Cladocalon guatemalense, Nascimento & Bocakova, 2022

Nascimento, Elynton Alves Do & Bocakova, Milada, 2022, Cladocalon, a new genus of net-winged beetles from Central America and Mexico (Coleoptera: Lycidae), Zootaxa 5124 (5), pp. 577-584 : 583

Cladocalon guatemalense sp. nov.

Figs. 14 – 15 , 20

Type material: Holotype, male, GUATEMALA: “Sinanja, Vera Paz. Champion.” Secondary label: “ B.C.A.Col. III.(2). Calocladon histrionicum .”. ( NHMUK).

Diagnosis. C. guatemalense can be differentiated by the elongate yellow stripe reaching elytral midlength, branch of the third antennomere almost twice as long as antennomere, and by the male genitalia presenting phallus apically rounded and parameral apices curved and pointed ventrally in lateral view.

Description. Pronotum dark brown with lateral sides yellow. Elytra dark brown with yellow stripes from humeral region to basal half, not reaching primary costa 1, not reaching primary costa 1 ( Fig. 20 ). Trochanters light brown, femora dark brown, basal 1/5 light brown, tibiae dark brown.

Eye diameter 1.6× longer than interocular distance. Antennomere 3 – 5 subequal. Branch of antennomere 3 1.9× longer than antennomere. Mandibles arcuate. Labial palpi short, terminal palpomere obliquely truncate apically. Terminal palpomere of maxillary palpi rounded distally, palpomere 2 elongate, 1.7 longer than 3 and 1.2× longer than 4. Pronotum almost as long as wide medially, anterior angles rounded. Elytra 4.3× longer than humeral width, intercostal intervals with very irregular cells. Prosternum and mesosternum transverse, trapezoidal. Trochanters as long as third of femur length, tibiae dark brown, as long as femur. Phallus broad medially, almost as large as phallobase in ventral view, forming phallic folding projected ventrally in lateral view. Phallus distally wide and rounded. Parameral apices curved and pointed ventrally in lateral view, with a short median hook. Phallobase short, as long as phallus 1/3. Internal sac with conspicuous spiculae distally ( Figs. 14–15 ). Body length: 6.7 mm, humeral width: 1.4 mm.

Distribution: Guatemala.

Etymology: Named after the country of distribution.

Comments: Gorham (1884) considered individuals from this new species as a variety of Calocladon histrionicum , based mostly on color pattern but presenting longer humeral yellow stripe.

Figures

FIGURES 1–15. 1. male antennae of Cladocalon mexicanus sp. nov. 2. Terminal maxillary palpi of C. histrionicum comb. nov. 3–4: Pronotum. 3. C. chiriquense comb. nov., 4. C. histrionicum. 5. Male abdominal sternum 9 of C. chiriquense. 6-15: Male genitalia (lateral and ventral views, respectively). 6–7. C. chiriquense. 8–9. C. bugabense sp. nov.10–11. C. histrionicum.12–13. C. mexicanus sp. nov. 14–15. C. guatemalense sp. nov. Scales: 0.25 mm (Fig. 2), 0.5 mm (Figs. 1, 3-15).

FIGURES 16–20. Habitus: 16. Cladocalon chiriquense comb. nov. 17. C. bugabense sp. nov. 18. C. histrionicum. comb. nov.19. C. mexicanus sp. nov. 20. C. guatemalense sp. nov. Scales: 1.0 mm.