Dictyogenus, Klapalek, 1904

Reding, Jean-Paul G., Launay, Bertrand, Doaré, Jacques Le, Ruffoni, Alexandre & Vinçon, Gilles, 2019, Two New Species Of Dictyogenus Klapálek, 1904 (Plecoptera: Perlodidae) From The Jura Mountains Of France And Switzerland, And From The French Vercors And Chartreuse Massifs, Illiesia 15 (2), pp. 27-64 : 49-51

publication ID

https://doi.org/10.5281/zenodo.4761285

publication LSID

lsid:zoobank.org:pub:C9602772-1A3A-4C43-AA2D-534DF8D79AEB

DOI

https://doi.org/10.5281/zenodo.4764619

persistent identifier

https://treatment.plazi.org/id/352C87AB-0076-FFD1-F5F6-F99059437FB1

treatment provided by

Felipe

scientific name

Dictyogenus
status

 

Morphological key to adults of Dictyogenus

1 Females ..……………………………………….. 2

1’ Males ………………………..………………….. 3

2 Subgenital plate covering majority of sternum 9 ( Figs. 60, 61 View Figs ). Macropterous ( Fig. 61 View Figs ) ……………………..……. Dictyogenus alpinum

2’ Subgenital plate covering at most the anterior half of sternum 9 ( Figs. 9 View Fig , 36 View Fig , 83 View Fig , 84 View Fig ). Macropterous or more rarely brachypterous ( Fig. 78 View Fig ) …………… Dictyogenus jurassicum , D. muranyii , D. fontium species complex (not keyed)

3 Hemitergal lobes separated from the inner anterior corner of each hemitergum by a wide V-shaped membranous area ( Figs. 3 View Figs , 29 View Figs , 32 View Figs , 81 View Figs ). Apex of frontal epiproct sclerite nearly straight in lateral view, “dagger-like” ( Figs. 5 View Figs , 6 View Figs , 33 View Figs , 80 View Figs ). Lateral stylets apically enlarged ( Figs. 5 View Figs , 6 View Figs , 33, 34 View Figs , 80 View Figs ) ………………………….. 4

3’ Hemitergal lobes separated from the inner anterior corner of each hemitergum by a narrow V-shaped sclerotized area ( Fig. 56 View Fig ). Hemitergal lobes wide and bulky, hardly bent upwards, pointing almost horizontally toward each other ( Fig. 56 View Fig ). Apex of frontal epiproct sclerite with a strong curvature in lateral view, “claw-like” ( Fig. 57 View Fig ). Epiproct sides straight, in dorso-caudal view ( Fig. 58 View Figs ). Lateral stylets thinning progressively toward apex ( Fig. 57 View Fig ) ………….. Dictyogenus alpinum

4 Hemitergal lobes strongly bent upwards ( Figs. 3 View Figs , 81 View Figs ) …………………………………………… 5

4’ Hemitergal lobes hardly bent upwards, slender, bulb-shaped with a slight distal knob ( Fig. 30 View Figs ). Apex of frontal epiproct sclerite straight and with a median curvature, in lateral view ( Fig. 33 View Figs ). Epiproct sides rounded, in dorso-caudal view ( Fig. 35 View Figs ). Lateral stylets not getting thinner progressively toward apex ( Figs. 33, 34 View Figs ) ………….. Dictyogenus muranyii

5 Apex of frontal epiproct sclerite straight and with a median curvature, in lateral view ( Figs. 5 View Figs , 6 View Figs ). Lateral stylets apically enlarged ( Figs. 5 View Figs , 6 View Figs ) …………………….. Dictyogenus jurassicum

5’ Apex of frontal epiproct sclerite straight, angled posteriorly, in lateral view ( Fig. 80 View Figs ) ………. Dictyogenus fontium species complex

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Plecoptera

Family

Perlodidae