Lypoglossa angularis

Gusarov, Vladimir I., 2004, A revision of the genus Lypoglossa Fenyes, 1918 (Coleoptera: Staphylinidae: Aleocharinae), Zootaxa 747, pp. 1-36 : 16

Key to subspecies of Lypoglossa angularis

1 Bridge of median lobe in lateral view wider ( Figs. 44–45 ). Isolated populations in the Northeast ( Fig. 18 ) ....................................................1c. L. angularis obtusa (LeConte)

– Bridge of median lobe in lateral view narrower ( Figs. 28–29 , 36–37 ). Distributed in the western United States and Canada ( Fig. 18 ) ........................................................... 2

2 Apex of median lobe longer and narrower ( Figs. 25–29 ). Apex length to width ratio (L = l / w; measured as shown in Figs. 19–20 ) more than 1.41. Distributed in western and coastal Alaska, coastal British Columbia and western Washington and Oregon ( Fig. 18 )................................................................. 1a. L. angularis angularis (Mäklin)

– Apex of median lobe shorter and wider ( Figs. 33–37 ). Apex length to width ratio (L = l / w; measured as shown in Figs. 19–20 ) less than 1.41. Distributed in western interior Canada and United States ( Fig. 18 )....................... 1b. L. angularis fenyesi (Bernhauer)

Figures

FIGURE 18. Geographical distribution of Lypoglossa angularis (Mäklin) (including three subspecies) and L. manitobae Gusarov, sp. n.

FIGURES 41 – 48. Genitalia of Lypoglossa angularis obtusa (LeConte) (male (41 – 47) and female (48), Mt. Albert, Quebec). 41 — median lobe, parameral view; 42 — apex of median lobe, parameral view; 43 — apex of median lobe, oblique parameral and basal view; 44 — median lobe, lateral view; 45 — apex of median lobe, lateral view; 46 — apex of left paramere; 47 — sclerite of left paramere; 48 — spermatheca. Scale bar 0.1 mm (46), 0.2 mm (42 – 43, 45, 47 – 48), 0.4 mm (41, 44).

FIGURES 25 – 32. Genitalia of Lypoglossa angularis angularis (Mäklin) (male, env. of Tern Lake, Alaska (25 – 31); female, 22 mi. N Seward, Alaska (32 )). 25 — median lobe, parameral view; 26 — apex of median lobe, parameral view; 27 — apex of median lobe, oblique parameral and basal view; 28 — median lobe, lateral view; 29 — apex of median lobe, lateral view; 30 — apex of left paramere; 31 — sclerite of left paramere; 32 — spermatheca. Scale bar 0.1 mm (30), 0.2 mm (26 – 27, 29, 31 – 32), 0.4 mm (25, 28).

FIGURES 33 – 40. Genitalia of Lypoglossa angularis fenyesi (Bernhauer) (male (33 – 39) and female (40), Waterton Lakes Nat. Park, Alberta). 33 — median lobe, parameral view; 34 — apex of median lobe, parameral view; 35 — apex of median lobe, oblique parameral and basal view; 36 — median lobe, lateral view; 37 — apex of median lobe, lateral view; 38 — apex of left paramere; 39 — sclerite of left paramere; 40 — spermatheca. Scale bar 0.1 mm (38), 0.2 mm (34 – 35, 37, 39 – 40), 0.4 mm (33, 36).

FIGURES 19 – 20. Measuring scheme of the median lobe of Lypoglossa angularis (Mäklin) in parameral (19) and lateral (20) views. w ­ width of the apex; l ­ length of the apex; b ­ width of the athetine bridge.