Baeocera bottine, Groll, 2025

Baeocera bottine sp. nov.

urn:lsid:zoobank.org:act:8ECC11F2-94CB-49C9-8EB6-6688882705A1

Figs 1A–B, G View Fig , 29–33 View Fig View Fig View Fig View Fig View Fig

Diagnosis

Body length: 1.16–1.22 mm. Dark brown; legs ochreous, femora darker on anterior ⅔.Antennomeres IX– XI oblong. Mesepimeron width approximately 0.62 of the mesanepisternum width, and 2.90 × as wide as long. Submesocoxal lines arcuate, punctate; submesocoxal area = 0.05 mm. Basal striae connected to sutural and reaching approximately the outer ⅔ of the basal width. Aedeagus with thin parameres, with a shallow lobe near apex in frontal view. Tergite VIII in females with posterior projection. Distal gonocoxite triangular, elongate.

Etymology

The species epithet is a French noun in apposition, meaning ‘boot’, in allusion to the female ovipositor’s resemblance to Victorian ladies’ boots.

Material examined

Holotype

BRAZIL • ♂ *; Minas Gerais, Viçosa, EPTEA Mata do Paraíso ; 14 Apr. 2022; E. von Groll et al. leg.; “Falcon 42 / Em Ceratiomyxa fruticulosa em Pinus / Dissecado em 21.x.2022 / HOLOTYPUS ♂ ”; CELC. ( Fig. 29D–E View Fig )

Paratypes

BRAZIL • 1 ♀ **; same collection data as for holotype; 10 Mar. 2022; E. von Groll et al. leg.; “Falcon 26 / Em Ceratiomyxia fruticulosa em Pinus ”; CELC • 1 ♀ **; same collection data as for holotype; 24 Mar. 2022; E. von Groll et al. leg.; “Falcon 20 / Em Ceratiomyxia fruticulosa em Pinus ”; CELC .

Description

COLOURATION. Dark brown; mouthparts and tarsi yellow; antennae, posterior area of femora, and tibiae, ochreous; frons, coxae, and anterior ⅔ of femora dark ochreous ( Fig. 29A–C, F–G View Fig , 32A–D View Fig , 33G View Fig ). Variations: (1): all structures paler; (2) abdominal ventrites III–VI ochreous ( Figs 29G View Fig , 33H View Fig ). Colouration of legs varies with viewing angle; for example, Figures 29G View Fig and 33G View Fig show the same specimen photographed at different angles. In Figure 33G View Fig , the leg coloration appears darker and more accurate.

HEAD ( Figs 29H–M View Fig , 30A–G View Fig ). Frons with sparse punctures; one fovea above each eye. Labrum almost straight posteriorly ( Fig. 30A View Fig ). Maxillary palpomere III elongate and not distinctly curved; IV, thin ( Fig. 30D, G View Fig ). Labial palpomere II curved; mentum slightly concave posteriorly ( Fig. 30E, G View Fig ). Gular pores sparse ( Fig. 30F View Fig ). Antennae not distinctly elongate ( Fig. 29K–M View Fig ). Antennomere VII just slightly longer than VIII; IX–XI oblong; antennomere proportions (n=3): I 71/32: II 63/32: III 30/15: IV 39/14: V 45/14: VI 39/15: VII 46/22:VIII 44/22: IX 62/35: X 64/38: XI 90/40.

PROTHORAX ( Fig. 30H–M View Fig ). Punctation sparse; pubescence short. Hypomeron subglabrous, impunctate ( Fig. 31D–E View Fig ). Prosternal process acute in lateral view ( Fig. 30L View Fig ). Profurca thin and short ( Fig. 30M View Fig ).

MESOTHORAX ( Fig. 31A–E View Fig ). Scutellum visible in dorsal view ( Fig. 30H View Fig ), wider than long; slightly triangular ( Fig. 31A View Fig ). Mesoventral lines smoothly curved ( Fig. 31B View Fig ). Median lines curved and open ( Fig. 31B View Fig ). Mesepimeron 2.90 × as wide as long and about 0.62 × the width of the mesanepisternum; variations: 2.33 × as wide as long and about 0.67 × the width of the mesanepisternum. ( Fig. 31D–E View Fig ). Mesoventral process oblong in lateral view ( Fig. 31C View Fig ).

METATHORAX ( Fig. 31B–C View Fig ). Metaventrite smooth, shining, pubescence moderately sparse. Submesocoxal lines strongly arcuate; punctate; submesocoxal area length: 0.05–0.06 mm ( Fig. 31D–E View Fig ). Metanepisternal suture dashed, more or less convex ( Fig. 31D–E View Fig ). Metanotum with alacrista trapezoidal-shaped, longer than wide; scutoscutellar suture lateral end at same position as apodeme ( Fig. 31F View Fig ). Arms of metendosternite slightly thicker than stalk ( Fig. 31G–H View Fig ).

WINGS ( Fig. 29A, F, I–K View Fig ). Elytra with sparse and fine punctures – similar to pronotum; pubescence short. Basal striae connected to sutural, impunctate, and reaching approximately the outer ⅔ of the basal width ( Fig. 29F View Fig ). Lateral striae fine, impunctate, and curved near humeral region ( Fig. 29C, G View Fig ).

LEGS. Thin, elongate, not microsculptured ( Figs 32A–C View Fig , 33A–F View Fig ).

ABDOMEN. Submetacoxal lines coarse punctate ( Fig. 29B, G View Fig ). Ventrite I shining; pubescence dense; finely punctate. Propygidium dense and coarsely punctate; micropunctured; pubescence dense ( Figs 32D View Fig , 33H View Fig ).

Males

Protibiae slightly curved ( Fig. 32A View Fig ). Pro- and mesotarsomeres I–III widened, bearing tenent setae ( Fig. 32A–B View Fig ). Sternite VIII with an acute posterior projection ( Fig. 32E View Fig ). Tergite VIII with a small projection ( Fig. 32F View Fig ). Tergite IX with curved ventral struts ( Fig. 32G View Fig ). Sternite IX elongate and oblong posteriorly ( Fig. 32H View Fig ). Tergite X triangular ( Fig. 32I View Fig ).

AEDEAGUS ( Fig. 32J–O View Fig ). Median lobe slightly curved in lateral view; basal bulb similar in length as apical lobe, and poorly sclerotized; apical lobe more sclerotized ( Fig. 32J–L View Fig ). Parameres thin and parallel, with a small posterior constriction in frontal view ( Fig. 32J View Fig ). Sclerite of internal sac curved, flagellum thin and very elongate ( Fig. 32M–O View Fig ).

MEASUREMENTS (n=1, holotype; in mm). TL 1.16, SY 0.12, HW 0.32, IS 0.14, WA 0.06, PL 0.49, PA 0.32, PB 0.66, SL 0.01, SW 0.04, EI 0.76, EL 0.81, EW 0.37, EH 0.32, MsW 0.17, MeL 0.04, MeW 0.16, MB 0.10, MC 0.27, ML 0.05, VL 0.14, PrF 0.27, PrT 0.20, MsF 0.32, MsT 0.28, MtF 0.37, MtT 0.32.

Females ( Figs 29L–M View Fig , 33 View Fig )

Antennomeres VI–X thicker than those of males ( Fig. 29L–M View Fig ). Ventrite and tergite VIII with a triangular posterior projection ( Fig. 33I–J View Fig ). Spermatheca filiform ( Fig. 33K View Fig ). Distal gonocoxite triangular and distinctly longer than wide, gonostylus rectangular ( Fig. 33K–M View Fig ).

MEASUREMENTS (n =2; in mm; * =invariant). TL 1.22 *, SY 0.11 *, HW 0.32–0.34 (0.33 ± 0.01), IS 0.15– 0.16 (0.16± 0.01), WA 0.08–0.10 (0.09 ±0.01), PL 0.47–0.51 (0.49 ± 0.03), PA 0.35 *, PB 0.69–0.70 (0.70 ± 0.01), SL 0.02–0.03 (0.03± 0.01), SW 0.05–0.06 (0.06 ± 0.01), EI 0.76–0.77 (0.77 ± 0.01), EL 0.83–0.85 (0.84 ± 0.01), EW 0.38–0.40 (0.39± 0.01), EH 0.36–0.38 (0.37 ± 0.01), MsW 0.17–0.18 (0.18 ± 0.01), MeL 0.03–0.04 (0.04± 0.01), MeW 0.12–0.17 (0.15± 0.04), MB 0.11–0.12 (0.12± 0.01), MC 0.27–0.28 (0.28± 0.01), ML 0.05–0.06 (0.06 ± 0.01), VL 0.18–0.19 (0.19 ±0.01), PrF 0.29 *, PrT 0.21–0.22 (0.22 ±0.01), MsF 0.34–0.35 (0.35± 0.01), MsT 0.24–0.27 (0.26 ± 0.02), MtF 0.36–0.37 (0.37 ± 0.01), MtT 0.31–0.32 (0.32 ±0.01).

Host

Collected from Ceratiomyxa fruticulosa on a fallen Pinus sp. tree ( Fig. 1G View Fig ).

Remarks

Similar to B. pulga sp. nov. but differs by the smaller body length, the more oblong antennomeres VII– XI, the spoon-like sternite IX, the more parallel parameres, the curved sclerite of internal sac, and the more elongate distal gonocoxite in females.

Distribution

Mata do Paraíso, Universidade Federal de Viçosa, campus of Viçosa, state of Minas Gerais, Southeast Brazil ( Fig. 1A–B View Fig ).