Cazeresia gracilis, Gómez-Zurita & Cardoso, 2025
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publication ID |
https://doi.org/10.3897/asp.83.e143543 |
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publication LSID |
lsid:zoobank.org:pub:9FC2F5B4-97ED-4E25-9ECF-7F670BB36DA5 |
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DOI |
https://doi.org/10.5281/zenodo.15594256 |
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persistent identifier |
https://treatment.plazi.org/id/0797B941-C904-5C28-A2D5-9A7195259D47 |
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treatment provided by |
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scientific name |
Cazeresia gracilis |
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sp. nov. |
Cazeresia gracilis sp. nov.
Figures 1 u View Figure 1 , 7 k View Figure 7 , 8 c View Figure 8 , 10 d View Figure 10
Material.
Holotype: Male (Fig. 10 d View Figure 10 ), JGZC-5213 , Bois du Sud , -22.17200 166.76111, 220 m, night, 18.x.2008, M. Wanat leg., Holotype Cazeresia gracilis sp. nov. Gómez-Zurita & Cardoso [red label] ( MNHW) GoogleMaps . — Paratypes: JGZC: 1 male, JGZC-5104 , Bois du Sud , -22.17200 166.76111, 220 m, night, 18.x.2008, M. Wanat leg., Paratype Cazeresia gracilis sp. nov. Gómez-Zurita & Cardoso [red label] GoogleMaps . MNHW: 1 female, Bois du Sud , -22.17200 166.76111, 220 m, at light, 17.x.2008, M. Wanat leg., Cazeresia gracilis sp. nov. Gómez-Zurita & Cardoso [red label] GoogleMaps ; 1 male and 4 females (three with: JGZC-5105 , JGZC-5214 and JGZC-5215 ), Bois du Sud , -22.17200 166.76111, 220 m, night, 18.x.2008, M. Wanat leg., Cazeresia gracilis sp. nov. Gómez-Zurita & Cardoso [red label] GoogleMaps ; 1 male and 1 female, Bois du Sud , -22.17200 166.76111, 220 m, at light, 26.x.2008, M. Wanat leg., Cazeresia gracilis sp. nov. Gómez-Zurita & Cardoso [red label] GoogleMaps .
Other material examined.
MNHW: 1 male, JGZC-5452 , Pic du Pin, base , 22°14.9’S 166°49.7’E, 280 m, forest and plantation, 25.xii.2006, M. Wanat and R. Dobosz leg. GoogleMaps
Description.
Body elongate elliptic, moderately convex. Mandibles, head, pronotum, hypomera and prosternum very dark brown, with slight bronze reflection; elytra, scutellum and ventral surfaces chestnut brown; labrum, antennae and legs testaceous, with apical antennomeres infuscate; palpi ochre. Length: 4.8 mm; width: 2.4 mm (range of male specimens: 4.1–4.8 mm long, 2.2–2.4 mm wide).
Frons with few small punctures anteriorly and supraocular sulci shortly prolonged medially to outer quarter of dorsal edge of supraantennal calli; clypeus with few small punctures basally and anterior border of clypeus moderately emarginate. Eyes large, separate on frons by less than 1.7 × their transverse diameter. Relative proportions of antennomeres: 1.8-1.0 - 1.5 - 1.8 - 2. 3-2.2 - 2.5 - 2.2 - 2.2 - 2.2 - 2.6. Surface of pronotum with scattered small punctures on disc and lateral declivities, more abundant in posterior half, without apparent micropunctures. Prosternal process about 0.75 × as wide as transverse diameter of procoxae. Elytra about 1.3 × as long as ensemble width at base, widest behind humeri; surface finely alutaceous, slightly shinier than pronotum, with relatively large punctures, smaller than intervals, rather confused anteriorly on disc. Basitarsomeres enlarged, as wide as third tarsomere in all tarsi, shorter than second and third tarsomeres combined in pro- and mesotarsi, and as long as these in metatarsi. Median apodeme of first abdominal ventrite about half as long as ventrite, arched, narrower than mesosternal process; all ventrites with fine microreticulation, sparse fine punctures and long fine, posteriorly adpressed pale yellow setae on first ventrite, shorter elsewhere. Penis (Fig. 7 k View Figure 7 ) slender, regularly curved ventrally, with sides slightly concave in ventral view, as wide preapically as wide at base; apex elongate elliptic, with long arched tip; gonopore short oval, with distal end separated from apex of penis by distance much longer than maximum width of gonopore; dorsal flap subtrapezoidal, as long as wide at apex, covering more than basal half of gonopore. — Females. Spermatheca (Fig. 1 u View Figure 1 ) J-shaped, with cornu shorter than nodulus, bent at acute angle relative to nodulus; nodulus subcylindrical, with short protruding insertion of spermathecal gland submedially, opposite to cornu; spermathecal duct thin, poorly sclerotized, inserted sublaterally at base of nodulus, oriented opposite to cornu in wide open arch, long, slightly enlarged distally from spermatheca with nearly four elongate coils.
Diagnosis.
This species is externally identical to the widespread C. parentalis sp. nov., with similar size and colouration, and they coexist in at least Bois do Sud. They have slight differences in pronotal microreticulation, with C. parentalis presenting finer microreticulation, with individual cells barely visible at 40 × magnification, thus appearing slightly duller than in C. gracilis . However, the only safe way to distinguish these species is by examination of their male and female genitalia, since the apical end of penis in C. gracilis sp. nov. is not markedly mucronate (compare Figs 7 f View Figure 7 and 7 k View Figure 7 ), and the spermatheca of this species is unlike any other of this group, J-shaped, with cylindrical nodulus and long, fine spermathecal duct with at least four coils (Fig. 1 u View Figure 1 ), while that of C. parentalis is more typical of the group, with a very characteristic short duct and enlarged single, incomplete coil (Fig. 1 b View Figure 1 ). Other almost indistinguishable species with arched apex of penis are C. laevigata sp. nov. and C. wanati sp. nov. The spermatheca assists in separating these species, but secondary micropunctation of pronotum in C. gracilis is more apparent, denser and more uniform than in the other species, and basal seam of punctures of pronotum are only shared with C. laevigata .
Derivatio nominis.
The species name, gracilis , is the Latin adjective (f.) meaning slender, in reference to the comparatively svelte profile of these beetles.
Distribution.
The species is only known from low elevations (160–250 m a. s. l.) in the small forest reserve of Bois du Sud, south from Lac de Yaté and the base of the nearby Pic du Pin, in the south of Grande Terre (Fig. 8 c View Figure 8 ).
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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Eumolpinae |
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