Anillinus juliae Sokolov & Carlton

Sokolov, Igor M. & Carlton, Christopher E., 2010, New species of Anillinus Casey (Carabidae: Trechinae: Bembidiini) from the Southern Appalachians and phylogeography of the A. loweae species group, Zootaxa 2502, pp. 1-23 : 7-9

publication ID	https://doi.org/ 10.5281/zenodo.195855
DOI	https://doi.org/10.5281/zenodo.5694147
persistent identifier	https://treatment.plazi.org/id/03E75129-5D5E-FF5F-FF55-F9BEFAFAFED7
treatment provided by	Plazi
scientific name	Anillinus juliae Sokolov & Carlton
status	sp. nov.

Treatment

Anillinus juliae Sokolov & Carlton View in CoL , sp.n

( Figs. 2 View FIGURES 1 – 9 , 11 View FIGURES 10 – 13 , 21 View FIGURES 20 – 27 , 29 View FIGURES 28 – 35 , 36 View FIGURE 36 , 37 View FIGURE 37 , 38 View FIGURE 38 ; 39, Table 1 View TABLE 1 )

Type material. Holotype. Male labeled / USA – TN: McMinn Co., Starr Mtn., White Cliff at 35°20.067’ N 84°24.514’ W, 630m, oak forest, litter berlese 20 Oct 2007 Sokolov I.M. / HOLOTYPE, Anillinus juliae Sokolov and Carlton , des. 2008/. Deposited U.S. National Museum ( USNM). Type locality. U.S. A, TN, McMinn Co., north-eastern part of Starr Mountain, 35° 20.067’ N 84°24.514’ W. Paratypes (3). One male and two females with the same data as holotype. One female and one male bear labels /Molecular voucher # 42/ and /Molecular voucher # 43/, respectively.

Etymology. This species is named after Julia (=Yuliya) Sokolova, the wife of the senior author to commemorate her patience and wisdom during shared collection trips across the planet, and her constant help in sequence analyses of Anillinus .

Description. Medium for genus and comparatively small for the group (ABL range 1.61–1.84 mm, mean 1.72±0.100 mm, n=4). Habitus ( Fig. 2 View FIGURES 1 – 9 ) markedly convex, ovoid (WE/ABL 0.37±0.012), head normally proportioned for genus (WH/WPm 0.73±0.022), pronotum narrow compared to elytra (WPm/WE 0.79±0.003). Body color brunneorufus, appendages testaceous. Dorsal microsculpture distinct, covering pronotum and head except for two paramedian patches on vertex without microsculpture. Elytra with welldeveloped polygonal microsculpture.

Pronotum moderately convex and comparatively elongate (WPm/LP 1.29±0.016), with margins rectilinear and moderately constricted posteriad (WPm/WPp 1.29±0.035). Anterior angles evident, slightly prominent. Posterior angles slightly obtuse (100–110°). The distances between posterior angles and anterior angles approximately the same (WPa/WPp 0.98±0.028).

Elytra moderately convex, slightly depressed along suture, length normal for genus (LE/ABL 0.55±0.004), with traces of 1–2 interneurs. Humeri rounded, oblique, in outline forming an obtuse angle with longitudinal axis of body. Margins subparallel, slightly divergent in basal half, evenly rounded to apex, maximal width of elytra at midpoint. Elytra without subapical sinuation. Vestiture of elytra short (less than one-third of discal setae).

Prothoracic leg of males with strongly dilated tarsomere 1. Profemur moderately swollen. Metafemur unmodified. Laterotergite VII of males unmodified.

Median lobe ( Fig. 11 View FIGURES 10 – 13 a) evenly arcuate and twisted, with apex greatly enlarged (apex width ~ equal to the width of median lobe) and widely rounded. Ventral margin of median lobe moderately enlarged and with numerous poriferous canals. Canals sparsely distributed across walls of median lobe itself from the apex to the basal orifice. Dorsal copulatory sclerites forming long, waving filament-like structures extending beyond internal sac; the bases of sclerites with characteristic basal prolongations. Ventral sclerite and spines of internal sac absent. Left paramere ( Fig. 11 View FIGURES 10 – 13 b) not enlarged, paramere apex with four poriferous canals, bearing four long setae. Right paramere ( Fig. 11 View FIGURES 10 – 13 c) short, bearing four long setae, which are longer than the apical part of the paramere itself.

Spermatheca ( Fig. 21 View FIGURES 20 – 27 ) moderately sclerotized and S-shaped with wide curvatures of distal and proximal parts approximately equal in width. Cornu sclerotized distally with angulated sinuation ventrally, apically short and wide. Nodulus of medium length, ramus undifferentiated. Spermathecal duct more or less straight without definite coils. Stylomers and laterotergite IX as in Fig. 29 View FIGURES 28 – 35 . Stylomer 2 more than 1.5 times longer than wide, with thick ensiferous seta. Laterotergite bearing 8-9 setae.

Distribution. Known only from north-eastern slope of Starr Mountain, an isolated ridge in Polk and McMinn Counties, Tennessee.

Habitat. All beetles were collected by sifting litter on the top of the ridge. The locality is situated in xeric oak forest at moderate altitude (640 m).

Differential diagnosis. Anillinus juliae belongs to the small species of the loweae -group. It is distinguished from all other species in this group by the form of the median lobe and armature of the internal sac, and also by the characteristic shape of the spermatheca. Externally the new species is most similar to A. gimmeli , new species, described below, but is slightly more robust.

Anillinus juliae occurs sympatrically with one species of Anillinus from the langdoni -group and, possibly, one or two species of Serranillus . Externally, it can be distinguished from all species of Serranillus by differences in elytral vestiture, as discussed previously. The new species can be distinguished from representatives of the langdoni -group by the presence of patches lacking microsculpture on the head.