Lasiodactylus

Cline, Andrew R. & Carlton, Christopher E., 2004, Review of Lasiodactylus Perty, with Descriptions of Three New Species (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 58 (3), pp. 355-368 : 356-357

Key to species of Lasiodactylus

1a) Male protibia narrow at base greatly produced/dilated at apical one-third with pronounced inner curvature ( Fig. 16 ), ovipositor with large pit at gonocoxal apex from which the gonostylus originates ( Figs. 39, 42 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2

1b) Male protibia broad at base, moderately produced/dilated at apical one-third with little inner curvature ( Figs. 14–15 ), gonocoxites without large apical pits ( Figs. 40–41 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3

2a) Metacoxal line diverging posteriorly toward basal margin of abdominal sternite, pronotal punctation faintly impressed and widely separated, double row of elytal punctation separated by at least 1 puncture diameter, male metatibia slender in basal one-third with pronounced inner curvature ( Fig. 22 ), male anal sclerite with medial notch and some curved apical setae ( Fig. 26 ), tegmen large L:W ratio;2.4:1 and noticeably curved ventrally ( Fig. 33 ), ovipositor paraprocts with multiple projections apically ( Fig. 38 ), gonocoxites fused in apical one-fourth without a medial notch ( Fig. 42 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Lasiodactylus kelleri new species ( Argentina)

2b) Metacoxal line not diverging posteriorly, pronotal punctation deeply coarsely impressed and densely distributed, double row of elytal punctation separated by less than 1 puncture diameter, male metatibia robust in basal one-third with little inner curvature, male anal sclerite without medial notch and no curved apical setae ( Fig. 23 ), tegmen L:W ratio;2.2:1 with little ventral curvature ( Fig. 27 ), ovipositor paraprocts with inner apical projection only ( Fig. 35 ), gonocoxites not fused in apical one fourth ( Fig. 39 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - L. brunneus Perty ( Peru, Bolivia, Paraguay, and Brazil)

3a) Prosternal process with short vertical face and flattened medially ( Fig. 8 ), pygidium narrowly rounded at apex ( Fig. 11 ), terminal segment of maxillary palp oblong with sensillar area not extending across entire apex ( Fig. 3 ), tegmen with concave basal margin and many hairs scattered along the lateral margin including a longer tuft in the middle ( Fig. 29 ), male anal sclerite with numerous setae at apex ( Fig. 24 ), gonocoxites fused in basal two-thirds with a medial notch present ( Fig. 40 ), paraprocts with prominent central lobes that overlap gonocoxites ( Fig. 36 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - L. falini new species ( Suriname, Fr. Guiana)

3b) Prosternal process without vertical face, rounded at apex ( Fig. 9 ), pygidium nearly truncate at apex ( Fig. 12 ), terminal segment of maxillary palp enlarged apically ( Fig. 4 ), inner fossa of meso- and metatibia large ( Figs. 18, 21 ), tegmen with straight perpendicular basal margin and only a few short hairs scattered along the lateral margin ( Fig. 31 ), male anal sclerite with tuft of setae medially at apex ( Fig. 25 ), gonocoxites not fused along entire length ( Fig. 41 ), paraprocts lacking prominent central lobes ( Fig. 37 ) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - L. centralis new species (Central America)

Figures

Figs. 14–22. Tibiae of Lasiodactylus spp. 14–16) Protibia; 14) L. falini; 15) L. centralis; 16) L. kelleri. 17–19) Mesotibia; 17) L. falini; 18) L. centralis; 19) L. kelleri. 20–22) Metatibia; 20) L. falini; 21) L. centralis; 22) L. kelleri. Scale bar ¼ 1.00 mm.

Figs. 35–42. Female genitalia of Lasiodactylus spp. 35–38) Paraprocts; 35) L. brunneus; 36) L. falini; 37) L. centralis; 38) L. kelleri. 39–42) Gonocoxites; 39) L. brunneus; 40) L. falini; 41) L. centralis; 42) L. kelleri. Scale bar ¼ 0.8 mm.

Figs. 23–34. Male genitalia of Lasiodactylus spp. 23–26) Anal sclerite; 23) L. brunneus; 24) L. falini; 25) L. centralis; 26) L. kelleri. 27–34) Tegmen and median lobe; 27–28) L. brunneus; 29–30) L. falini; 31–32) L. centralis; 33–34) L. kelleri. Scale bar ¼ 0.8 mm.

Figs. 3–13. External characters of Lasiodactylus. 3–4) Maxillary palpi; 3) L. falini; 4) L. centralis. 5–7) Antennomeres 8–11; 5) L. falini; 6) L. centralis; 7) L. kelleri. 8–10) Prosternal process, lateral aspect; 8) L. falini; 9) L. centralis; 10) L. kelleri. 11–13) Pygidium; 11) L. falini; 12) L. centralis; 13) L. kelleri. Scale bar ¼ 0.25 mm for Figures 3–4, 0.5 mm for Figures 5–13.