Gelae

Miller, Kelly B. & Wheeler, Quentin D., 2004, Two New Genera of Agathidiini from the Nearctic and Neotropical Regions (Coleoptera: Leiodidae), The Coleopterists Bulletin 58 (4), pp. 466-487 : 473

Key to the Species of Gelae

1. Size very small (TBL, 2.00 mm); male median lobe relatively slender in both lateral and ventral aspects ( Figs. 3–4 ), operculum apically broadly rounded, not emarginate or elongate and slender ( Fig. 3 ), endophallus including two moderately long, strut-like processes that often extend out of orifice ( Fig. 3 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G. fish , new species

— Size larger, TBL ¼ 2.00– 3.50 mm; male median lobe very broad or slender, operculum apically with medial emargination, though this may be small in some species, or with operculum very long and slender, endophallus without long, strut-like apical processes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2

2(1). Metasternum relatively narrow medially (MTL/MTW, 0.30) - - - - - - - - - - - - - - - - - - - - 3

— Metasternum very broad medially (MTL/MTW. 0.35) - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5

3(1). Male median lobe very slender and elongate, without lateral emarginations, teeth or lobes ( Fig. 5 ); southern Mexico - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G. belae, new species

— Male median lobe very broad and robust, with lateral emarginates and teeth or large lobes; North America north of Mexico - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4

4(3). Male with posterior margin of metafemur slightly expanded, but without prominent tooth; median lobe with lateral emarginations small, without very large lobes ( Figs. 7, 9 ), apex of median lobe attenuate and sharply pointed in ventral aspect ( Fig. 7 ), in lateral aspect with apex pointed and strongly curved dorsad ( Figs. 8, 9 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G. parile (Fall)

— Male with prominent tooth along posterior margin of metafemur; median lobe with very large, prominent lateral emarginations subtending very large lobes ( Figs. 10, 12 ), apex of median lobe bluntly rounded in ventral aspect ( Fig. 10 ), in lateral aspect with apex narrowly rounded and approximately straight ( Figs. 11, 12 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G. parvulum (LeConte)

5(2). Elytra prominently and relatively coarsely punctate over entire surface; male median lobe strongly acuminate apically in ventral aspect, sharply pointed ( Fig. 13 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G. baen , new species

— Elytra finely and indistinctly punctate over entire surface ( G. rol with irregular longitudinal subsutural series of relatively coarse punctures); male median lobe somewhat acuminate or not, but not generally as sharply pointed - - - - - - - - - - - - - - - - 6

6(5). Size very large (TBL. 3.02 mm); male median lobe very robust, apically abruptly attenuated in ventral aspect ( Fig. 15 ), apex very abruptly curved dorsad in lateral aspect ( Fig. 16 ); Bolivia and Peru - - - - - - - - - - - - - - - - - G. donut , new species

— Size smaller (TBL, 3.02 mm); male median lobe robust, but not as strongly so, apically gradually attenuated in ventral aspect, apex not so abruptly curved dorsad in lateral aspect; southwestern United States south to Central America 7

7(6). Apex of male median lobe in lateral aspect distinctly curved dorsad ( Fig. 18 ); elytra with irregular longitudinal subsutural series of relatively coarse punctures; southern Arizona, USA - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G. rol , new species

— Apex of male median lobe in lateral aspect straight ( Fig. 20 ); elytra without punctation or punctation very fine, sparse and inconspicuous and without subsutural series more coarse than others; Mexico and Central America - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - G. cognatum Matthews

Figures

Figs. 3–12. Gelae species, median and lateral lobes of aedeagus. Figs. 3–4) G. fish; 3) ventral; 4) lateral. Figs. 5–6) G. belae; 5) ventral; 6) lateral. Figs. 7–9) G. parile; 7) ventral; 8) lateral; 9) apex of median lobe, lateral. Figs. 10–12) G. parvulum; 10) ventral; 11) lateral; 12) apex of median lobe, lateral.

Figs. 13–20. Gelae spp., median and lateral lobes of aedeagus. Figs. 13–14) G. baen; 13) ventral; 14) lateral. Figs. 15–16) G. donut; 15) ventral; 16) lateral. Figs. 17–18) G. rol; 17) ventral; 18) lateral. Figs. 19–20) G. cognatum; 19) ventral; 20) lateral.