Macrolygistopterus grandjeani Pic, 1930

Ferreira, Vinicius S., 2016, A revision of the genus Macrolygistopterus Pic, 1929 (Coleoptera, Lycidae, Calochromini), Zootaxa 4105 (4), pp. 321-338 : 332

Macrolygistopterus grandjeani Pic, 1930

( Figs. 5 , 14 , 23 , 31 , 39 , 45 )

Macrolygistopterus grandjeani Pic, 1930a: 83 (original description); Kleine, 1933: 104 (catalogue); Blackwelder, 1945: 351 (catalogue).

Type material. Macrolygistopterus grandjeani : syntype, male, Durango, Mexico, hereby designated as lectotype, deposited at MNHN.

Diagnosis. Pronotum transverse, rectangular, elytra blue, subparallels, both densely pubescent, short rostrum.

Redescription. Head black, prolonged in short rostrum, as long as sum of antennomeres I+II+III ( Fig. 14 ); coronal suture widened close to antennal insertion; median interocular distance of 3x width of eye. Mandibles curved, longer than labrum, orange. Maxillary palp with palpomere I short, ca. 1/3 the length of II; palpomere II elongated, as long as the sum of III+IV; palpomere IV securiform. Antennae with seven antennomeres (others missing), scape conic, 1/3 the shorter than III; pedicel minute, ca. 1/4 the length of scape; antennomere III as long as I+II; antennomere IV slightly larger and longer than III; antennomeres V to VII gradually shorter.

Pronotum rectangular, slightly wider than longer (6:7), with rounded angles and posterior angles pronounced and lateral margins not pronounced, densely pubescent, orange, with a wide longitudinal black stripe; pair of longitudinal elevations parallels, slightly larger in basal third, with pair of oblique carinae starting from basal 2/4 ( Fig. 23 ). Scutellum dark blue, transverse, subquadrate ( Figs. 5 , 31 ).

Elytra subparallel, dehiscent, margins stout and pronounced, bluish black, pubescent. Arrangement of elytral costae: costae I and II region and costae III and IV fused in subapical region, each of the fusions continuing as a single costa, not reaching the apex.

Female ventrite VII transverse, laterally moderately pubescent, with a shallow and wide groove dividing the apex, forming two backwards divergent apices ( Fig. 39 ).

Width at humeri> 3.1mm. Elytral length—13.0mm.

Distribution. Durango, Mexico, only known by the lectotype ( Fig. 45 ).

Examined material. Durango, Mexique, 1♀ (lectotype) ( MNHN).

Male unknown.

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 19 – 26. Pronotum: 19. Macrolygistopterus succinctus; 20. M. quadricostatus; 21. M. caeruleus; 22. M. germaini; 23. M. grandjeani; 24. M. simoni; 25. M. subparallelus; 26. M. testaceirostris. 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 36 – 40. Female ventrite VII: 36. Macrolygistopterus succinctus; 37. M. quadricostatus; 38. M. caeruleus; 39. M. grandjeani; 40. M. testaceirostris. 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.