Nephepeltia,

Ellenrieder, Natalia Von, 2014, A synopsis of the Neotropical genus Nephepeltia (Odonata: Libellulidae), including description of a new species, synonymies, and a key to males, Zootaxa 3796 (1), pp. 121-146: 122-123

publication ID

http://dx.doi.org/10.11646/zootaxa.3796.1.6

publication LSID

lsid:zoobank.org:pub:C212E3BB-8190-4BA6-9DEE-D5EE788AA953

persistent identifier

http://treatment.plazi.org/id/03BD87AE-FFA6-024B-85BD-F8ED4C8FC848

treatment provided by

Plazi

scientific name

Nephepeltia
status

 

Key to males of Nephepeltia 

1. Venter of thorax with a large conical spine about twice as long as wide ( Fig. 8View FIGURE 8); Guatemala to NE Argentina and S Brazil ( Fig. 16View FIGURE 16)......................................................................................... N. phryne 

1 ’. Venter of thorax with a small tubercle as long as wide or shorter, or smoothly convex ( Figs. 6–7View FIGURE 6View FIGURE 7)..................... 2

2 (1 ’). Spurs of inner row of hind tibiae closely set and peg-like at basal 0.40 ( Fig. 2View FIGURE 2 f); radial planate of both wings consisting of four or five cells, and usually with two cells at base of Fw discoidal field ( Fig. 3View FIGURE 3 f); venter of thorax smoothly convex ( Fig. 6View FIGURE 6 d); outer branch of hamule forming an anteriorly directed blunt hook ( Figs. 9View FIGURE 9 e; 10g); Panama to NW Argentina and Paraguay ( Fig. 16View FIGURE 16)...................................................................................... N. leonardina 

2 ’. Spurs of inner row of hind tibiae of about uniform length and placement or short and more closely set at basal 0.50–0.75, and gradually increasing in length apically or of variable length throughout ( Figs. 2View FIGURE 2 a –e); radial planate consisting of three cells, and with one cell at base of Fw discoidal field ( Figs. 3View FIGURE 3 a –e); venter of thorax with a tubercle ( Figs. 6View FIGURE 6 a –c; 7); outer branch of hamule rounded ( Figs. 9View FIGURE 9 a –d; 10 a –f) 3

3 (2 ’). Wings with a well defined basal golden spot surpassing triangle ( Fig. 3View FIGURE 3 e); inner branch of posterior hamule about as high as outer branch ( Fig. 10View FIGURE 10 c); medio-ectal sclerotized distal process of vesica spermalis distinctly longer than latero-ectal processes ( Fig. 11View FIGURE 11 d); cerci tips with a short apical spine directed dorsally ( Figs. 12View FIGURE 12 b; 13g); Ecuador, Peru, and W Brazil ( Fig. 15View FIGURE 15).............................................................................................. N. flavipennis 

3 ’. Wings hyaline ( Fig. 3View FIGURE 3 a –d) or with a small basal diffuse yellowish spot; inner branch of posterior hamule clearly higher than outer branch ( Figs. 10View FIGURE 10 a –b, d –f); medio-ectal sclerotized distal process of vesica spermalis shorter than latero-ectal processes ( Fig. 11View FIGURE 11 a –c); cerci tips with an apical spine which is either long or oriented posteriorly ( Figs. 13View FIGURE 13 a –f).................. 4

4 (3 ’). Distal end of ventral toothed carina of cercus at about distal fourth of its length ( Fig. 13View FIGURE 13 a); Suriname and NE Brazil to NE Argentina ( Fig. 15View FIGURE 15).......................................................................... N. aequisetis 

4 ’. Distal end of ventral toothed carina of cercus at about distal half to third of its length ( Figs. 13View FIGURE 13 b –f)................... 5

5 (4 ’). Spurs of inner row of hind tibiae of about uniform placement and length ( Fig. 2View FIGURE 2 b); medio-ectal sclerotized distal process of vesica spermalis much longer than wide, surpassing ventrally latero-ectal processes in lateral view ( Fig. 11View FIGURE 11 b); distal portion of cercus abruptly directed dorsally ( Fig. 13View FIGURE 13 b); SE Brazil, Paraguay, and NE Argentina ( Fig. 16View FIGURE 16).................. N. berlai 

5 ’. Spurs of inner row of hind tibiae short and more closely set at basal 0.50–0.75, and gradually increasing in length apically ( Figs. 2View FIGURE 2 c –d); medio-ectal sclerotized distal process of vesica spermalis as short as wide, not surpassing ventrally latero-ectal processes in lateral view ( Fig. 11View FIGURE 11 c); distal portion of cercus gradually and slightly directed dorsally ( Figs. 13View FIGURE 13 c –f); Mexico to NE Argentina and S Brazil ( Fig. 15View FIGURE 15)................................................................ N. flavifrons