Gnypeta : Casey 1906
Creators: name: Klimaszewski, Jan
name: Savard, Karine
name: Pelletier, Georges
name: Webster, Reginald
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Gnypeta

description: Key to <i>Gnypeta</i> species occurring in Canada, Alaska and Greenland 1. Basal article of metatarsus longer than two following articles combined......2 – Basal article of metatarsus at most as long as two following articles combined (Fig. 1)........................................................................................................3 2. Antennal articles 8-10 strongly transverse (Figs 27 a, b); median lobe of aedeagus with narrowly triangular apical part in lateral view (Fig. 91), and bulbus with two lateral projections in dorsal view (Fig. 92); spermatheca with capsule pitcher-shaped (Fig. 96); female sternite 8 rounded apically (Fig. 98).................................................................................... <b> <i>G. brevicornis</i> Casey</b> <b>–</b> Antennal articles 8-10 quadrate or slightly elongate (Figs 32 a, b); median lobe of aedeagus with broadly triangular apical part in lateral view (Fig. 130); spermatheca C-shaped, capsule mushroom-formed (Fig. 136); female sternite 8 emarginate apically (Fig. 138)...................................... <b> <i>G. uteana</i> (Casey)</b> 3. Body broad and robust (Fig. 8), pronotum at base about as broad as elytra (Fig. 8), abdomen swollen medially and at base as broad as elytra (Fig. 8); median lobe of aedeagus and spermatheca as illustrated (Figs 83, 84, 88).................................................................................... <b> <i>G. groenlandica</i> Lohse</b> – Body narrow and less robust (Figs 3, 5, 6, 9, 14, 15), pronotum at base narrower than elytra, abdomen subparallel and at base narrower than elytra (Figs 3, 7, 9-15); genitalia differently shaped.......................................................4 4. Elytra at suture approximately as long as pronotum (Figs 3, 6, 7, 10, 15-19)................................................................................................................... 5 – Elytra at suture distinctly longer than pronotum (Figs 4, 5, 11-13, 20).... 13 5. Antennal articles 7-10 strongly transverse (Figs 21 a, b); median lobe of aedeagus and spermatheca as illustrated (Figs 39, 40, 41, 45).............. <b> <i>G. ashei</i> sp. nov.</b> – Antennal articles 7-10 elongate, subquadrate or slightly transverse (Figs 23-25 a, b, 28 a, b, 31 b, 33-37 a, b); genitalia differently shaped (Figs 75, 76, 80, 99-101, 105, 139-141, 145, 148, 149, 153, 156, 157, 161, 164, 165, 169, 172-174, 178).....6 6. Antennal articles 7-10 slightly transverse (Figs 24 a, b, 25 a, b, 33 a, b); female sternite 8 without deep median emargination (Figs 74, 82, 147)........ 7 – Antennal articles 7-10 elongate or subquadrate (Figs 28 a, b, 34-37 a, b); female sternite 8, except for <i>G. caerulea</i>, with deep apical emargination (Figs 107, 155, 163, 171, 180)............................................................................ 9 7. Body length 3.0-3.4 mm; median lobe of the aedeagus with apical part narrowly produced (Fig. 66); spermatheca with capsule funnel-shaped and as wide as long (Fig. 72).................................................. <b> <i>G. sellmani</i> Brundin</b> – Body length 2.5-3.0 mm; median lobe of aedeagus and spermatheca differently shaped (Figs 75, 76, 80, 139-141, 145).............................................. 8 8. Body length 2.5-2.7 mm; male tergite 8 with four apical dents on apical margin (Fig. 78); spermatheca with capsule funnel-shaped (Fig. 80); median lobe of aedeagus with apical part narrowly triangular with sinuate margins (Fig. 75)......................................................................... <b> <i>G. dentata</i> sp. nov.</b> – Body length 2.7-3.0 mm; male tergite 8 without teeth and with minute median emargination on apical margin (Fig. 143); spermatheca with apical part of capsule approximately spherical (Fig. 145); median lobe of aedeagus with apical part moderately narrowly triangular, narrowly bottle-shaped (Fig. 139)...................................................... <b> <i>G. carbonaria</i> (Mannerheim)</b> 9. Integument moderately glossy with minute pubescence (Figs 18, 19); basal three tergal impressions virtually impunctate except for the margins of tergites (Figs 1, 18, 19); body length 2.4-3.0 mm; genitalia as in Figs 164, 165, 169, 172-174, 178...........................................................................10 – Integument strongly glossy with pubescence moderately long (Figs 10, 16, 17); basal three tergal impressions with dispersed punctation (Figs 10, 16, 17); body length 2.7-3.5 mm; genitalia as illustrated (Figs 99-101, 105, 148, 149, 153, 156, 157, 161)..........................................................................11 10. Pronotum and abdomen at base distinctly narrower than elytra (Fig. 18); first three visible tergal impressions lacking coarse punctation except for the posterior margin (Fig. 1); median lobe of aedeagus with tubus swollen laterally (Fig. 164), spermatheca club-shaped (Fig. 169)......... <b> <i>G. nigrella</i> (LeConte)</b> – Pronotum and abdomen at base slightly narrower than elytra (Fig. 19); first three visible tergal impressions with dispersed coarse punctation; genital structures differently shaped (Figs 172-174, 178)..... <b> <i>G. saccharina</i> sp. nov.</b> 11. Body length 3.0-3.5 mm; genitalia as illustrated (Figs 99-101, 105)............................................................................................ <b> <i>G. caerulea</i> (Sahlberg)</b> – Body length 2.5-3.0 mm; genitalia differently shaped (Figs 148, 149, 153, 156, 157, 161).......................................................................................... 12 12. Median lobe of aedeagus with moderately broad and slightly produced ventrally apical part (Fig. 148); spermatheca with thin stem (Fig. 153); western Canada............................................................................. <b> <i>G. helenae</i> Casey</b> – Median lobe of aedeagus narrowly triangular and strongly produced ventrally (Fig. 156); spermatheca with moderately wide stem (Fig. 161); eastern Canada..................................................................... <b> <i>G. canadensis</i> sp. nov.</b> 13. Antennal articles 7-10 strongly elongate (Figs 23 a, b); median lobe of aedeagus and spermatheca as illustrated (Figs 57-59, 63)....... <b> <i>G. atrolucens</i> Casey</b> – Antennal articles 7-10 subquadrate to transverse (Figs 22 a, b, 29-31 a, b, 38 a, b); genital structures differently shaped (Figs 48-50, 54, 108-110, 114, 117, 118, 122, 127-129, 181-182, 186, 187)...........................................14 14. Abdomen broad, at base approximately as broad as elytra (Figs 11, 13); genital structures as illustrated (Figs 108-110, 114, 127-129)..........................15 – Abdomen moderately broad, at base distinctly narrower than elytra (Figs 4, 12, 20); genital structures differently shaped (Figs 48-50, 54, 117, 118, 122, 181, 182, 186, 187).................................................................................16 15. Antennal articles 7-10 subquadrate (Fig. 31 b); spermatheca C-shaped (Figs 127-129)..................................................................... <b> <i>G. manitobae</i> Casey</b> – Antennal articles 7-10 transverse (Figs 29 a, b); spermatheca S-shaped (Fig. 114).......................................................................... <b> <i>G. lohsei</i> sp. nov.</b> 16. Pronotum almost as wide as elytra (Fig. 20); punctures in abdominal impressions very coarse (Fig. 20); abdomen strongly narrowed at base (Fig. 20); genital structures as illustrated (Figs 181, 182, 186, 187)..................................................................................................................... <b> <i>G. minuta</i> sp. nov.</b> – Pronotum distinctly narrower than elytra (Figs 4, 12); punctures in abdominal impressions fine or moderately coarse (Figs 4, 12); genital structures differently shaped (Figs 48-50, 54, 117, 118, 122)........................................17 17. Body small, length 2.7-3.0 mm (Fig. 12); median lobe of aedeagus with apical part narrowly produced ventrally (Fig. 117); spermatheca C-shaped, tubular (Fig. 122).................................................. <b> <i>G. crebrepunctata</i> (Casey)</b> – Body large, length 3.2-3.6 mm (Fig. 4); median lobe of aedeagus with apical part broadly triangular in lateral view (Fig. 48); spermatheca with funnel-shaped capsule and thin and sinuate stem (Fig. 54)................................................................................................................. <b> <i>G. brincki</i> Palm</b>
description: Published as part of <i>Klimaszewski, Jan, Savard, Karine, Pelletier, Georges &amp; Webster, Reginald, 2008, Species review of the genus Gnypeta Thomson from Canada, Alaska and Greenland (Coleoptera, Staphylinidae, Aleocharinae): systematics, bionomics and distribution, pp. 11-84 in ZooKeys 2 (2)</i> on pages 25-27, DOI: 10.3897/zookeys.2.4, http://zenodo.org/record/576410