Gymnetina Casey, 1915

Ratcliffe, Brett C. & Warner, William B., 2011, A revision of the genus Gymnetina Casey, 1915 (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini), Insecta Mundi 2011 (173), pp. 1-28 : 4

publication ID

https://doi.org/ 10.5281/zenodo.5160820

DOI

https://doi.org/10.5281/zenodo.5164493

persistent identifier

https://treatment.plazi.org/id/A86ABA25-6A75-A80F-19A1-FE787AD3F89F

treatment provided by

Felipe

scientific name

Gymnetina Casey, 1915
status

 

Key to the Species of Adult Gymnetina Casey, 1915

1. Pronotum and elytra with large, dense, mostly confluent punctures. Dorsal surface completely black. Guatemala....................... G. grossepunctata Ratcliffe and Warner , new species

– Pronotum with minute to small punctures; if with punctures moderate in size then also with cretaceous bands along lateral margins. Elytra sparsely to moderately punctate on disc with punctures becoming denser on sides but never completely, coarsely punctate; cretaceous marks present or not. Mexico and USA............................................................................................... 2

2(1). Elytron with 2 large, round, cretaceous spots in transverse row just behind middle ( Fig. 11a View Figures 11-14 ); rarely, spots reduced to a single, submarginal spot ( Fig. 11b View Figures 11-14 ) or spots fused ( Fig. 11c View Figures 11-14 ). Male with protibial teeth reduced to obsolete. Parameres (ventral view) lacking prominent tooth at base ( Fig. 14 View Figures 11-14 ) ............................................................................................................................ 3

– Elytron with slender or broad, cretaceous band just behind middle ( Fig. 25a View Figures 25-28 ); rarely broken into 2 irregular spots ( Fig. 25b View Figures 25-28 ) or with small, cretaceous flecks or without cretaceous marks. Male protibial teeth not reduced. Parameres (ventral view) with distinct tooth at base ( Fig. 28 View Figures 25-28 ) .. 4

3(2). Pronotum with broad, cretaceous band along lateral margins ( Fig. 11 View Figures 11-14 ). Mesepimeron usually with cretaceous spot. Pygidium with large, cretaceous spot either side of middle. SE Arizona, extreme SW New Mexico, and Chihuahua and Durango, Mexico.............................................. ............................................................................................ G. cretacea cretacea (LeConte)

– Pronotum with slender, partial, cretaceous band along lateral margins ( Fig. 15 View Figures 15-19 ) or lacking cretaceous marks altogether. Mesepimeron never with cretaceous spot. Pygidium with or without cretaceous spot either side of middle. Doña Ana Co. New Mexico .............................................. ...................................... G. cretacea sundbergi Warner and Ratcliffe , new subspecies

4(2). Pronotum with broad, cretaceous band along lateral margins ( Fig. 25 View Figures 25-28 ). Elytron with broad, cretaceous, transverse band just behind middle. SE Arizona, SW New Mexico, and Chihuahua and Sonora, Mexico................................. G. howdeni Warner and Ratcliffe , new species

– Pronotum with slender, cretaceous band along lateral margins ( Fig. 1 View Figures 1-4 ) or without any cretaceous marks. Elytron with slender, cretaceous, transverse band just behind middle or with a small, cretaceous fleck near lateral margin (rarely with 2 small flecks traversing elytron) ............. 5

5(4). Pygidium without cretaceous spots ( Fig. 7 View Figures 5-10 ). Central Arizona and New Mexico ............................ .................................................................. G. borealis Warner and Ratcliffe new species

Pygidium with cretaceous spot either side of middle. Durango to Oaxaca, Mexico.................... 6

6(5). Mesepimeron usually with cretaceous spot. Elytron with slender, sinuate, transverse, cretaceous band just behind middle (band rarely broken). Males with cretaceous spot on posterolateral margin of sternites 1-4 (variably reduced) AND on anterior margin of sternites 2-5 either side of middle (variably reduced, but always with at least 1 spot). Southern Mexico ........................... ......................................................................................................... G. alboscripta (Janson)

– Mesepimeron without cretaceous spot. Elytron with single, small, cretaceous spot near lateral margin just behind middle. Males with cretaceous spot on posterolateral margin of sternites 1-4 (variably reduced) but never with second set of cretaceous marks on sternites 2-5 either side of middle. Mexico.............................................................................................. G. salicis (Bates)

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Cetoniidae

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