Minagrion, in Santos, 1965

Vilela, Diogo Silva, Anjos-Santos, Danielle, Koroiva, Ricardo, Cordero-Rivera, Adolfo & Guillermo-Ferreira, Rhainer, 2020, Revision of the genus Minagrion Santos, 1965 (Odonata: Coenagrionidae), Zootaxa 4786 (2), pp. 176-198: 180

publication ID

https://doi.org/10.11646/zootaxa.4786.2.2

publication LSID

lsid:zoobank.org:pub:9EEAC300-4179-41B9-B51F-FDB4131CD991

persistent identifier

http://treatment.plazi.org/id/03B61158-FFDA-FFC5-FF44-A6CDFA2ABE85

treatment provided by

Plazi

scientific name

Minagrion
status

 

Key to females of Minagrion  

1. Posterior margin of prothorax not divided by the posterior lobe in lateral view ( Fig. 7c View FIGURE 7 ); width of the lateral margin of prothorax uniform throughout its extension ( Fig. 7c View FIGURE 7 ).................................................... M. mecistogastrum  

1’. Posterior margin of prothorax interrupted by the margin of the posterior lobe in lateral view ( Fig. 7e View FIGURE 7 ); lateral margin of prothorax widens towards the base (as in Fig. 7e View FIGURE 7 )................................................................. 2

2. Posterior lobe of prothorax entire in dorsal view (i.e. not divided into additional lobes, Fig. 6 View FIGURE 6 a–c)...................... 3

2’. Posterior lobe of prothorax trilobed in dorsal view (i.e. lateral clefts dividing the lobe into: two lateral and one middle lobe, Figs. 6 View FIGURE 6 d–f)........................................................................................... 4

3. Posterior lobe of prothorax medially concave in dorsal view ( Fig. 6c View FIGURE 6 ), laterally slightly elevated ( Fig. 7b View FIGURE 7 ); lateral margin of prothorax widens towards the base ( Fig. 7b View FIGURE 7 ); genital valves slightly surpass S10 posterior margin ( Fig. 9f View FIGURE 9 ).... M. canaanense  

3’. Posterior lobe of prothorax slightly convex, posteriorly oriented in dorsal view ( Fig. 6 View FIGURE 6 a–b); lateral margin of prothorax slightly widens towards the base ( Fig. 7a View FIGURE 7 ); anterior portion of tubercle ventrally pronounced, apex slightly excavated ( Fig. 2 View FIGURE 2 c–d); genital valves surpass S10 margin for a distance as long as the segment, reaching level of cercus ( Figs. 5b, e View FIGURE 5 , 9c View FIGURE 9 ).... M. caldense  

4. Middle lobe of posterior margin of prothorax the larger in dorsal view ( Fig. 6f View FIGURE 6 ); lateral lobes erected, middle lobe posteriorly directed in lateral view ( Fig. 7e View FIGURE 7 ); lateral margin of prothorax slightly widens towards the base ( Fig. 7e View FIGURE 7 ); tubercle digit-like with a rounded apex ( Fig. 2l View FIGURE 2 )........................................................................ M. waltheri  

4’. Three lobes of posterior margin of prothorax subequal in size in dorsal view ( Fig. 6e View FIGURE 6 ); lateral and middle lobes slightly erect in lateral view ( Fig. 7d View FIGURE 7 ); lateral margin of prothorax widens greatly towards the base ( Fig. 7d View FIGURE 7 ); tubercle roughly triangular ( Fig. 2j View FIGURE 2 )......................................................................................... M. ribeiroi