Alyma rieseorum Arias, 2004

Arias, Elizabeth T., 2004, A New Click Beetle Genus from Chilean Temperate Forests, ALYMA (Coleoptera: Elateridae: Pomachiliini), The Coleopterists Bulletin 58 (3), pp. 413-427 : 413-427

Alyma rieseorum Arias , new species

( Figs. 12 , 20 , 27 , 34 )

Description. Body: Elongate; yellowish brown; integument semi-shiny; vestiture semidecumbent and semi-erect and gold; length 4.6 mm, width 1.8 mm; PEI: 2.6.

Head: convex, brown; frontoclypeal carina sloping down; clypeus rugulose; clypeus and labrum with setae semi-erect; labrum slightly convex; 2.3 3 as long as wide, basally with 5 long setae decumbent; apical segment of labial palp shiny; antennomera 3, 4, 9, 10, conical, antennomera 5 though 8 serrate, antennomere 11 triangular, [AP: 8-7-9-13-10-9-10-11-9-14] ( Fig. 12 ).

Prothorax: strongly convex; alveolate, sides parallel-sided; base curved; pronotal posterior angles straight; prosternum slightly convex; pronotosternal lobe margin broadly curved, and

Downloaded From: https://bioone.org/journals/The-Coleopterists-Bulletin on 26 Aug 2021

Terms of Use: https://bioone.org/terms-of-use Access provided by The Coleopterists Society

contulmoensis ; 31) A. lawlerae ; 32) A. quiriquinaensis ; 33) A. shapiroi . Scale bar: 0.5 mm.

slightly bent; pronotosternal suture curved, slightly excavate; hypomeron punctate, umbilicate, punctures dense, marginate apically, antennal impression ( Fig. 20 ); prosternum at procoxae slightly marginate, sides slightly elevated; procoxae separated by 1.2 3 procoxal diameter; pronotosternal spine process length 1.5 3 procoxal diameter.

Scutellum : triangular; 0.9 3 as long as wide, with long semi-decumbent yellow vestiture; mesocoxae separated by 0.7 3 mesocoxal diameter; posterior margin of mesosternal cavity extending posteriorly, 0.3 3 mesocoxal diameter.

Elytra: striate; interstria rugulose semi-convex; striae slightly punctate, punctures sparse; elytral apex truncate. Leg: light yellow; tarsomere 3 smaller than tarsomere 4; [TP: 34-13-9-11-33] ( Fig. 27 ).

Type Material. Holotype: female, Canelillos, Cauquenes. 5.XI.1991. Leg: M. Elgueta.

Distribution. Cauquenes, VII Region, Chile, ( Fig. 34 ).

Remarks. Alyma rieseorum can be recognized by its yellowish color and its semishiny integument and posterior pronotal posterior angles.

Etymology. The name of this species honors Sergio Riese and Maria Luisa Riese (Genoa), who contributed Chilean elaterid specimens for my research.

Figures

Figs. 6–13. Antenna of Alyma species. 6) A. pallipes; 7) A. ariasvillegasai; 8) A.

Figs. 14–21. Pronotal hypomera of Alyma species. 14) A. pallipes; 15) A. ariasvillegasai; 16) A. calafquenensis; 17) A. contulmoensis; 18) A. lawlerae; 19) A. quiriquinaensis; 20) A.

Figs. 22–28. Tarsi of Alyma species. 22) A. pallipes; 23) A. ariasvillegasai; 24) A.

Fig. 34. Distribution map of Alyma species. Alyma pallipes (Solier) (N), A. ariasvillegasai