Asymmetrasca
Creators: name: Liu, Yang
name: Fletcher, Murray J.
name: Dietrich, Christopher H.
name: Zhang, Ya-Lin
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Asymmetrasca

description: Key to species of Asymmetrasca based on males
1 Distal process of aedeagus with apex tapered, lacking branches or teeth........................................... 2
1’ Distal process of aedeagus with at least one preapical projection or tooth.......................................... 5
2 Distal process of aedeagus evenly curved throughout length in posterior view...................................... 3
2’ Distal process of aedeagus distinctly bent preapically in posterior view........................................... 4
3 Aedeagus with preatrium more than half length of shaft, shaft nearly straight (Figs 24–25)........................ helica
3’ Aedeagus with preatrium much less than half length of shaft, shaft distinctly curved in lateral view................ cisiana
4 Aedeagus with shaft much longer than preatrium (Figs 38–39)............................................. kaicola
4’ Aedeagus with shaft only slightly longer than preatrium (Figs 8–9).................................... dahaituoensis
5 Distal process of aedeagus with two or more distal teeth....................................................... 6
5’ Distal process of aedeagus with a single preapical tooth or projection, or apex appearing bifid......................... 7
6 Aedeagus with dorsal apodeme very short, shaft without toothed dorsolateral flange (Figs 33–34)............ hypercurvata
6’ Aedeagus with dorsal apodeme well developed, shaft with toothed dorsolateral flange (Figs 63–64)................ sakaii
7 Distal process of aedeagus nearly straight in posterior view.................................................... 8
7’ Distal process of aedeagus strongly curved in posterior view................................................... 9
8 Distal process of aedeagus extended to right in posterior view, preapical projection extended dorsad (Figs 1–2)....... cienka
8’ Distal process of aedeagus extended to left in posterior view, preapical projection extended ventrad (Figs 43–44).... liaoensis
9 Aedeagal shaft with basal width> 1/3 shaft length along dorsal margin in lateral view............................. 10
9’ Aedeagal shaft with basal width much narrower than 1/3 width of length along dorsal margin in lateral view............ 11
10 Distal process of aedeagal shaft extended to right in posterior view, preapical process smaller than section distad of process (Figs 49–50)..................................................................................... mona
10’ Distal process of aedeagal shaft extended to left in posterior view, preapical process as large as section distad of process (Figs 61–62)........................................................................................ rybiogon
11 Distal process of aedeagus with single large preapical tooth or projection........................................ 12
11’ Distal process of aedeagus with 2 or more preapical teeth (may be small)........................................ 13
12 Distal process of aedeagus with preapical projection extended dorsad in posterior view shaft distinctly bent dorsad in lateral view......................................................................................... nipponica
12’ Distal process of aedeagus with preapical projection extended laterad in posterior view, shaft nearly straight in lateral view (Figs 69–70)..................................................................................... uncus
13 Distal process of aedeagus tapered with several small preapical teeth............................................ 14
13’ Distal process of aedeagus with apex, expanded and truncate with medial tooth (Figs 79).................... uniprossicae
14 Aedeagal shaft shorter than preatrium, without denticuli on dorsal surface (Figs 55–56)........................ reflexilis
14’ Aedeagal shaft longer than preatrium, with denticuli on dorsal surface........................................... 15
15 Aedeagal shaft with section distad of gonopore longer than basal section (Figs 16–17)......................... decedens
15’ Aedeagal shaft with section distad of gonopore shorter than basal section (Figs 47–48)......................... lutowa
description: Published as part of Liu, Yang, Fletcher, Murray J., Dietrich, Christopher H. & Zhang, Ya-Lin, 2014, New species and records of Asymmetrasca (Hemiptera: Cicadellidae: Typhlocybinae: Empoascini) from China and name changes in Empoasca (Matsumurasca), pp. 327-350 in Zootaxa 3768 (3) on pages 328-329, DOI: 10.11646/zootaxa.3768.3.4, http://zenodo.org/record/227248