Adelopsis bruchi ( Pic, 1926 )

Gnaspini, Pedro & Peck, Stewart B., 2019, Redescription of the ‘ older Adelopsis’ species (Coleoptera: Leiodidae: Cholevinae: Ptomaphagini) based on the analysis of type specimens, Zootaxa 4696 (1), pp. 1-62 : 41-43

Adelopsis bruchi ( Pic, 1926)

( Figs. 196–208 )

Ptomaphagus bruchi Pic, 1926: 1 .

Adelopsis bruchi ; Jeannel, 1936: 66 [and Figs. 73–74 ] (combination not stated as taxonomic change, because he did not mention the species was not described under Adelopsis ) (type seen); Gnaspini, 1996: 539 (types seen); Salgado, 2010: 213 (assignment to group benardi). Here assigned to group bruchi nov.

Type material examined: 2 “ type ” males and 1 “ type ” female in MNHN and 3 “ type ” specimens in MACN (Gnaspini, 1996: 541); assumed as syntypes—sex and number of specimens not given in original description, but referred to Bruch and Pic collections [but Jeannel, 1936 referred to only “ 1 male, in Pic collection”]. Labels [ MNHN specimens]: “R. Argentine / Prov. B. Ayres / C. Bruch ” // “ Ptomaphagus bruchi ” // “Jeannel vidit”. Additional 1 male and 1 female attached to the same pin with same data added of date “ 9.vii.1923 ”. All 3 MNHN specimens as well as one type male from MACN here illustrated .

For taxonomic reasons, the MNHN male “type” singly attached to a pin is here designated as lectotype; and the remaining specimens as paralectotypes.

Length: 2.5 mm (original description); 2.8 mm ( Jeannel, 1936); 2.3 mm (our measurement, all 3 MNHN specimens).

Type locality: “ Argentina ” [ Jeannel, 1936 added “ Buenos Aires ”] .

Additional material examined: 24 specimens in MACN (Gnaspini, 1996: 541). Labels: “ Prov. B. Aires / 09 vii 1923 / C. Bruch ” .

Short Redescription. Eyes normal. Winged. Male ventrites with a pair of posterior projections.Apex of the right lobe of the aedeagus seemingly subquadrate in dorsal or ventral views ( Figs. 203, 205 ), but clearly pointy, subtriangular in frontal view ( Fig. 196 ), and pointy in lateral view ( Figs. 202, 204 ). Flagellum thick and shorter (about 1/ 3 in length) than aedeagus, with a bent apex ( Fig. 203 ). Proportion aedeagus/elytron = 0.27. Spiculum gastrale of the genital segment divided at apex, with long branches ( Fig. 206 ). Male mesotibia curved, slightly bent internally ( Fig. 201 ). Spermatheca with 3-turns placed close to the spermatheca base, followed by a short and curved body ending in a sharp curve before the elongate apical bulb ( Figs. 207, 208 ). Proportion spermatheca/elytron = 0.12.

Distribution. Argentina: Buenos Aires Province: known only from type locality (from type labels [incomplete data in original description]; Jeannel, 1936; here).

Taxonomic Remarks. The pointy aedeagus in lateral view ( Figs. 202, 204 ), together with the frontal view of the tip of the right lobe of the aedeagus ( Figs. 196, 203 ), seems to help in the recognition of this species.

This species is another good example to show the need to illustrate as many views of the aedeagus as possible. For instance, the pointy nature of the apex of the right lobe of the aedeagus can be observed in frontal view of the apex ( Fig. 196 ), but cannot be seen in dorsal view ( Fig. 203 ), which is also different from Fig. 74 in Jeannel (1936), illustrated with the adeagus slightly rocked towards its apex, in which the opening of the aedeagus appears deeper and the left lobe appears longer when compared to our Fig. 203 .

Figures

FIGURES 196–208. Adelopsis bruchi (Pic, 1926), 196–201, lectotype male in MNHN, from Buenos Aires. 196, aedeagus, frontal view of aedeagus apex; 197, last ventrite; 198, antenna, dorsal view; 199, meso and metathorax, ventro-lateral view (of left side of specimen); 200, protarsus and protibia; 201, mesotarsus and mesotibia; 202–206, paralectotype male in MACN (same data). 202–205, aedeagus, left lateral, dorsal, right lateral, and ventral views; 206, genital segment; 207–208, paralectotype female in MNHN (same data), spermatheca, in different views. Scale lines = 0.5 mm; a for figs. 196, 197, 202–208; b for figs. 198–201.

FIGURES 62–75. Adelopsis orcina Szymczakowski, 1975 new status. 62–67, (probable) holotype male in CBCV, from Cueva de Camburales. 62, head, lateral view; 63, antenna, dorsal view; 64, meso and metathorax, ventro-lateral view (of left side of specimen); 65, protarsus and protibia; 66, mesotarsus and mesotibia; 67, metatarsus and metatibia; 68–69, additional male (same data). 68, last ventrite; 69, genital segment; 70–74, additional male (same data), aedeagus, left lateral, dorsal, right lateral, and ventral views, and frontal view of aedeagus apex; 75, female (same data), spermatheca. Scale lines = 0.5 mm; a for figs. 68–75; b for figs. 62–67.