Ptenidium grande, Darby, Michael, 2016

Darby, Michael, 2016, Studies of Peruvian Ptiliidae (Coleoptera) 4: Peruvium a new subgenus of Ptenidium with seven new species, Zootaxa 4107 (3), pp. 392-402 : 401

Ptenidium grande sp. n.

(Figs. 5, 21, 33a–b, 42, 44, 48, 49)

Habitus Fig. 5. Length 1.27 mm. Colour black, shining, appearing polished, antennae and legs dusky yellow. Dorsum very finely punctulated and pubescent, particularly towards the lateral margins. Antennomeres 3–11 0.43 mm long. Head with shorter, thicker pubescence on frons, temples slightly raised over antennal insertions. Width across eyes 0.35 mm. Mentum and submentum Fig. 44 . Pronotum with narrow lateral margins just turning onto anterior angles and with setae at hind angles, 0.55 mm wide, 0.33 mm long. Elytra 0.77 mm long, 0.58 mm wide. Scutellum with a very small central basal keel and two large punctures situated medially. Proventral keel between procoxae Fig. 21. Mesoventral collar and keel Fig. 49 .

Male: aedeagus Figs. 33 a–b; ventrite VI with medial patch of setae; anterior margin forming two pits and posterior margin with two semi-circular incisions Fig. 48 ; ventrite VII Fig. 42 .

Female: not known.

Etymology. Refers to the large size of the species.

Diagnosis. Distinguished by its large size.

Type data: Holotype: ♂, PERU: Cusco Dept.: Villa Carmen Field Station, cafeteria ~ 1.7 km west, research transect, 12.89250°S 71.41917°W, 555m, 21–22.V.2011, D.J.Bennett & E. Razuri, flight intercept trap, PER-11- FIT-007 ( MUSM).

Figures

FIGURES 37 – 49. 37. P. brevissimum antenna; 38. P. contractum antenna; 39. P. gibbosum antenna. 40. P. gibbosum antennomeres 10 & 11 x 1340; 41. P. inornatum abdominal ventrite VII; 42. P. grande abdominal ventrite VII; 43. P. gibbosum mentum and mouthparts x 970; 44. P. grande mentum and submentum x 355; 45. P. inornatum posterior margin of metaventrum and abdominal segments x 665; 46. P. inornatum medial setae on posterior margin of metaventrum x 665; 47. P. inornatum insertion points of medial setae (abraided) on posterior margin of metaventrum x 3800; 48. P. grande abdominal ventrites x 635; 49. P. grande mesoventrum x 355.

FIGURES 33 – 36. Aedeagus. 33 a & b. P. grande; 34. P. gibbosum; 35 a & b. P. inornatum; 36 a & b. P. brevissimum.