Macrolygistopterus kirschi Pic, 1931

Ferreira, Vinicius S., 2016, A revision of the genus Macrolygistopterus Pic, 1929 (Coleoptera, Lycidae, Calochromini), Zootaxa 4105 (4), pp. 321-338 : 334-335

Macrolygistopterus kirschi Pic, 1931

( Figs. 9 , 18 , 35 , 45 )

Macrolygistopterus kirschi Pic, 1931: 4 (original description); Kleine, 1933: 104 (catalogue); Blackwelder, 1945: 351 (catalogue).

Type material. Macrolygistopterus kirschi : syntype, female, Buenos Aires, Argentine, Kirsch col, 1878, hereby designated as lectotype, deposited at SGFN.

Diagnosis. A wide black stripe on pronotum with only lateral margins testaceous and elytral costae I and II apically fused, forming an arch; costae III subapically fused with the arch formed by costae I+II; costa IV following alone without touching the elytral apex ( Fig. 35 ).

Redescription. Head black, with short rostrum, as long as 3x the median interocular distance of eyes ( Fig. 18 ); median interocular distance of 3x the width of eyes. Mandibles short, slightly curved, testaceous, connates to labrum. Antennae black, scape subconic, pedicel small, ca. 1/4 the length of scape; antennomere III as long as sum of I+II; antennomere IV slightly longer and wider than III; antennomeres V to XI gradually decreasing in length.

Pronotum pentagonal, with rounded angles; with a wide black stripe on pronotum, with only lateral margins testaceous; a pair of longitudinal elevations parallels, broadened in middle third; a pair of oblique elevations starting from posterior angles and touching the broadened region in the middle third.

Elytra subparallel, lateral margins stout, testaceous, apical third blackened. Arrangement of elytral costae: elytral costae I and II apically fused, forming an arch; costae III subapically fused with the arch formed by costae I+II; costa IV following alone without touching the elytral apex ( Fig. 35 ).

Width at humeri> 3.2mm. Elytral length—9.6mm.

Distribution. Buenos Aires, Argentine, only known by the lectotype ( Fig. 45 ).

Examined material. Lectotype: ♂, Buenos Ayres Kirsch, [18]78, Kirschi n. sp., 1♂ (photography provided by SGFN).

Figures

FIGURES 1 – 9. Dorsal view: 1. Macrolygistopterus succinctus; 2. M. quadricostatus; 3. M. caeruleus; 4. M. germaini; 5. M. grandjeani; 6. M. simoni; 7. Macrolygistopterus subparallelus; 8. M. testaceirostris; 9. M. kirschi.

FIGURES 10 – 18. Rostrum: 10. Macrolygistopterus succinctus; 11. M. quadricostatus; 12. M. caeruleus; 13. M. germaini; 14. M. grandjeani; 15. M. subparallelus; 16. M. testaceirostris; 17. M. simoni; 18. M. kirschi. Scale bar 1 mm.

FIGURES 27 – 35. Elytra: 27. Macrolygistopterus succinctus; 28. M. quadricostatus; 29. M. caeruleus; 30. M. germaini; 31. M. grandjeani; 32. M. subparallelus; 33. M. testaceirostris; 34. M. simoni; 35. M. kirschi Scale bar 1 mm.

FIGURES 45 – 46. Distribution maps: 45. Distribution of Macrolygistopterus caeruleus, M. germaini, M. grandjeani, M. simoni, M. subparallelus, M. testaceirostris and M. kirschi. 46. Distribution of M. succinctus and M. quadricostatus.