Glyptoma luae Klemann-Junior, Moura, Irmler & Asenjo, 2025

Glyptoma luae Klemann-Junior, Moura, Irmler & Asenjo , sp. nov.

https://zoobank.org/ urn:lsid:zoobank.org:act:43CC70E2-4C6E-46A1-BE67-41F6B1CD5EAD

( Figs 2A–C View FIGURE 2 )

Type material (15 ♂♂, 8 ♀♀).

Holotype: BRAZIL: ♂, labeled: “Brasil: AM, Carauari | Sítio da Tia Neuza , Manual | 01.i.2020, Madeira podre | 4 °49’22.73’’S / 66°54’25.30’’W | R.S.Moura | CESIT - UEA”, “HOLOTYPE | Glyptoma | luae sp. nov. | Desig. Klemann-Junior et al. 2024” ( INPA) GoogleMaps . Paratypes (14♂♂, 8♀♀), labeled: “Brasil: AM, Itapiranga | Faz. Caribi - Madeira podre | 16.xii.2019 | 2°32’55.74’’S / 58°48’24.21’’W | L.Klemann-Junior; R.S.Moura | CESIT - UEA” (5♂♂, 1♀ INPA) GoogleMaps ; “Brasil: AM, Itapiranga | Faz. Caribi - Madeira podre | 17.xii.2019 | 2°32’50.48’’S / 58°48’23.16’’W | R.S.Moura; L.Klemann-Junior | CESIT - UEA” (2♂♂ CEMT, 2♂♂ UFPR, 1♀ INPA; 2♀♀ UEA) GoogleMaps ; “Brasil: AM, Carauari | Col. Manual (Mad. Podre) | 05.i.2020 | 4°49’22,73’’S / 66°54’26,30’’W | R.S.Moura; A.S.Santos | CESIT - UEA” (1♀ CEMT) GoogleMaps ; “Brasil:AM [Amazonas state], Carauari | Sítio da Tia Neuza , Manual | 01.i.2020, Madeira podre | 4°49’22.73’’S / 66°54’25.30’’W | R.S.Moura | CESIT - UEA” (3♂♂ UEA, 1♂ CEMT, 1♂ UFPR, 1♀ CEMT, 2♀♀ UFPR). GoogleMaps All paratypes with yellow label “PARATYPE | Glyptoma | luae sp. nov. | Desig. Klemann-Junior et al. 2024”.

Labels abbreviations, translations, and explanations: AM = Amazonas state; CESIT - UEA = Centro de Estudos Superiores de Itacoatiara - Universidade do Estado do Amazonas = written in a vertical line on the left side; Col. Manual (Mad. podre) = Coleta Manual (Madeira Podre) = captured manually under bark in decaying trunks and branches; Faz. = Fazenda = farm; Madeira podre = captured manually under bark in decaying trunks and branches; Manual = captured manually.

Diagnosis. Among species of the G. cognatum group (with size between 1.8 and 3.2 mm, the setiferous punctures on the pronotum and elytra are at least partly shiny) G. luae sp. nov. is as long as G. schuhi and G. obscuricolle . However, G. luae can be differentiated from these two species by the presence of two almost regular and parallel rows of punctures along the entire length of the space between the suture and discal carina (at least partly three irregular rows of punctures in G. schuhi and two irregular rows of elongate punctures in G. obscuricolle ); by the head, pronotum and elytra without microsculpture (isodiametric microsculpture in G. obscuricolle ); by the larger punctures on the head (finely punctuate on G. obscuricolle ); and by the distinctive form of the aedeagus. The median lobe of the aedeagus of G. luae is longer than the median lobe of G. obscuricolle . The basal bulb of G. luae , at the point of insertion of the parameres, has a straight upwards line before curved to the median lobe, whereas in G. obscuricolle has a downwards curve (in lateral view with apex pointed to right) before curved to the median lobe. Parameres of the aedeagus of G. luae is bigger (reaching almost the half of the median lobe), sinuate, and with a “J” shape, whereas in G. schuhi is short (reaching the basal fourth of the median lobe) and slightly sinuate.

Description. Holotype male, BL: 3.13 mm, FL: 1.5 mm.

Coloration: dark reddish brown; antennae and legs light reddish brown.

Head ( Figure 2A View FIGURE 2 ) wider (HW: 0.51) than long (HL: 0.40); subrectangular; with rounded hind and anterior angles; large eyes slightly prominent and longer than temples; sides in front of eyes parallel up to base of antennae; at base of antennae with almost rectangular angle that narrowed to anterior edge of clypeus in a sinuate curve; anterior edge of clypeus less wide than half of width between base of antennae. Head with setiferous punctures moderately dense and deep; punctures not elongate; each puncture with a yellow seta; on average, interstices between punctures less wide than half of diameter of punctures. Integument and punctures of head without microsculpture, shiny. Neck appearing matt due to dense microsculpture formed by uniformly distributed micropunctures. Antenna ( Figure 2B View FIGURE 2 ) slightly longer than head and pronotum together; antennomeres 2–10 gradually and smoothly widening anteriorly; antennomere 2 slightly narrower than antennomere 1; antennomeres 2–10 slightly wider than long; antennomere 11 narrower and longer than antennomere 10; all antennomeres with numerous long yellow setae; setae approximately as long as width of antennomeres.

Pronotum ( Figure 2A View FIGURE 2 ) wider than long (PL: 0.43; PW: 0.48); widest in anterior third; narrowed to anterior widely rounded angles in smooth convex curve; narrowed to posterior obtuse angles in smooth concave curve. Pronotum with setiferous punctures dense and deep; with some coalescent punctures without evident ridges; each puncture with a yellow seta; width of punctures irregular; interstitial ridges between punctures of variable size. Integument of pronotum without microsculpture; surface of punctures with few micropunctures; shiny.

Elytra ( Figure 2A View FIGURE 2 ) wider than pronotum; longer than wide (EL: 0.67; EW: 0.62); wildest in middle; shoulders well developed and rounded; posterior angles rounded; anterior edge of elytra concave. Discal carina distinct; partly irregular or broken due to the punctures; slightly curved outward. Lateral carina indistinctly restricted shortly behind shoulders. Suture marked by line of 9–10 smaller, coalescent, setiferous punctures. Space between suture and discal carina with two almost regular and parallel rows of setiferous punctures along entire length of elytra, each row with 8 to 9 elongated punctures; some coalescent punctures without evident ridges. Laterally to discal carina another two almost regular and parallel rows of setiferous punctures along entire length of elytra; more lateral to these two lines, slightly smaller sparse setiferous punctures present. Each puncture with a yellow seta; setae in asymmetric position to centre of punctures; interstices of the punctures mostly restricted to small ridges. Integument of elytra without microsculpture; surface of punctures with few micropunctures; shiny.

Legs ( Figure 2A View FIGURE 2 ) almost completely covered with yellow setae; surface appearing matt, with transverse striate microsculpture.

Abdomen with dense and large setiferous punctation; each with one yellow seta; interstices between punctures restricted to small ridges; punctures on segments 3-6 deep; punctures on segments 7 and 8 less deep. Surface of abdomen with microsculpture formed by uniformly distributed micropunctures; micropunctures less deep on interstices between punctures and on segments 7 and 8; segments 3–6 appearing matt, except for shiny intersticies between punctures; segments 7 and 8 appearing shiny; anterior border of all segments appearing matt due to presence of micropunctures; posterior border of all segments appearing shiny due to absence of micropunctures.

Aedeagus as in ( Figure 2C View FIGURE 2 .) In lateral view, paramere small and pointed, slightly sinuate, with its apex reaching half of median lobe. Median lobe in lateral view curved, bulbous at base, with its apical region converging to narrow pointed apex; apical region with numerous sensilla.

Female similar to male.

Variation. Total length 3.0 to 3.2 mm. Three specimens are lighter reddish brown; punctures and interstices pattern on the head, pronotum and elytra, and shapes of the antennomeres were consistent among the specimens examined.

Habitat. Captured manually under bark in decaying trunks and branches. The capture sites are destined for selective logging or rural production and the vegetation is second-growth Evergreen Tropical Forest “Floresta Ombrófila Densa de Terras Baixas” ( Veloso et al. 1991).

Distribution. Known from the municipalities of Itapiranga and Carauari in Amazonas State, Brazil.

Etymology. The species is named after the daughter of the two first authors, Lua de Moura Klemann; it is a noun in apposition.