Ceratopriomorphus Pic, 1922

Barancikova, Barbora, Nascimento, Elynton Alves Do & Bocakova, Milada, 2010, Review of the genus Ceratopriomorphus Pic, 1922 (Coleoptera: Lycidae), Zootaxa 2683 (1), pp. 61-65 : 62

Ceratopriomorphus Pic, 1922

( Figs. 1–14 )

Ceratopriomorphus Pic, 1922: 21 . Type species: Ceratopriomorphus humeralis Pic, 1922 (by monotypy).

Callanganum Pic, 1922: 21 . Type species: Callanganum piceum Pic, 1922 (by monotypy). Bocakova 2003: 230 (placed in synonymy of Ceratopriomorphus ).

Diagnosis. Median longitudinal carina on pronotum weak, often absent in apical portion. Antennae widely triangularly serrate, phallobase outline rather parallel-sided to laterally emarginate.

Redescription. Head with small eyes, interocular distance 1.3–1.5× longer than maximal eye diameter in lateral view, antennae ( Figs. 7–8 ) long, strongly triangularly serrate, reaching apical 1/5 of elytra. Antennomere 3 as long as 4 to almost 1.5× shorter than 4, length of antennomeres 4–11 slightly increasing apically. Mouth-parts vertical, mandibles arcuate, not shortened, labrum strongly transverse, moderately emarginate apically. Maxillary palpi short, rounded in cross-section, labial palpi minute, terminal palpomeres of both palpi pointed apically. Pronotum trapezoidal ( Figs. 4–6 ), considerably transverse, anterior margin 1.5– 2× shorter than basal margin. Anterior angles of pronotum slightly rounded, posterior angles acute, lateral margins considerably divergent posteriorly, arcuately emarginate. Pronotum with slight median longitudinal carina, channeled medially. Scutellum widely emarginate apically. Anterior thoracic spiracles small, not projected. Elytra elongate, slender, parallel-sided to dehiscent backwards, 3.5–4× longer than humeral width. Each elytron with 4 weak primary costae, secondary costae discontinuous to absent, costae weakened apically, intercostal intervals with double row of irregular reticulate cells basally. Prosternum trapezoidal, distal margin narrow, mesosternum transverse, trapezoidal, distal margin slightly rounded. Abdominal sternum 8 feebly emarginate apically, male sternum 9 proximally rounded. Legs slender, strongly compressed, trochanters short, tibiae straight, spurs small, hardly visible, tarsomere 4 lobed, lobes of tarsomere 2–3 residual. Male genitalia with simple, apically rounded phallus ( Figs. 9–14 ), parameres shorter than half of phallus, sometimes with 1–2 thorns apically, ventrobasal paramera fusion narrow, phallobase at most as long as half to 2/3 of phallus. Female unknown. Body length: 4.5–5.0 mm, humeral width: 1.0– 1.1 mm.

Distribution. South America: Brazil, Peru, Bolivia.

Figures

FIGURES 1–3. Habitus photographs of Ceratopriomorphus. (1) C. bolivianus sp. nov.; (2) Ceratopriomorphus humeralis; (3) Ceratopriomorphus piceus. Scales 1.0 mm.

Figures 4-8. (4–6) Head and pronotum in dorsal view. (4) Ceratopriomorphus bolivianus sp. nov.; (5) C. humeralis; (6) C. piceus; (7–8) Basal antennomeres. (7) Ceratopriomorphus bolivianus sp. nov.; (8) C. humeralis. Scales 0.5 mm.

FIGURES 9–14. Male genitalia ventrad and laterad. (9, 10) Ceratopriomorphus bolivianus sp. nov.; (11, 12) C. humeralis; (13, 14) C. piceus. Scale 0.5 mm.