkened bases; femora and tibiae pale reddish-brown [stramineous-brown]; pro- and mesofemora each with two reddish brown [brown] rings apically; metafemur whitish basally, with three reddish [brown] rings on apical half part; extreme apex of each tibia and whole tarsi dark brown. Abdomen dark brown, ventrally with usually paired, symmetrical whitishbrown [pale brown] streaks or patterns. Male and female genitalia as in generic description.

Final instar nymph (only females available): Body generally pale greyish-brown, elongate oval, with sparsely distributed, dark, semierect, spine-like setae; dorsum partly reddish or purplish brown, or speckled with brown spots, and with uniformly distributed, semitransparent scale-like setae (apical part of each scalelike seta noticeably widened and spatulate, so that the dorsum at first sight seems to scatter silvery powder as in Fig. 1 View FIGURE 1 F). Head symmetrically speckled with reddish-brown spots or striae, with densely distributed, scalelike setae. Antenna reddish-brown; segments I and II broadened, uniformly setose; segment III yellowishbrown except for darkened apex, slightly longer than IV. Labium dark reddish-brown, broad, slightly exceeding apex of metacoxa. Pronotum speckled with small brown spots particularly along calli; apical parts of wing-pads darkened. Legs purplish- or reddish-brown; base and apical part of each femur with pale rings; tibiae with dark, stiff spines. Abdomen almost entirely speckled with small reddish-brown spots.

Measurements. Adults (♂/ Ƥ): total body length 6.7–7.2/ 7.0–7.6; head width across eyes 1.17–1.22/ 1.24–1.27; vertex width 0.52–0.55/ 0.60–0.64; lengths of antennal segment I–IV 0.85–0.88, 2.43–2.65, 1.26– 1.37, 0.95–1.07/ 0.81–0.84, 2.45–2.51, 1.34–1.43, 1.03–1.10; labial length 3.04–3.26/ 3.29–3.34; mesal pronotal length including collar 1.05–1.08/ 1.11–1.18; basal pronotal width 1.64–1.69/ 1.78–1.83; width across hemelytron 2.07–2.26/ 2.37–2.51; lengths of metafemur, tibia and tarsus 2.17–2.26, 3.00–3.26, 0.75– 0.80/ 2.33–2.44, 3.31–3.42, 0.81–0.86. Final instar nymph (Ƥ): total body length 4.7–5.3; head width across eyes 1.11–1.18; vertex width 0.54–0.61; lengths of antennal segment I–IV 0.58–0.64, 1.58–1.63, 1.11–1.18, 1.03–1.14; labial length 2.60–2.67; mesal pronotal length 0.65–0.72; basal pronotal width 1.26–1.35; width across wingpads 2.03–2.08; lengths of metafemur, tibia and tarsus 1.62–1.77, 2.23–2.38, 0.60–0.66.

Etymology. From Latin, vernalis (= spring season), referring to the short-time appearance of this new species in May; an adjective.

Distribution. Japan (central Honshu: Kanto region).

Biology. This univoltine mirid is associated with a dwarf bamboo, Pleioblastus chino (Fr. et Sav.) Makino (Gramineae) . The adults are found from early to mid May and the eggs appear to hibernate.

Holotype: ♂, JAPAN: central Honshu, Ibaraki Pref., Ushiku City, Shimone, 35°59’08”N, 140°18’27”E, on Pleioblastus chino , 10 May 2009, K. Takahashi ( AMNH).

Paratypes. 45♂ 20Ƥ, same data as for the holotype ( AMNH, TYCN); 1♂ 3Ƥ, same data, 8 May 2009 ( TYCN).

Additional material examined. 5 final instar nymphs (Ƥ), same data as for the holotype except for date, 8 May 2009.

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Miridae

Genus

Azumamiris

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF