Eunemadina,

Peck, Stewart B., Gnaspini, Pedro & Newton, Alfred F., 2020, Updated catalog and generic keys of the Leiodidae (Insecta: Coleoptera) of the Neotropical region (“ Latin America ”: Mexico, the West Indies, and Central and South America), Zootaxa 4741 (1), pp. 1-114: 19-20

publication ID

https://doi.org/10.11646/zootaxa.4741.1.1

publication LSID

lsid:zoobank.org:pub:2F901615-D948-4C68-81E9-75282F594BAF

DOI

http://doi.org/10.5281/zenodo.3797453

persistent identifier

http://treatment.plazi.org/id/4E4F5B3F-FFE9-874B-FF75-CAF8FA4BF1CE

treatment provided by

Plazi

scientific name

Eunemadina
status

 

Key to Genera of Eunemadina  of Latin America (modified from Salgado, 2005b)

1a Longest metatibial spur serrate, and slightly shorter, as long as or longer than first tarsomere; Neotropical except southern South America.................................................................................. Dissochaetus 

1b Longest metatibial spur not or indistinctly serrate, and much shorter than first tarsomere; southern South America, no further north than northern Chile............................................................................... 2

2a Pronotum with abruptly excavate hind angles; neck on each side with a large deep invagination; elytra not distinctly transversely striolate............................................................................. Falkocholeva 

2b Pronotum not or evenly narrowed toward base, hind angles not excavate, usually right or obtuse; neck without invaginations; elytra transversely striolate.............................................................................. 3

3a Median lobe of aedeagus asymmetrical; marginal setae on median lobe with non-symmetrical insertions pores; male mesotarsi with first two segments expanded.............................................................. Araucaniopsis 

3b Median lobe of aedeagus symmetrical; if present, marginal setae with symmetrical insertion pores; male mesotarsi either simple or bearing one or two expanded segments.................................................................. 4

4a Male mesotarsi with first two segments expanded............................................................ 5

4b Male mesotarsi simple or with first segment expanded........................................................ 6

5a Body size small, less than 2.50 mm long; punctation on head very fine and superficial; mesosternum with complete longitudinal carina; parameres of aedeagus forceps-shaped, with setae on internal margin; basal lamina of aedeagus longer than median lobe......................................................................................... Peckardia 

5b Larger body size, over 3.00 mm long; punctation on head very strong and deep; mesosternum not all carinate; parameres of aedeagus subcylindrical, lacking setae on internal margin; basal lamina of aedeagus as long as median lobe.... Newtoniopsis 

6a Male metasternum strongly bituberculate; male segment tubuliform, longer than wide, with the sternal apophysis nonexistent or rudimentary....................................................................................... 7

6b Male metasternum not tuberculate; male segment not tubuliform, wider than long, often about as long as wide, with the sternal apophysis developed and wide if short..................................................................... 8

7a Pronotum weakly transverse, at most 1.25 times wider than long; antennal segments longer than wide, only segment 8 slightly transverse; lateral margins of median lobe festooned, apical region lanceolate; parameres of aedeagus strongly widened and flattened; body extremely long and narrow, not more than 0.4 x as wide as long.......................... Nemadotropis 

7b Pronotum strongly transverse, at least 1.50 times wider than long; antennal segments 6 to 10 transverse, lateral margins of median lobe rectilinear, apically wide; parameres of aedeagus subcylindrical; body less elongate, more than 0.4 x as wide as long....................................................................................... Eunemadus 

8a Apical segment of maxillary palp very small, much shorter than and only half as wide at base as penultimate segment; occipital crest scarcely elevated above neck at midline; mesosternum not carinate; parameres of aedeagus glabrous or with small apical setae.................................................................................... Falkonemadus 

8b Apical segment of maxillary palp usually not much shorter than, and at least 2/3 as wide at base as, penultimate segment; occipital crest strongly elevated throughout; mesosternum usually with mid-longitudinal carina on at least posterior third; parameres of aedeagus each with at least 2 apical setae............................................................ 9

9a All antennal segments clearly longer than wide; antennal segments 1, 2, and 3 over three times longer than wide; ventrite of female 8 th abdominal segment triangular, spiculum ventrale very short; very fine punctures on head, almost indiscernible; mesotarsi simple............................................................................ Pseudonargiotes 

9b Antennal segment 8 always clearly transverse; 1, 2, and 3 shorter than three times width; ventrite of female 8 th abdominal segment more or less widely arcuate, spiculum ventrale well-developed; fine or stout punctures on head; mesotarsi simple or with widened first tarsomere............................................................................... 10

10a Male mesotarsus with first segment without tenent setae, slender; fine or non-existent punctures on head (except for subgenus Reticulonemadioluls).......................................................................... Nemadiolus 

10b Male mesotarsus with first segment bearing tenant setae and more or less expanded; punctures on head strong... Nemadiopsis