Apobaetis, Day, 1955

Cruz, Paulo Vilela, 2020, Redescription of three species of Apobaetis Day, 1955 (Ephemeroptera: Baetidae), Zootaxa 4808 (2), pp. 317-330 : 328-329

publication ID

https://doi.org/ 10.11646/zootaxa.4808.2.5

publication LSID

lsid:zoobank.org:pub:59D10233-9B5D-4FC4-B814-7117D1C91E6F

DOI

https://doi.org/10.5281/zenodo.4328233

persistent identifier

https://treatment.plazi.org/id/AB548790-FFB2-DE5F-4AF4-F9044AD1FC80

treatment provided by

Plazi

scientific name

Apobaetis
status

 

Key to the identification of the larvae of the Apobaetis View in CoL View at ENA species described to date

(adapted from Nieto 2006 and Cruz & De-Souza 2014)

1. Third segment of labial palp completely triangular (Figs 12, 25 and 37 in Nieto 2006), with only one apical corner; distal margin of labrum near midline without blunt setae ( Figs 6B View FIGURE 6 , 19 and 31 in Nieto 2006)..................................... 2

1’. Third segment of labial palp subtriangular or subquadrangular, with two lateral corners ( Figs 2F View FIGURE 2 , 4F View FIGURE 4 and 6F View FIGURE 6 ); distal margin of labrum near midline with blunt setae ( Figs 2A View FIGURE 2 , 4A View FIGURE 4 and 6A View FIGURE 6 ).................................................... 5

2. Segment II of labial palp with strongly rounded distomedial projection ( Fig. 5 View FIGURE 5 in McCafferty 2000); segment II of maxillary palp robust and thick ( Fig. 4 View FIGURE 4 in McCafferty 2000)........................................ A. lakota View in CoL [North America]

2’. Segment II of labial palp without strongly rounded distomedial projection ( Figs 2F View FIGURE 2 , 4F View FIGURE 4 and 6F View FIGURE 6 ); segment II of maxillary palp robust and thin ( Figs 2E View FIGURE 2 , 4E View FIGURE 4 and 6E View FIGURE 6 )...................................................................... 3

3. Maxillary palp long, at least 1.5× length of galea-lacinia (Fig. 35 in Nieto 2006); dorsal margin of femora with blunt setae (Fig. 38 in Nieto 2006)...................................................................... A. niger Nieto 2006 View in CoL

3’. Maxillary palp shorter, subequal to galea-lacinia (Fig. 23 in Nieto 2006); dorsal margin of femora without blunt setae (Fig. 26 in Nieto 2006)........................................................................................ 4

4. Labrum with pronounced medial emargination ( Fig. 6a View FIGURE 6 in Nieto 2006); segment II of labial palp with distomedial projection, rounded apically (Fig. 12 in Nieto 2006)................................................. A. insolitus Nieto 2006 View in CoL

4’. Labrum with shallow medial emargination (Fig. 19 in Nieto 2006); segment II of labial palp with distomedial projection pointed apically (Fig. 25 in Nieto 2006)................................................ A. kallawaya Nieto 2006 View in CoL

5. Tarsal claws longer than tarsi (Figs 10A and 22 in Cruz & De-Souza 2014).........................................6

5’. Tarsal claws shorter than tarsi ( Figs 3A View FIGURE 3 , 5A View FIGURE 5 and 7A View FIGURE 7 ).......................................................... 8

6. Segment III of labial palp subquadrangular ( Figs 2F View FIGURE 2 , 4F View FIGURE 4 and 6F View FIGURE 6 ); abdominal tergum V with lateral mark................ 7

6’. Segment III of labial palp subtriangular (Fig. 16 in Cruz et al. 2011); abdominal tergum V with medial mark................................................................................ A. hamadae Cruz, Boldrini & Salles 2011 View in CoL

7. Segment II of maxillary palp without constriction ( Fig. 7 View FIGURE 7 in Cruz & De-Souza 2014); segment II of labial palp with straight distomedial projection (Fig. 9 in Cruz & De-Souza 2014); paraproct with four marginal spines (Fig. 12 in Cruz & De-Souza 2014)................................................................... A. kethepiali Cruz & De-Souza 2014

7’. Segment II of maxillary palp with constriction (Fig. 19 in Cruz & De-Souza 2014); segment II of labial palp with pointed distomedial projection (Fig. 21 in Cruz & De-Souza 2014); paraproct with one pointed marginal spine (Fig. 24 in Cruz & De-Souza 2014)........................................................................................ A. pucupi

8. Segment II of maxillary palp without apical constriction ( Figs 4F View FIGURE 4 and 6E View FIGURE 6 )........................................ 9

8’. Segment II of maxillary palp with apical constriction ( Fig. 2E View FIGURE 2 )............................ A. etowah View in CoL [North America]

9. Labrum, distal margin with short and blunt setae near midline ( Fig. 6A View FIGURE 6 ); maxillary palp long, 1.28× length of galea-lacinia ( Fig. 6E View FIGURE 6 ); abdominal tergum V has a single lateral dark mark ( Fig. 1C View FIGURE 1 )........................................ A. signifer View in CoL

9’. Labrum, distal margin with elongated and blunt setae near midline ( Fig. 4A View FIGURE 4 ); maxillary palp long, 1.5× length of galea-lacinia ( Fig. 4E View FIGURE 4 ); abdominal terga II, III, V, VI and IX are darker ( Fig. 1A View FIGURE 1 )........................................ A. fiuzai View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Baetidae

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