Matthewsius

Gunter, Nicole L. & Weir, Thomas A., 2017, Two new genera of Australian dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) with the description of six new species and transfer of six described species, Zootaxa 4290 (2), pp. 201-243 : 215

publication ID

https://doi.org/ 10.11646/zootaxa.4290.2.1

publication LSID

lsid:zoobank.org:pub:52D6E3C3-BA0A-49C7-865C-00F3F5E5C5D4

DOI

https://doi.org/10.5281/zenodo.6032990

persistent identifier

https://treatment.plazi.org/id/03C887A8-FFC5-FFC9-FF73-7FA25AF4B099

treatment provided by

Plazi

scientific name

Matthewsius
status

gen. nov.

Key to Matthewsius View in CoL species

1. Pygidium with transverse groove at base narrowed medially ( Figs. 3 View FIGURE 3 B, D); elytral striae narrow, shallowly impressed, with simple punctures; elytra glabrous or with extremely fine setae..................................................2

- Pygidium with transverse groove at base not narrowed medially ( Figs. 3 View FIGURE 3 A, C, E–F); elytral striae wider, geminate, containing simple punctures, crenulate apically or not; elytra glabrous or with thick setae.....................................3

2. Elytra microreticulate, more evident apically, masking punctures on interstices; striae 7 short, as strongly impressed as 1–6, only present in basal 1/3; eyes separated by about 14 eye-diameters; protibiae without serrations between apical and second tooth; aedeagus with elongate parameres as in Fig. 3 View FIGURE 3 D; northern Queensland..... Matthewsius speewah (Storey & Monteith) View in CoL

- Elytra shiny, smooth; small punctures on interstices clearly visible; striae 7 much less impressed than 1–6, longer but only present in basal 2/3; eyes separated by more than 20 eye-diameters; protibiae with several serrations between apical and second tooth; aedeagus as in Fig. 3 View FIGURE 3 B; South Australia ........................ Matthewsius penelopae (Matthews & Weir) View in CoL

3. Clypeal edge with a blunt projection lateral to clypeal teeth; elytral striae punctate but not crenulate; protibiae without serrations between apical and second tooth; aedeagus as in Fig. 3 View FIGURE 3 F; Western Australia ............................................................................................. Matthewsius vanleeuweni Gunter & Weir View in CoL , new species

- Clypeal edge without a projection lateral to clypeal teeth; elytral striae more-or-less crenulate, at least apically; protibiae with several serrations between apical and second tooth...........................................................4

4. Elytral surface smooth, intervals finely punctate, glabrous; male protibiae abruptly widened apically from second tooth; female pygidium not much more convex than that of male; male metatibiae slightly bent on inner side and slightly twisted; aedeagus as in Fig. 3 View FIGURE 3 A; New South Wales ............................................ Matthewsius illawarrensis (Matthews) View in CoL

- Elytral surface slightly uneven, intervals with long or short setae; male protibiae gradually widened from base to apex; female pygidium markedly more convex than that of male; male metatibiae slightly bent on inner side but not twisted............5

5. Elytral intervals with punctures bearing long, backwardly curving setae; setae as long as distance between punctures; punctures tending to become elongate laterally; striae deeply impressed; aedeagus as in Fig. 3 View FIGURE 3 C; New South Wales .......................................................................................... Matthewsius rossi (Matthews) View in CoL

- Elytral intervals with punctures bearing extremely short setae; setae barely longer than the width of a puncture; punctures mainly round laterally; striae less deeply impressed; aedeagus as in Fig. 3 View FIGURE 3 E; New South Wales ................................................................................ Matthewsius stricklandensis Gunter & Weir View in CoL , new species

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scarabaeidae

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