Menippus dimidiaticornis Jacoby

Lee, Chi-Feng, Bezdĕk, Jan & Suenaga, Haruki, 2012, Revision of Menippus (Coleoptera: Chrysomelidae: Galerucinae) of Taiwan and Menippus dimidiaticornis species group with a new generic synonymy, Zootaxa 3427, pp. 1-16 : 5-7

publication ID	https://doi.org/ 10.11646/zootaxa.3427.1.1
DOI	https://doi.org/10.5281/zenodo.5911248
persistent identifier	https://treatment.plazi.org/id/A670F920-FFAE-DD71-FF3D-2CFA63EC106A
treatment provided by	Plazi
scientific name	Menippus dimidiaticornis Jacoby
status

Treatment

Menippus dimidiaticornis Jacoby , restated

( Figs 11 View FIGURES 9 – 17 , 21 View FIGURES 18 – 25 , 28 View FIGURES 26 – 32 , 35 View FIGURES 33 – 41 )

Menippus dimidiaticornis Jacoby, 1889: 218 .

Pyrrhalta dimidiaticornis: Kimoto, 1979: 464 .

Issikia dimidiaticornis: Kimoto, 1989b: 13 (part).

Galerotella garoana Maulik, 1936: 271 ; Kimoto, 1979: 464 (synonymized with Pyrrhalta dimidiaticornis ).

Male. Length 8.3–8.6 mm. Color: brown; antennae blackish brown except two basal antennomeres pale; legs brown. Sculpture: head, pronotum and elytra with small, extremely dense punctures. Antenna short, reaching midpoint of body, all antennomeres elongate, relative length of antennomeres II–XI about 1.0: 1.4: 1.9: 1.7: 1.6: 1.7: 1.5: 1.6: 1.4: 1.9. Pronotum widest at apical 1/3, gradually narrowed towards base; pronotal disc with pair of circular depressions, with shallow depression medially, and transverse depression along hind margin laterally; hind margin slightly medially and laterally concave. Prosternal process reduced to a narrow keel between coxae, parallel-sided from base to apex; procoxal cavities close, long thin hypomeral lobes reaching apex of posternal process. Elytra elongate, about 1.5X longer than wide, dorsally flat. Apex of last ventrite with a shallow concave excision. Penis slender and weakly curved in lateral view, apically constricted ( Fig. 11 View FIGURES 9 – 17 a); in dorsal view subapically tapering and slightly asymmetric, apex rounded ( Fig. 11 View FIGURES 9 – 17 b). Apex of endophallic sclerite narrowly rounded ( Fig. 11 View FIGURES 9 – 17 b).

Female. Length 8.8–9.4 mm. Similar to male. Apex of last ventrite truncate. Sternite VIII well sclerotized ( Fig. 21 View FIGURES 18 – 25 ), apex slightly concave at middle, with dense extremely long setae along apical margin, spiculum extremely long. Spermathecal receptaculum strongly swollen ( Fig. 28 View FIGURES 26 – 32 ), strongly narrowed between receptaculum and pump, pump narrow and curved; spermathecal duct narrow, slightly projecting into receptaculum. Gonocoxae ( Fig. 35 View FIGURES 33 – 41 ) separated, extremely reduced, very small, without setae.

Diagnosis. This species can be distinguished from other members of Menippus dimidiaticornis group by the weakly curved and symmetric penis with apically tapering apex.

Type material examined. Lecotype ♂ of Menippus dimidiaticornis Jacoby , here designated, with labels: “Bhamò Birmania Fea VI 1886 (white label, printed) / SYNTYPUS Menippus dimidiaticornis Jacoby, 1889 (red label, handwritten) / Museo Civico di Genova (white label, printed)” ( MCSN) . Paralectotypes: 13, same data as lectotype, but with two more labels: “ dimidiaticornis Jac. (white label, handwritten) / Menippus dimidiaticornis Jac. (purple label, handwritten)” ( MCSN) ; 1♀: “Bhamò Birmania Fea VI 1886 (white label, printed) / Menippus dimidiaticornis n. sp. (white label, handwritten) / det. M. Jacoby Menippus dimidiaticornis n. sp. (white label, handwritten) / TYPE (red label, printed) / Type (white label, red letters, printed) / cf. Ann. Mus. Genova, 1889 p. 278 (white label, handwritten)” ( ISBN) ; 1♀: “Bhamò Birmania Fea VI 1886 (white label, printed) / Menippus dimidiaticornis Jac. (purple label, handwritten) / 1st Jacoby Coll. (white label, printed) / Type 17937 (red label)” ( MCZC).

Holotype ♂ of Galerotella garoana Maulik is labeled: “ Zool. Surv. Ind. Tura, Garo hills, Assam, 1200–1500ft., 15.VI–15.VII. (19)17 S. Kemp. (longitudinal) / Galerotella garoana MLK. S. Maulik Type 1936 / Brit. Mus. 1939- 149 / type (circular label with red margin)” ( BMNH) . Seven paratypes were deposited at the Indian Museum ( Maulik, 1936).

Other material examined. THAILAND: 13, 2♀♀, Thanon Thong Chai, Chiang Dao , 600m, 19°24’N 98°55E, 10-16.V.1991, leg. David Král ( NHMB) ; 1♀, same but with “leg. Vit Kubáň ( NHMB) ; 13, Chanthaburi, Khan Soi Dao, 5-13.V.1998, leg. J. Horák ( JVJC) ; 1♀, Banna, Chawang nr. Nabon, 70m, 5.IX.1958, leg. J. L. Gressitt ( BPBM) ; INDIA: 13, 1♀, Mehalaya, W. Garo Hills, Balphakram Nat. Park, 400m, 25°11’N 90°51E, 22- 27.V.1996, leg. Jendek & Šauša ( FKKC) .

Distribution. India, Myanmar, Thailand.

Notes. Menippus dimidiaticornis was transferred to the genus Pyrrhalta ( Kimoto 1979) , then to Issikia ( Kimoto 1989b) . Now its status need to be restated as Issikia is a junior synonym of Menippus .