Anticyphon, RUTA

Ruta, Rafał, 2018, Two New Species of Anticyphon Ruta (Coleoptera: Scirtidae) from Argentina and Ecuador, The Coleopterists Bulletin 72 (4), pp. 707-712 : 711-712

AN UPDATED IDENTIFICATION KEY TO THE SPECIES OF ANTICYPHON (modified from Ruta 2016)

Note. Females are known for two species only. Therefore, only males can be identified with the use of the following key.

1. Body larger (TL = 6.50–6.80 mm); pronotal disc with normal, not granulate punctation; lateral processes of trigonium absent; pala of penis with membranous dorsal process ....................... 2

REFERENCES CITED

Chaboo, C. S., and W. D. Shepard. 2015. Beetles (Coleoptera) of Peru: A survey of the families. Clambidae, Eucinetidae, Scirtidae (Scirtoidea). Journal of the Kansas Entomological Society 88 (2): 208–210.

Klausnitzer, B. 2012. Zur Kenntnis der Gattung Prionocyphon L. Redtenbacher 1858 sensu lato (Coleoptera, Scirtidae) aus Südamerika. Linzer biologische Beiträge 44 (2): 1177–1194.

Klausnitzer, B. 2013. Neue Arten der Gattung Prionocyphon L. Redtenbacher 1858 aus Südamerika (Coleoptera, Scirtidae). Linzer biologische Beiträge 45 (1): 775–787.

1 ʹ. Body smaller (TL = 3.80–5.80 mm); pronotal disc with granulate punctation; lateral processes of trigonium absent; pala of penis without dorsal process ........................... 3

Lawrence, J. F. 2001. A new genus of Valdivian Scirtidae (Coleoptera) with comments on Scirtoidea and the beetle suborders. Special Publication of the Japan Coleopterological Society 1: 351–361.

2. Trigonium distinctly shorter than parameroids ............... A. santanderensis Ruta

Libonatti, M. L. 2014. A revision of the genus Ora Clark, 1865 (Coleoptera: Scirtidae) in Argentina (part I) – descriptions of new species. Zootaxa 3884 (1): 27–44.

2 ʹ. Trigonium almost as long as parameroids .... .................................. A. davidsoni Ruta

3. Median process of trigonium distinctly shorter than parameroids; parameres bifid at base, with mesal processes ............................. 4

Libonatti, M. L. 2015. A revision of the genus Ora Clark, 1865 (Coleoptera: Scirtidae) in Argentina (part II) – redescriptions, updated distributions and a key to species. Zootaxa 3985 (1): 69–97.

3 ʹ. Median process of trigonium as long as parameroids; parameres simple .................... 5

Libonatti, M. L., and R. Ruta. 2013. Review of the Argentinean species of Pseudomicrocara Armstrong (Coleoptera: Scirtidae). Zootaxa 3718 (2): 137–157.

4. Parameres more than 3X longer than trigonium ........................ A. peruvianus Ruta

4 ʹ. Parameres less than 2X longer than trigonium .......... A. lescheni Ruta , new species

Ruta, R. 2011. Chilarboreus gen. nov., a new genus of Chilean Scirtidae (Coleoptera: Scirtoidea), with descriptions of three new species. Journal of Natural History 45: 1689–1713.

5. Parameroids subparallel in dorsal view .......... 6

5 ʹ. Parameroids curved in dorsal view .......... 7

6. Trigonium with lateral lobes, parameres strongly sclerotized, without denticle in basal portion ................... A. ecuadorensis Ruta

Ruta, R. 2016. Anticyphon gen. nov., a new genus of Scirtidae (Coleoptera: Scirtoidea) inhabiting high altitude Andean cloud forests and páramo formation. Zootaxa 4175: 301–318.

6 ʹ. Trigonium without lateral lobes, parameres membranous, with small, subtriangular denticle in basal portion ............................... ........... A. argentinensis Ruta , new species

7. Body broadly oval, uniformly brownish; median process of trigonium straight; parameroids widely separated .............. A. oyonensis Ruta

7 ʹ. Body oblong, contrasting brown and black to totally black; median process of trigonium curved in lateral view; parameroids narrowly separated in apical portion ........................ .............................. A. paramoensis Ruta

ACKNOWLEDGMENTS

Adam Ślipiński and Cate Lemann are thanked for their hospitality during the author’ s stay in Canberra and for allowing study in the ANIC collection of Scirtidae . Zack Falin (University of Kansas) is thanked for sending SEMC specimens. Anonymous reviewers are thanked for their helpful suggestions.

(Received 27 March 2017; accepted 10 October 2018. Publication date 28 December 2018.)