Alyculus

Ata, Va C L Av Pa L & K, L A D I S L Av B O C A, 2012, Revision of the genus Alyculus Kazantsev, 1999 (Coleoptera: Lycidae), Zootaxa 3564, pp. 61-67 : 66

Key to males of the genus Alyculus

1. Pronotum with strong longitudinal keel reaching five sixths of the pronotal midline length ( Fig. 4 ), cranium with apparent celllike structure, male genitalia with slender phallus ( Fig. 10 )..................................... A. tujuhensis sp. nov.

- Pronotum without apparent longitudinal keel ( Figs 3, 5 ), cranium shiny or with fine irregular punctures, without apparent celllike structure......................................................................................... 2

2. Antennae slender, antennomere 3 at least 1.5 times longer than its width at apical part ( Figs 1, 8 )...................... 3

- Antennae robust, antennomere 3 apparently compressed, widest apically, 1.1 times longer than width at apex, subsequent antennomeres gradually slenderer, parallel-sided, less compressed to filiform ( Fig. 6 ), male genitalia with slender phallus, paramerae widest at basal third ( Fig. 11 ).................................................... A. barclayi sp. nov.

3. Body very small, less than 1.1 mm, testaceous, antennomere 3 is 1.5 times longer than width at apex ( Fig. 1 ), male genitalia with slender phallus widened basally ( Fig. 12 ).............................................. A. wittmeri Bocakova

- Body large, about 2.5 mm long, dark brown to black, antennae slender, antennomere 3 is 1.8 times longer than width at apex ( Fig. 8 ), male genitalia with short phallus ( Fig. 9 ).......................................... A. kurbatovi Kazantsev

Figures

FIGURES 1 – 8. General appearance: 1. Alyculus wittmeri Bocakova; 2. A. barclayi sp. nov. Pronotum: 3. A. wittmeri Bocakova; 4. A. tujuhensis sp. nov. Head, pronotum, and scutellum: 5. A. kurbatovi Kazantsev. Basal antennomeres: 6. A. barclayi sp. nov.; 7. A. tujuhensis sp. nov.; 8. A. kurbatovi Kazantsev. Scales 0.5 mm (Figs 1 – 2), 0.1 mm (Figs 3 – 8).

FIGURES 9 – 12. Male genitalia: 9. A. kurbatovi Kazantsev (redrawn from Kazantsev 1999, Fig. 4); 10. A. tujuhensis sp. nov. 11. A. barclayi sp. nov.; 12. A. wittmeri Bocakova. Scales 0.1 mm.