Ochlerus Spinola, 1837

Campos, Luiz Alexandre & Roell, Talita, 2018, Nomenclatural changes in Ochlerini (Hemiptera: Heteroptera: Pentatomidae: Discocephalinae), Zootaxa 4434 (1), pp. 184-192 : 189

Ochlerus Spinola, 1837

Ochlerus Spinola, 1837: 294 –295.

Hemingius Distant, 1899: 423 –424. NEW SYNONYMY (removed from the synonymy with Moncus Stål, 1867 ).

Ochlerus scaber Walker, 1867 , REVISED STATUS

(removed from the synonymy with Ochlerus obscurus Dallas, 1851 )

Ochlerus scaber Walker, 1867: 195 –196.

Hemingius scaber: Distant (1899: 424) ; Kirkaldy (1909: 186).

Ochlerus obscurus Dallas, 1851: 157 ; Distant (1911: 245).

Moncus obscurus: Distant (1911: 245) .

Ochlerus cotylophorus Breddin, 1910: 621 –622 (fig. 8); Simões & Campos (2015: 215, 220–221, figs. 4, 19). NEW SYNONYMY

Material examined. BRAZIL, female holotype ( Fig. 6 ), labels: “Braz Tapajos”; “53 27”; “17. Ochlerus scaber .”; “ BRIT . MUS. TYPE No. HEM. 689”; “Type”; “♀”; “Holotype”; “NHMUK 010592529”

Comments. Walker (1867) described Ochlerus scaber for one female that presents common characteristics of the genus Ochlerus , i.e. large eyes, long scutellum, labium arising before the imaginary plane bisecting head at anterior limit of eyes ( Walker 1867, Rolston 1992).

Distant (1899) proposed the genus Hemingius for O. scaber , and commented that Walker’s description for the scutellum only surpassing the half of abdomen was incorrect. Distant (1899) described the scutellum of the type specimen of O. scaber reaching the apex of abdomen. Years later, Distant (1911) supposed that Walker had misplaced the labels of the type of O. scaber , and proposed the synonymy between his genus Hemingius and Moncus Stål, 1867 , as well as between Hemingius scaber and Moncus obscurus ( Dallas, 1851) .

The type of O. scaber (female from Brazil, Tapajós) deposited in the BMNH is, undoubtedly, of a species of Ochlerus ( Fig. 6 ). It has a long scutellum as described by Walker (1867) ( Fig. 6B ), but not extending to the apex of abdomen as in Moncus . We compared the type of O. scaber with the types of other species of Ochlerus ( Grazia & Campos 2010; Simões & Campos 2014; 2015), and based on general morphology and characters of the external genitalia (mainly the wide gonocoxites VIII, posteriorly sinuated and elevated, and the oval laterotergites IX; see Simões and Campos 2015, fig. 19) ( Figs. 6F, G ), we propose removing Ochlerus scaber from the synonymy with Ochlerus obscurus (= Moncus obscurus ), and considering O. scaber a senior synonym to Ochlerus cotylophorus Breddin 1910 ( Breddin, 1910; Simões and Campos 2015).

Figures

FIGURE 6. Ochlerus scaber Walker, 1867. Holotype female deposited in the BMNH, London. A, B, C, D, E, F, G; Labels, dorsal, ventral, head and pronotum, lateral view, genital plates in posterior view, and genital plates in ventroposterior view respectively. Scale bars = 4 mm.