Falsamblesthis rogueti, Vlasak & Santos-Silva, 2025

Falsamblesthis rogueti sp. nov.

( Figs 102–107 View FIGURES 102–109 )

Description. Female holotype. Integument mostly dark brown; ventral mouthparts brownish, more reddish brown on some areas depending on light intensity, except dark-brown mentum and maxillary palpomeres IV and labial palpomeres III dark brown, more dark reddish brown depending on light intensity; anteclypeus dark yellowish brown centrally; labrum mostly dark yellowish brown on anterior third; pedicel dark reddish brown; antennomere III dark reddish brown, except dark-brown apical eighth of dorsal and lateral surfaces, and apical third of ventral surface; antennomere IV reddish brown, except dark-brown apical eighth of dorsal and lateral surfaces, and apical third of ventral surface; antennomeres V and VII orangish brown about basal 2/3, dark brown on apical third; antennomere VI orangish brown, except dark reddish-brown central third of dorsal and lateral surfaces, dark-brown apical third of dorsal and lateral surfaces, and dark-brown apical half of ventral surface; antennomeres VIII–X orangish on basal third, dark brown on remaining surface; antennomere XI orange on basal half, mostly dark brown on apical half. Tibiae dark reddish brown on some areas, less so depending on light intensity. Tarsi dark reddish brown, lighter depending on light intensity.Apex of abdominal ventrites 2–3 dark reddish brown; apex of ventrite 4 dark yellowish brown; posterocentral area of ventrite 5 reddish brown, more orangish brown depending on light intensity.

Head. Frons moderately abundantly, coarsely punctate; with abundant dull yellowish-brown pubescence partially obscuring integument, slightly denser on some areas; with moderately short, bristly, slightly thick whitish setae interspersed; with a few long, erect pale setae interspersed close to eyes. Antennal tubercles and area between them with dense yellowish-brown pubescence. Remaining surface of vertex abundantly, coarsely punctate; with very sparse dull yellowish-brown pubescence and short, bristly, slightly thick whitish seta emerging from nearly all punctures, this area distinctly triangularly shaped. Superior region behind upper eye lobes with narrow yellowish-brown pubescent band close to eye, this pubescent area obliquely, gradually widened toward inferior region; remaining superior region with very sparse yellowish-brown pubescence and short, bristly, slightly thick white setae emerging from punctures. Area behind lower eye lobes with abundant dull yellowish-brown pubescence, slightly denser and yellower close to eye; with a few long, erect yellowish-white setae interspersed. Genae 0.62 times length of lower eye lobe in frontal view; with abundant dull yellowish-brown pubescence, slightly sparser on some areas, and a few long, erect yellowish-white setae interspersed. Widest central area of postclypeus with abundant dull yellowish-brown pubescence centrally and laterally close to anteclypeus, sparser on remaining surface; with long, erect yellowish-brown setae near frons, and moderately long dull yellowish-brown setae directed forward close to anteclypeus. Sides of postclypeus mostly glabrous. Labrum with moderately sparse whitish pubescence close to anteclypeus, long, bristly yellowish-white setae on remaining posterior half, pubescence absent on anterior half, except dense tuft of yellowish-brown setae centrally on anterior margin; with abundant, long, erect yellowish-brown setae interspersed about middle and sides of anterior half. Gulamentum with sparse yellowish-brown pubescence. Distance between upper eye lobes 0.19 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.53 times distance between outer margins of eyes. Antennae 1.9 times elytral length, reaching elytral apex at apical third of antennomere VII. Scape with dense dull yellowish-brown pubescence on outer side of dorsal surface and superior half of outer surface, and moderately sparse whitish pubescence on remaining surface; with long, erect yellowish setae on sides and ventral surface. Pedicel with pubescence as on scape; with long, erect yellowish setae interspersed ventrally. Antennomeres III–XI with abundant yellowish pubescence not obscuring integument; with long, erect yellowish setae interspersed ventrally; with a few long or short yellowish setae on dorsal apex of some antennomeres. Antennal formula based on length of antennomere III: scape = 0.67; pedicel = 0.15; IV = 1.15; V = 0.93; VI = 0.78; VII = 0.67; VIII = 0.55; IX = 0.55; X = 0.49; XI = 0.51.

Thorax. Prothorax slightly wider than long, distinctly wider when including lateral tubercles; lateral tubercles spiniform, located slightly after middle. Pronotum abundantly, coarsely punctate; with one conical tubercle on each side of anterior half, and elongated central tubercle from about middle to posterior quarter; with abundant, minute yellowish-brown pubescence distinctly not obscuring integument (same pubescence as on triangular area on vertex), except abundant dull yellowish-brown pubescence laterally, dense, narrow yellowish-brown pubescent band close to posterior margin, and dense yellow pubescent macula posterocentrally; nearly all punctures with minute, slightly thick white seta; with sparse, long, erect brownish setae interspersed throughout. Sides of prothorax with sculpturing and setae as on pronotum, and pubescence as on sides of pronotum. Prosternum abundantly, coarsely punctate; with abundant dull yellowish-brown pubescence not obscuring integument; with minute whitish seta emerging from each puncture; with a few long, erect yellowish setae interspersed. Prosternal process with dense yellowish-white pubescence, except almost glabrous sides of apical region; with long, erect yellowish-white setae interspersed; narrowest area 0.14 times procoxal width. Mesoventrite abundantly, coarsely punctate; with abundant grayish-white pubescence anterocentrally, abundant dull yellowish-brown pubescence on remaining central area, and dense yellowish-brown pubescence laterally. Mesanepisterna with dense yellowish-brown pubescence. Mesepimera with dense yellowish-brown pubescence close to elytra, moderately sparse on wide central area, and abundant close to mesocoxal cavity. Mesoventral process with abundant yellowish-white pubescence, longer from basal third; with long, erect yellowish-brown setae interspersed; apical margin centrally emarginated; narrowest area 0.32 times mesocoxal width. Metanepisterna and metaventrite with dense yellowish-brown pubescence, slightly sparser on center of metaventrite. Scutellum with dense yellow pubescence, except glabrous anterocentral region. Elytra. Abundantly, coarsely punctate on basal quarter, punctures gradually sparser toward apex on remaining surface; with abundant dull yellowish-brown pubescence, interspersed with abundant, irregular areas with minute yellowish-brown pubescence, slightly sparser than dull yellowish-brown pubescence; many punctures with moderately short, bristly, thick white or brown setae; apex slightly obliquely truncate. Legs. Pro- and mesocoxae with abundant yellowish-white pubescence; metacoxae with abundant dull yellowish-brown pubescence. Trochanters with abundant whitish pubescence, dense ventrally, and a few long, erect whitish setae interspersed ventrally. Femora with abundant yellowish-white pubescence not obscuring integument, denser ventrally, appearing yellower depending on light intensity, and short, thick, bristly white setae interspersed on dorsal and superior region of outer surface. Protibiae with sparse white pubescence dorsally, laterally, and on basal third of ventral surface, and dense, bristly yellowish-brown pubescence on remaining ventral surface; with long, erect yellowish-white setae interspersed dorsally and laterally. Meso- and metatibiae with sparse white pubescence on basal half of dorsal and ventral surfaces and entire lateral surfaces, and abundant, erect, moderately short light yellowish-brown setae on apical half of dorsal and ventral surfaces; with long, erect yellowish-white setae interspersed. Tarsomeres with moderately sparse whitish pubescence, and long, erect whitish setae interspersed; metatarsomere I about as long as II–III together.

Abdomen. Ventrites with dense dull yellowish-brown pubescence laterally, slightly sparser centrally on ventrites 1–4, interspersed with a few moderately short, bristly, thick white setae with glabrous spot around them, except glabrous central apex of ventrites 1–4 and short, longitudinal anterocentral region on ventrite 5, and abundant yellowish-white pubescence on posterior third of ventrite 5. Basal half of ventrite 5 with narrow sulcus, distinctly widened and deeper on its apical half; apex of ventrite 5 distinctly, abruptly depressed, apical margin concave centrally.

Dimensions (mm). Total length, 14.70; prothoracic length, 2.45; anterior prothoracic width, 2.50; posterior prothoracic width, 2.65; maximum prothoracic width, 3.20; humeral width, 4.30; elytral length, 11.00.

Type material. Female holotype from ECUADOR, Loja: Utuana , 2500 m, collected as pupa, 22 Feb 2024, J. Vlasak leg. ( MZSP, formerly JVCO) .

Etymology. We are pleased to name this species for Jean-Philippe Roguet in recognition of his contribution to the study of Lamiinae .

Remarks. Falsamblesthis rogueti sp. nov. is similar to F. pilula Galileo & Martins, 1987 , but differs as follows: scape not piriform; lateral tubercles of prothorax spiniform; and thick setae on elytra longer and whitish. In F. pilula , the scape is piriform, the lateral tubercles of the prothorax are conical, and the thick setae on the elytra are shorter and dark. It differs from F. seriepilosa (Kirsch, 1889) ( Figs 108–109 View FIGURES 102–109 ) by the distance between upper eye lobes 2.0 times the width of one upper lobe (3.0 times in F. seriepilosa ), the scape is elongated (shorter and somewhat piriform in F. seriepilosa ), and the lateral tubercles of the prothorax are spiniform (conical in F. seriepilosa ); from F. taeniata (Belon, 1903) especially by the elytra without dark longitudinal band laterally (present in F. taeniata ); and from F. microps Martins & Galileo, 1992 , by the scape not clavate (clavate in F. microps ), the elytral apex obliquely truncate (rounded in F. microps ), and elytra with whitish and brown thick setae (only brown setae in F. microps ).

Key to species of Falsamblesthis View in CoL (adapted from Galileo & Martins 1987)

1. Elytral pubescence with thick setae interspersed, sometimes setae very short and more distinct on apical region........... 2

- Elytral pubescence with long, erect slender setae interspersed.................................................. 6

2(1). Elytra with dark longitudinal area laterally. Bolivia...................................... F. taeniata (Belon, 1903) View in CoL

- Elytra without dark longitudinal area...................................................................... 3

3(2). Thick elytral setae whitish, or both whitish and brown, well contrasting with elytral pubescence....................... 4

- Thick elytral setae yellowish-brown or brownish, very short and slightly contrasting with elytral pubescence............. 5

4(3). Distance between upper eye lobes 3.0 times width of one upper lobe; mesanepisterna ( Fig. 109 View FIGURES 102–109 ) with sparse coarse punctures. Ecuador....................................................................... F. seriepilosa (Kirsch, 1889) View in CoL

- Distance between upper eye lobes 2.0 times width of one upper lobe; mesanepisterna ( Fig. 107 View FIGURES 102–109 ) lacking coarse punctures. Ecuador............................................................................... F. rogueti sp. nov.

5(4). Lower eye lobes slightly longer than gena; pronotum without gibbosities. Venezuela.... F. microps Martins & Galileo, 1992 View in CoL

- Lower eye lobes twice as long as gena; pronotum with gibbosities. Colombia............ F. pilula Galileo & Martins, 1987 View in CoL

6(1). Mesanepisterna without coarse punctures.................................................................. 7

- Mesanepisterna with coarse punctures..................................................................... 9

7(6). Sides of metaventrite smooth. Ecuador............................................. F. macilenta (Gounelle, 1910) View in CoL

- Sides of metaventrite abundantly, coarsely punctate.......................................................... 8

8(7). Distance between upper eye lobes about 1.5 times width of one upper lobe; vertex with yellow pubescence throughout. Peru................................................................... F. uniformis Galileo & Santos-Silva, 2016 View in CoL

- Distance between upper eye lobes greater than twice width of one upper lobe; pubescence between antennal tubercles and remaining surface of vertex with different color. Brazil ( Bahia, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul)................................................ F. ibiyara Marinoni, 1978 View in CoL

9(6). Lateral tubercles of prothorax robust, with blunt apex; distance between upper eye lobes (male) slightly greater than width of one upper lobe; scape robust, with diameter three times that of antennomere III; punctation of mesanepisterna and sides of metaventrite composed of large and deep punctures. Bolivia......................... F. unguicularis (Tippmann, 1960) View in CoL

- Lateral tubercles of prothorax slender, strongly acuminate and directed backward; distance between upper eye lobes (female) almost twice width of one upper lobe; scape slender, with diameter twice that of antennomere III; punctation of mesanepisterna and sides of metaventrite composed of small and shallow punctures. Ecuador............... F. candicans (Gounelle, 1910) View in CoL

HEMILOPHINI View in CoL