Andinopanurgus, Gonzalez & Engel, 2011

Gonzalez, Victor H., Engel, Michael S. & Sepúlveda, Paula A., 2013, Taxonomic and biological notes on Andinopanurgus (Hymenoptera: Andrenidae), Journal of Melittology 2013 (3), pp. 1-10 : 7-8

Key to Species of Andinopanurgus

Males

1. Clypeus without cream or yellow maculations; F1 short, about as long as F2; face and disc of mesoscutum weakly shiny; SV without spines on midapical margin, with fringe of normal, minutely-branched setae; TVII with distal margin straight, not medially emarginate ...................................................................... 2

―. Clypeus with cream or yellow maculations; F1 distinctly longer than F2; face and disc of mesoscutum dull; SV with distinctly stout, short spines on midapical margin; TVII with V-shaped median emargination on distal margin ................. 3

2(1). SVII with apical lobes narrow, parallel-sided, retrorse section of apex comma-shaped; gonostylus slender in profile, slightly tapering towards apex, basally strongly protuberant on medial margin in dorsal view ( Colombia: Antioquia) ..................................................................................... P. guarnensis Gonzalez & Ruz

―. SVII with apical lobes not parallel-sided, much broader apically (apex about twice as broad as base), retrorse section of apex not comma-shaped; gonostylus more robust in profile, about same width across its length, basally not protuberant on medial margin in dorsal view ( Peru) ..... P. femoralis Gonzalez & Engel

3(1). Antennal flagellum weakly or strongly crenulate on posterior surface; SV with more than four spines on midapical margin; larger bees (body length 7.9–11.8 mm) .............................................................................................................................. 5

―. Antennal flagellum unmodified, not crenulate on posterior surface; SV with a row of four spines on midapical margin; small bees (body length 5.7–6.8 mm) ... ....................................................................................................................................... 4

4(3). Small bees (head width 1.6–1.7 mm; body length 5.7–6.1 mm) ( Colombia: Boyacá, Cundinamarca) ........................................................ P. rangeli Gonzalez & Ruz

―. Larger bees (head width 1.8 mm; body length 6.8 mm) ( Venezuela) ...................... ........................................................................................ P. maximina Gonzalez & Ruz

5(3). Antennal flagellum strongly crenulate on posterior surface, with deep concavity between flagellomeres; mandible not distinctly broad apically; posterior hypostomal carina unmodified, without a tooth; protibial spur with apex of rachis very short (less than one-third of malus length), with less than five elongate branches (not including apical portion of rachis); SIII –SV with distal margins distinctly convex; SV with midapical row of spines medially projecting ........... 6

―. Antennal flagellum weakly crenulate on posterior surface, without deep concavity between flagellomeres; mandible distinctly broad apically; posterior hypostomal carina with strong tooth; protibial spur with apex long, about three-fourths of malus length, with a distinct row of 10 elongate branches (not including apical portion of rachis); SIII –SIV with distal margins gently convex; SV with midapical row of spines straight, not medially projecting ( Ecuador: Napo) ............................................................................... P. amyae Gonzalez & Engel

6(5). F8 and F9 crenulate; SV midapical row of spines of unequal sizes, distal two spines distinctly longer ( Ecuador: Quito, Napo) ....................................................... .................................................................................... P. wayruronga Gonzalez & Ruz

―. F8 and F9 unmodified, not crenulate; SV with midapical row of spines of about same size, without two distinctly long spines distally ( Colombia: Boyacá, Cundinamarca) ........................................................................ P. bachue Gonzalez & Ruz

Females

Note that the females of P. amyae and P. wayruronga are unknown. However, given that the male of these species have crenulate antennal flagella they likely should run to P. bachue in the key.

1. Antennal flagellum unmodified, not crenulate ...................................................... 2

―. Antennal flagellum modified, weakly crenulate on posterior surface of F1–F5 ( Colombia: Boyacá, Cundinamarca) .............................. P. bachue Gonzalez & Ruz

2(1). F1 about as long as F2; discs of mesoscutum and mesoscutellum shiny, weakly imbricate between punctures; metatibia with brownish to whitish scopal setae ....................................................................................................................................... 3

―. F1 distinctly longer than F2; discs of mesoscutum and mesoscutellum dull, strongly imbricate between punctures; metatibia with dark brown to black scopal setae ....................................................................................................................... 4

3(2). Mesofemur with posterior surface and metafemur with anterior and posterior surfaces distinctly depressed ( Peru) ....................... P. femoralis Gonzalez & Engel

―. Meso- and metafemora unmodified, not distinctly depressed ( Colombia: Antioquia) ............................................................................ P. guarnensis Gonzalez & Ruz

4(2). Small bees (head width 1.6–1.8 mm; body length 5.6–6.3 mm) ( Colombia: Boyacá, Cundinamarca) ........................................................ P. rangeli Gonzalez & Ruz

―. Larger bees (head width 1.9–2.1 mm; body length 7.8 mm) ( Venezuela) ............... ........................................................................................ P. maximina Gonzalez & Ruz