Confluentia barriosi, Lanuza-Garay, 2022

Lanuza-Garay, Alfredo, 2022, A New Species of Confluentia Santos-Silva, Galileo & McClarin (Cerambycidae: Lamiinae: Colobotheini) from Panamá, Faunitaxys (London, England) 10 (36), pp. 1-3 : 1-2

Confluentia barriosi n. sp.

( Fig. 1-5 )

ZooBank:http://zoobank.org/ BFF6BAD5-E398-4E89-A1DA-5BEA4D173B2D

Holotype, ♂, Panama, Darien Province, Darien National Park, Rancho Frio Station , 21.iii-4.iv.2000. R. Cambra, A. Santos, and S. Bermudez leg. ( MIUP).

Description of the holotype ( Fig. 1 - 5 ).

Diagnosis. – Body slightly flattened. – Frons with irregular dark yellowish-brown areas. – Vertex dark brown; ventral mouthparts pale brown; apex of anteclypeus and labrum reddish brown. – Scape, pedicel, and antennomere III dark brown. – Antennomere IV pale yellow, apex dark brown; antennomere V dark brown. – Antennomeres VI–XI pale brown. – Genae dark brown. – Pronotum black centrally, yellowish-brown laterally. – Elytra mostly yellowish-brown, with large black macula along suture on basal third, black on posterior third, and narrow, longitudinal black macula close to epipleura on basal quarter. – Prosternal process with basal area pale yellow laterally. – Ventralsurface dark reddish-brown. – Coxae brown. – Base of pro - and mesofemora pale yellow. – Base of metafemora reddish-brown. – Remaining surface of femora darkbrown. – Tarsi reddish-brown, exceptpale yellow protarsomere III and tarsal claws. – Abdominal ventrites mostly brown.

Dimensions (mm)

– Total length, 8.75;

– Prothoracic length, 0.90;

– Anterior prothoracic width, 1.10;

– Posterior prothoracic width, 1.25;

– Widest prothoracic width (between apices of lateral tubercles), 1.50; – Humeral width, 1.65;

– Elytral length, 7.00.

Reviewers:

Antonio Santos-Silva (Universidade de São Paulo, Brazil) - Orcid: https://orcid.org/0000-0001-7128-1418

Head. – Frons with yellowish pubescence partially obscuring integument. – Area between antennal tubercles with wide yellowish pubescent band on each side of median groove; remaining surface of vertex with dark brown pubescence not obscuring integument. Area behind eyes with dense yellowish pubescence superiorly and inferiorly, distinctly less dense centrally. – Genae 1.2 times length of lower eye lobe; with yellowish pubescence not obscuring integument. – Antennal tubercles with yellowish pubescence partially obscuring integument. Distance between upper eye lobes 0.12 times length of scape (0.30 times distance between outer margins of eyes). – Antennae 1.64 times elytral length, reaching elytral apex at posterior quarter of antennomere VI. – Scape slightly sinuous, gradually widened toward apex; with dark pubescence nearly obscuring integument, with moderately long, erect, thick, dark setae ventrally. – Pedicel and antennomere III with dark pubescence nearly obscuring integument; with long, erect dark setae ventrally, distinctly sparser than on scape. – Remaining antennomeres with grayish-white pubescence not obscuring integument, appearing to be lighter, especially ventrally. – Antennomere IV distinctly narrowed from base to apex.

Antennal formula (ratio) based on length of antennomere III:

– Scape = 2.27. – Pedicel = 0.17. – IV = 1.17. – V = 0.88. – VI = 0.88. – VII = 0.88. – VIII = 0.88. – IX = 0.82. – X = 0.82. – XI = 0.64.

Thorax. – Prothorax 1.65 times wider than longer, widest area near posterolateral angles; lateral tubercles small, spiniform, directed backward, located near posterolateral angles. – Pronotum somewhat coarsely, sparsely punctate on basal quarter, with dense yellow pubescence on yellowish-brown area. – Sides of prothorax with yellowish pubescence not obscuring integument. – Ventral surface of thorax with yellowish-white pubescence not obscuring integument. – Prosternal process almost parallel-sided, apex slightly concave, narrowest area slightly wider than one-third of procoxa. – Mesoventral process not gradually narrowed toward apex; distal area 2.05 times width of mesocoxal cavity. – Scutellum with dark pubescence not obscuring integument.

Elytra. – Humeral and dorsal carinae well-marked; apex strongly notched close to outer spine, sutural angle rounded; coarsely, abundantly punctate except area near apex with finer, shallower punctures; black area with dark pubescence not obscuring integument, and light area with dense yellow pubescence.

Legs. – Femora with grayish-white pubescence dorsally, not obscuring integument, ventrally ¾ of basal half glabrous. – Protibiae with dark pubescence partially obscuring integument, bristly, brownish on apex of ventral surface; mesotibiae with dark pubescence partially obscuring integument, bristly and dark dorsally close to sulcus; metatibiae with dark pubescence partially obscuring integument, bristly, brownish on apex of ventral surface, with short, erect, sparse dark setae, more abundant dorsally on posterior third. – Metatarsomere I distinctly longer than II–III together.

Abdomen. – Ventrites with grayish-white pubescence not obscuring integument, darker on apex of ventrite 5; apex of ventrite 5 concave.

Etymology. – This species is named for my colleague, friend, and advisor for several years, Prof. Hector Barrios, University of Panama.

Figures

Fig. 1-5. Confluentia barriosi sp. nov., holotype ♂. 1. Dorsal habitus. 2. Ventral habitus. 3. Lateral habitus. 4. Head, pronotum, scape and forelegs, lateral view. 5. Head, frontal view.