S. Mahunka szerk.: Folia Entomologica Hungarica 43/1. (Budapest, 1982)

to come to naught. Antennái club loose, 3 to 4-jointed (figs. 10, 11). Body colour usually redbrown. Besides the type species L. anatolica the subgenus contains also L. seidlitzi, also from Asia Minor. Lederia s.str. Type species: Lederia suramensis Reitter, 1879. Diagnosis: Distinguishable from the species of the other subgenera by the suture dividing metepisterna and metasterna shortened and expressed only anteriorly (fig. 19). Antennái joint 3 less than twice thinner than the 2nd (fig. 9). This subgenus contains, along with the type species L. suramensis from the Caucasus, only L. arctica from northwestern North America. Key to the subgenera and species of Lederia Rtt. 1(24) Suture dividing metepisterna and metasterna complete (figs. 17, 18, 20). 2(21) Lateral margins of pronotum completely edged. Prothoracic process dividing procoxae chiefly rather narrow, sharpened at apex. Antennái joint 3 in Lederina spp. not less than 2.0 to 2.5 times narrower and 2.5 to 3.0 times shorter than 2nd (fig. 7). 3(4) Anterior part of metacoxa broader, nearly not narrowing outward and certainly not coming to naught (fig. 17). Antennái club rather well expressed, 3-jointed. Body more or less ovoid, 1.82 times as long as wide. Elytra broadest between anterior 1/3 and 1/4 of their length. Head and elytra distinctly punctured by medium-sized points; isthmus between punctures at anterior part of elytra not less than 1.3 to 1.4 times as large as diameter of a puncture. Pronotum very finely shagreen and sparsely and finely punctured. Body blackbrown or brown, elytra slightly shining, ventrum partly lighter, antennae and legs radbrown. Length 1.5 to 1.6 mm. Chile (Chiloe island) L. (Fuscatelia) oviformis (Fairm. et Germ.). 4(3) Anterior part of metacoxa narrower, clearly narrowing outward to come to naught (fig. 18, 20). Body light, red-brown, or partly darkened. 5(20) Antennái joint 3 very narrow, not less than 2.0 to 2.5 times thinner and 2.5 to 3.0 times shorter than 2nd; club rather distinctly demarcated, 3-jointed (fig. 7). Metepisterna narrow, not less than 5 to 6 times longer than wide anterriorly (fig. 20) Subgenus Lederina 6(15) Smaller: 1.2 to 1.7 mm. Spurs of metatibiae longer, the longer of them almost reaching apex of tarsal joint 2 (fig. 25). In both sexes abdomen without axial depression. Metasternum very finely punctured, usually better along axis and lateral. Colour light red-brown or brown, rarely meso-, metathorax and partly elytra darker, dark red-brown or brown (L. similis sp.n.). Maxillary palpi and antennae always lighter, red-yellow. Dorsul dull or slightly shining, clothed with short, silky, decumbent, grey-yellowish pubescence. Pronotum finely transversely shagreen and exceedingly finely and sparsely punctured. Elytra well and finely punctured (still coarser and denser than pronotum), as well as very finely shagreen; usually isthmus between punctures at anterior part of elytra clearly larger than diameter of a puncture. Five closely related species from Vietnam, Nepal and India. 7(12) Metathorax with an axial depression (figs. 28-30). 8(9) Axial depression of metathorax wider, ablong-oval, posteriad sharpened, anteriad reaching approximately to first quarter of metathorax (fig. 28). Body oblong-oval, dorsally slightly shining, ca. 1.93 times longer than wide (fig. 4). Aedeagus as depicted (fig. 36). Length 1.2 mm. Vietnam L. (Lederina) minima sp.n. 9(8) Axial depression of metathorax considerably narrower, more or less narrowly lanceolate, anteriad reaching to half, first third or quarter of metathorax (figs. 29, 30). 10(11) Axial depression of metathorax narrower, narrowly lanceolate, reaching approximately to first third of metathorax (fig. 29). Colour red-brown, surface slightly shining, maxillary palpi, antennae, prothorax, partly legs and abdomen lighter, reddish-yellow. Body 1.87 times longer than wide. Parameres considerably longer than central lobe of aedeagus (fig. 33). Length 1.6 mm. India (West Bengal) L. (Lederina) indica sp.n. 11(10) Axial depression of metathorax broader, more or less lanceolate, varying in lenght, in females reaching to half of metathorax, in males ending between first quarter and a half