Allocapnia Claassen, 1928
publication ID |
https://doi.org/ 10.5281/zenodo.4759885 |
DOI |
https://doi.org/10.5281/zenodo.4759758 |
persistent identifier |
https://treatment.plazi.org/id/038D879B-FF8B-6843-FEEC-816AFAC8FDEF |
treatment provided by |
Felipe |
scientific name |
Allocapnia Claassen, 1928 |
status |
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Genus Allocapnia Claassen, 1928 View in CoL
Type species. Allocapnia granulata (Claassen) View in CoL
Distribution. An eastern Nearctic endemic genus found from the southern Maritime Provinces of Canada to the Gulf Coastal States and westward to the Wichita Mountains of Oklahoma and the eastern countiesof the Dakotas (Kirchner et al. unpublished). Diversity. Allocapnia currently includes 44 species ( Stark & Baumann 2006) with seven recognized for Mississippi. The following keys modified from Kirchner et al. (unpublished) will assist in the identification of adult specimens. Most Mississippi nymphal specimens can be identified using Stark & Lacey (2005).
Key to Adult Mississippi Allocapnia View in CoL
(Modified from Kirchner et al. unpublished)
1 Tip of abdomen bearinga dorsalepiproct (Figs. 4‐ 5), and a dorsal process on abdominal segment 8 (Fig. 7); wings not reaching tip of abdomen ……………………………………………… males (2)
1’ Tip of abdomen without dorsal epiproct and process on tergum 8, butwith a conspicuous pale, unsclerotized dorsal band extending from abdominalbase to segment 8; abdominalsternum 8 modified to form a small subgenital plate (Fig. 9); wings usually reaching almost to, or slightly beyond tip of abdomen …………….... females (8)
2 Tergal process on segment 8 with a wide, conspicuous notch ( Fig. 14 View Figs ) ……………………... 3
2’ Tergal process on segment 8 without notch ( Fig. 28 View Figs ), or with a narrow inconspicuous notch ( Fig. 21 View Figs ) ………………………………………………… 5
3 Tergum 8 with a small membranous, hairy knob located posterolaterad of each lobe of dorsal process ( Figs. 12‐14 View Figs ) …………………… granulata View in CoL
3’ Tergum 8 without membranous hairy knob behind lobes of dorsal process …………………. 4
4 Dorsal process of tergum 8 more or less chair shaped in lateral aspect; notch moderately deep but not extending to level of tergum 7 (Figs. 5, 7) ………………………………………………… aurora View in CoL
4’ Dorsal process of tergum 8 not chair shaped in lateral aspect; notch of process deep, extending to levelof tergum 7 ( Fig. 33, 36 View Figs ) ……………… rickeri View in CoL
5 Dorsalprocessof tergum 8 large, flat, cushion‐ like and bearinga second, small, ridge‐ like processon anterior margin of tergum 8 ( Figs. 49‐50 View Figs ; apical segment of epiproct upper limb wide ( Fig. 46 View Figs ) ………….…………………………….… virginiana View in CoL
5’ Dorsal process of tergum 8 variable but not as above; apical segment of epiproct upper limb narrower ( Fig. 18 View Figs ) ……………………………….. 6
6 Dorsal process of tergum 8 with a narrow notch ( Fig. 21 View Figs ) ……………………….…………… mystica View in CoL
6’ Dorsalprocessof tergum 8 withoutnotch ( Fig. 28 View Figs ) ……………………………………………………... 7
7 Anterior margin of dorsal process of tergum 8 bent abruptly near apex in lateral aspect ( Fig. 29 View Figs ); dorsal aspect of 8 th tergal process a thin, almost straight, transverse ridge ( Fig. 28 View Figs ) ……. polemistis View in CoL
7’ Anterior margin of dorsalprocessof tergum 8 not bent ( Fig. 43 View Figs ); dorsal aspect of 8 th tergal process U or V‐ shaped ………………………………….. starki View in CoL
8 Abdominal sterna 7 and 8 at least partially fused by a distinct transverse sclerotized area (Figs. 9, 37) …………………………………………………. 9
8’ Abdominal sterna 7 and 8 separated by membrane ( Fig. 16 View Figs ) …………………………….. 10
9 Sclerotized bridge between abdominal sterna 7 and 8 with conspicuous lateral membranous notches ( Figs. 37 View Figs , 63 View Figs ) ………………………. rickeri View in CoL
9’ Sclerotized bridge between abdominal sterna 7 and 8 folded under posterior margin of sternum 7 forming a thin, dark line without lateral notches (Figs. 9, 59) ………………………………….. aurora View in CoL
10 Projectingsubgenitalplatewithsmallbasolateral notches ( Figs. 16 View Figs , 60 View Figs ) …..……………..… granulata View in CoL
10’ Subgenital plate, if projecting, without basolateral notches ( Fig. 30 View Figs ) ……………………………….… 11
11 Subgenital platescarcely projecting beyondlateral margins of sternum 8 ( Figs. 30 View Figs , 62 View Figs ); known from Tishomingo Co ………………….……… polemistis View in CoL
11’ Subgenital plate at least slightly projecting beyond lateral margins of sternum 8 ( Fig. 44 View Figs ); found more or less statewide ………………….. 12
12 Subgenital plate broadly arcuate ( Figs. 51 View Figs , 65 View Figs ) ……………………….…………………… virginiana View in CoL
12’ Subgenital platenarrow ( Fig. 44 View Figs ) ………….…... 13
13 Base of subgenital plate with a pair of small, mesal lobes ( Fig. 64 View Figs ) ..………………….……. starki View in CoL
13’ Base of subgenital plate without small, mesal lobes ( Fig. 61 View Figs ) ……………………….……… mystica View in CoL
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