Leschenius undetermined
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publication ID |
https://doi.org/ 10.1111/j.1096-3642.2012.00833.x |
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persistent identifier |
https://treatment.plazi.org/id/C31D0351-FFCE-FFE2-FEC1-FCADFDC2FCB9 |
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treatment provided by |
Carolina |
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scientific name |
Leschenius undetermined |
| status |
SP. |
( FIGS 6–8 View Figures 1–6 View Figures 7–12 , 19–20 View Figures 13–24 , 31–32 View Figures 25–36 , 40 View Figures 37–42 , 45–46, 51)
Type material: Holotype. Female , 9.1 mm long, ‘ ECUADOR, AZUAY, VIA CUENCA LOJA, 5 km DE ONA, 13–I–1997, A. Paucar’ (PUCE). Genitalia dissected and placed in a vial with glycerine.
Allotype. Male, 9 mm long, same data as holotype (PUCE).
Paratypes. 1♀ 1♂ same data as holotype (PUCE) .
Etymology: this species is dedicated to Juan Manuel del Río, father of the first author.
Description: Female. Species medium-sized (LB, 8.8– 9.1 mm) ( Figs 6–7 View Figures 1–6 View Figures 7–12 ). Tegument visible, black, shiny, antennae reddish brown. Vestiture composed of scattered setae, whitish to cream; setae slightly more dense on sides of pronotum, and margins and posterior third of elytra. Rostrum short ( Figs 6–7 View Figures 1–6 View Figures 7–12 ) (LR/WRa, 1.03), sides slightly convergent towards apex (WRb/ WRa, 1.36), dorsum slightly depressed, foveolate– strigose, with longitudinal deep striae; median groove narrow, slightly exceeding posterior margin of eyes. Epistome slightly elevated. Eyes medium-sized and strongly convex. Frons foveolate–strigose. Vertex densely punctuate. Antennae ( Fig. 19 View Figures 13–24 ) (LB/LA, 2.25); scape reaching posterior margin of eyes. Funicular article 2 about 1.6¥ as long as article 1; funicular articles 3–4 slightly longer than wide, and funicles 5–7 moniliforms; club slightly fusiform (LC/WC, 2.38).
Pronotum ( Figs 6–7 View Figures 1–6 View Figures 7–12 ) slightly conical, moderately wider than long (WP/LP, 1.32); flanks moderately curved; disc densely foveolate at centre, and densely granulose on sides; median groove distinct; anterior margin slightly curved anteriad, slightly thickened; base posteriorly ‘V’–shaped. Scutellum large.
Elytra ( Figs 6–7 View Figures 1–6 View Figures 7–12 ) short (LE/WE, 1.37–1.39), with maximum width at middle, moderately convex; base more strongly posteriorly curved than in other species; striae with medium-size oval punctures, striae 9–10 not closer on posterior two-thirds; intervals slightly convex, slightly wider than striae; apex acute, entire, and projected.
Legs. Procoxae reaching anterior margin of prosternum; protibiae with row of nine or ten very acute, medium-sized denticles and large mucro; mesotibiae crenulate with minute mucro and metatibiae without denticles and mucro; metatibial apex with very narrow and denuded corbel; apical and dorsal comb subequal.
Abdomen ( Fig. 20 View Figures 13–24 ). Intercoxal portion of ventrite 1 broader than metacoxal cavities (1.7¥); ventrite 2 longer than ventrites 3 and 4 combined (1.5¥); apex of ventrite 5 slightly pointed; tergites I–VII slightly sclerotized.
Terminalia . Sternite VIII ( Fig. 31 View Figures 25–36 ) with plate subrhomboidal, not elongate, having apical tuft of long setae and shorter setae in apical margin; ‘V’–shaped sclerotization, with lateral arms reaching half of plate; apodeme about 3¥ longer than plate. Ovipositor ( Fig. 32 View Figures 25–36 ) shorter than ventrites 1–5 (0.80¥); with fine scattered setae on external side of baculi; ventral baculi subparallel; styli moderately wide, directed backwards. Spermathecal body ( Fig. 40 View Figures 37–42 ) subcylindrical, short; nodulus conical, short; ramus developed; cornu medium-sized; spermathecal duct ( Fig. 40 View Figures 37–42 ) short, slightly shorter than half ovipositor (~ 1.5 mm), membranous and wide.
Male ( Fig. 8 View Figures 7–12 ). Same size as female (9 mm). Rostrum slightly longer (L/W, 1.16) than in females and more distinctly conical (Wb/Wa, 1.45); eyes strongly convex; pronotum slightly wider than long (W/L, 1.35), longer (LE/LP, 2.30), more strongly curved on sides, with base strongly bisinuate and posterolateral angles projected backwards; scutellum smaller; elytra slightly slender and shorter (L/W, 1.34), with parallel sides, thickened base projected anteriad, punctures of striae larger; estriae 9 and 10 slightly approximate on posterior two-thirds; and posterior margin of ventrite 5 emarginate.
Genitalia (Figs 45–46). Median lobe with truncate rounded apex, almost in the same line (not forming angle) with its apodemes; median lobe plus apodemes slightly shorter than abdomen (0.93¥); apodemes shorter than remaining part of median lobe (0.75); endophallus with spines and a central long baculum with two lateral sclerites in the proximal area.
Comparative notes and diagnosis
Leschenius manueli sp. nov. is the sister species of L. bifurcatus sp. nov. (see comparative notes and diagnosis section of L. bifurcatus sp. nov.).
Leschenius manueli sp. nov. resembles L. rugicollis comb. nov. in the sculpture of pronotum (foveolate– granulose), the large scutellum, the elytra with maximum width at distal half, and by the metatibiae with combs subequal, corbel narrow, and with mucro small and only present in males. It differs from L. rugicollis comb. nov. by the less convex eyes, the much wider than long pronotum of the males, with strongly bisinuate base, by striae 9 and 10 not approximate on posterior two-thirds, by the ovipositor with conspicuous setae on sides of baculi, and by the apex of the median lobe rounded.
Distribution: Leschenius manueli sp. nov. is endemic to Ecuador (Azuay), where it occurs at about 2500 m a.s.l.
Remarks: The female paratype shows one of the elytra more developed and longer than the other. This examplar would be teratological.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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