Zeugophora hozumii Chûjô, 1953

Takemoto, Takuya, 2019, Revision of the genus Zeugophora (Coleoptera, Megalopodidae, Zeugophorinae) in Japan, Zootaxa 4644 (1), pp. 1-62 : 25-28

publication ID	https://doi.org/ 10.11646/zootaxa.4644.1.1
publication LSID	lsid:zoobank.org:pub:02543A03-07E4-4F82-9372-CE85EBC99ABF
DOI	https://doi.org/10.5281/zenodo.5584684
persistent identifier	https://treatment.plazi.org/id/03C38C25-4053-FD24-FF3B-F9F2FD63A2CD
treatment provided by	Plazi
scientific name	Zeugophora hozumii Chûjô, 1953
status

Treatment

Zeugophora hozumii Chûjô, 1953 View in CoL

[Japanese name: Aoguro-momobuto-hamushi]

( Figs 17 View FIGURE 17 A–C; 18–21)

Zeugophora hozumii Chûjô, 1953: 1 View in CoL [type locality: Mt. Ôtaki-san in Nagano pref. Honshû, Japan.]; Jolivet, 1957: 10 [listed]; Chûjô & Kimoto, 1961: 120 [ Japan]; Takizawa, 2006: 3 [listed]; Rodríguez-Mirón, 2018: 292 [listed].

Zeugophora (Zeugophora) hozumii: Kimoto, 1964: 108 View in CoL [ Japan: Hokkaido, Honshu]; Kimoto &Takizawa, 1994: 99, 267 [Hokkaido, Honshu]; Silfverberg, 2010: 334 [listed]; Silfverberg, 2010: 335 [listed].

Description. Measurement. Body length: PEL, male, 2.64–3.07 mm, female, 2.83–3.22 mm. Width: EW, male, 1.18–1.42 mm, female, 1.25–1.51 mm. Biometric data are given in Table 4.

Coloration. Surface shiny. Head dark green except mouthparts which are testaceous. Apex of mandible black. Antennae brown except basal one-third which is testaceous. Pronotum dark green. Scutellum dark green. Elytra greenish blue or deep blue. Ventral surface of head and prosternum dark green, thorax and abdomen black. Leg testaceous except black hind coxae, mid femora darkened and hind femora brown.

Habitus. Body oblong.

Head ( Fig. 19A View FIGURE 19 ), covered with sparse setiferous punctures; setae produced from inside punctures ( Fig. 20A View FIGURE 20 ); frontoclypeal suture bisinuate, middle portion narrow, about one fourth width of clypeus; labrum and clypeus convex and furnished with setae; length of clypeus longer than that of labrum. Anterior margin of clypeus weakly lined ( Fig. 18A View FIGURE 18 ). Canthus small, obtusely triangular with apex rounded, furnished with a few setiferous punctures. Apex of mandible bifurcate and furnished with one large tooth apically on inner margin; lateral angles furnished with setae ( Fig. 18D View FIGURE 18 ). Antennae weakly clavate; segments short, except for first, third and fourth which are long and slender, eleventh pointed; all segments setous, fifth through eleventh with smaller, denser setae ( Fig. 18C View FIGURE 18 ).

Pronotum ( Fig. 18A View FIGURE 18 , 19B View FIGURE 19 ) with blunt lateral tubercles, strongly tapered towards base; lateral basal angles weakly swollen; surface regularly convex, densely covered with coarse setiferous punctures ( Fig. 19B View FIGURE 19 ); distance between punctures 0.5–2 times their own diameter, sparser on posterior half of longitudinal median portion and posterior half of lateral portions. Setae produced from inside punctures ( Fig. 19B View FIGURE 19 ).

Elytra long, leaving apex of pygidium exposed, moderately vaulted in lateral view; lateral sides subparallel; surface with reticulate coriaceous microsculpture, irregularly covered with dense setiferous punctures, punctures coarsely separated by 0.5–3 times their diameter; setae produced anterior to punctures, the posterior two-thirds of each puncture deep ( Fig. 20D View FIGURE 20 ); lateral grooves complete from elytral base to apex; sutural grooves ambiguous on elytral base; basal areas of elytra weakly convex on either side of suture; humerus protruding anteriorly; epipleuron narrow. Scutellum trapezoidal, with setae.Disc of mesoventrite rugose; process short, furnished with setiferous punctures ( Fig. 18B View FIGURE 18 , 19C View FIGURE 19 ). Mesepisternum furnished with setiferous punctures, except near suture separating it from mesepimeron ( Fig. 18B View FIGURE 18 , 19C View FIGURE 19 ). Surface of metaventrite with reticulate coriaceous microsculpture ( Fig. 20C View FIGURE 20 ), central area sparsely covered with setiferous punctures, becoming denser on lateral portions, setae produced anterior to shallow punctures ( Fig. 20C View FIGURE 20 ); posterior margin of mid coxal insertion markedly punctate. Surface of sternites sparsely covered with setiferous punctures. In male, posterior margin of 7th sternite evenly curved ( Fig. 19D View FIGURE 19 ). In female, apex of pygidium weakly concave; posterior margin of 7th sternite straight, but bisinuate on central portion ( Fig. 18E View FIGURE 18 ).

Legs furnished with setae; tibial setae becoming longer and denser apically. Hind femora thickened. Tibiae straight; mid and hind tibiae with sharply defined and finely crenulate carina along external face. Apex of tibia with two spurs. Tarsi distinctly shorter than tibiae, and basal three segments gradually widened apically.

Male genitalia as shown in Fig. 21 View FIGURE 21 A–F: 8th sternite furnished with setae, short, oblique anteriorly, membrane and sclerotized portion narrow ventrally, allowing for downward extension ( Fig. 21E, F View FIGURE 21 ); apex of spiculum three branched, central branch furnished with tiny setae ( Fig. 21D View FIGURE 21 ); median struts of median lobe approximately 1.5 times as long as median lobe ( Fig. 21A View FIGURE 21 ); apex of median lobe pointed ( Fig. 21B View FIGURE 21 ), lateral side flattened ( Fig. 21A View FIGURE 21 ); paramere well developed ( Fig. 21C View FIGURE 21 ).

Spermatheca as shown in Fig. 21G View FIGURE 21 .

Host plant. Salix caprea L. [Japanese name: Bakko-yanagi].

Remarks. Zeugophora hozumii is easily distinguished from the other Japanese species by the above-mentioned body coloration.

Types. Not studied.

Specimens examined. Japan. [Hokkaido] Kamikawa Dist .: 2 exs., Kamikawa, Sôunkyô , 23. VI.2018, S. Urabe leg. ( TTPC) , 1 ex., same data but different date and collector, 26. VI.2018, T. Takemoto leg. ( TTPC) . Tokachi Dist.: 1 ex., Katô, Tokachi-mitsumata , 21.VII.2018, S. Urabe leg. ( TTPC) . Okhotsk Dist.: 18 exs., Engaru, Riv. Yûbetsugawa , 25.VII.2003, S. Ômomo leg. ( HTPC) ; 1 ex., same data ( MMPC) ; 2 exs., same data ( HSPC) ; 11 exs., same data ( SEHU) . [Honshu] Tochigi Pref.: 1 ex., Nikkô, Yumoto , 14. VI.2014, S. Maehara leg. ( TTPC) . Yamanashi Pref.: 4 exs., Mt. Senzyô-gatake , 9–11.VII.1971, H. Takizawa leg. ( HTPC) ; 4 exs., same data ( SEHU) . Gifu Pref.: 1 ex. Takayama, Okuhidaonsenkyô, Kamisaka , 2.VIII.2015, M. Yoshimura leg. ( MYPC) .