Eight new species and a subspecies of the genus Lasioderma are described from North Africa: L. brunneum, L. creperum, L. degachesis, L. gilvum, L. mahunkai, L. rabusculum, L. reitteri reitteri, L. thynaensis spp.n. and L. reitteri luridum ssp.n. Each species differs from others by group of characters. Fore tibia of L. brunneum and L. gilvum are widened to their apices. Only L. creperum has oval eyes, the rest species have round eyes. The antennae of the majority of investigated species are with the 3rd antennal segment 1.5–1.7 times as long as the 2nd one, but only in L. degachesis and L. gilvum the 3rd segment is as long as the 2nd one. Posterior angles of pronotum are absent in L. gilvum and L. mahunkai only. Surface of the majority of species is covered with uniform punctation with the exception of L. mahunkai, L. rabusculum, L. reitteri which have surface with dual punctation.
L. brunneum (Tunisia) is dark brown, antennae brownish, pubescence yellow grey, suberect. 5–10th antennal segments with convex lateral margin. Pronotum 1.4 times as wide as long, pubescence parted to two sides on pronotal disc. Elytra 1.4 times as long as wide, surface wrinkled. Anterior rims of metasternum are strongly approximated and curved forward in the middle. Pseudopositor: styles look as small cones. Length 3.25 mm. L. creperum (Algiers) has blackish brown dorsal surface and black ventral one. Pubescence rather light, appressed. 4–6th antennal segments with straight and 7–10th ones with convex lateral margins. Pronotum 1.5 times as wide as long; pubescence not parted to two sides on disc. Elytra 1.5 times as long as wide, surface with dense punctation and wrinkles. Anterior rims of metasternum are approximated and curved forward in the middle. Pseudopositor: styles look as cones with blunt top, 1.7 times as long as their thickness. Length 3.1–3.4 mm. L. degachesis (Tunisia) has black head and ventral surface, elytra from dark brown in the basal part to bright yellow on elytral apex. Pubescence yellow grey, appressed. 5–10th antennal segments with convex lateral margin. Pronotum 1.44 times as wide as long, pubescence not pared to two sides on pronotum. Elytra 1.44 times as long as wide, their surface wrinkled with punctation. Anterior rims of metasternum are approximated in the middle; 1st rim straightened, 2nd one curved forward. Aedeagus: penis 7.7 times as long as wide at its apex; internal penial sac with two rows (4+4) of small spines and two needle-shaped sclerites in apical third of sac and 4 very small spines in apex. Length 1.9 mm. L. gilvum (Tunisia) is light yellow, pubescence suberect. 4–10th antennal segments with convex lateral margin; 4th and 5th segments are the most large, 10th segment is smaller than the 9th one. Pronotum 1.4 times as wide as long, pubescence not parted to two sides. Elytra 1.5 times as long as wide. Anterior rims of metasternum not approximated in the middle, evenly rounded. Aedeagus: penis 7.7 times as long as wide at its apex, internal penial sac with 6 different spines. Length 2.0–2.5 mm. L. mahunkai (Tunisia) is rufous, antennae yellow. Pubescence light, appressed. 5–10th antennal segments with convex lateral margin. Pronotum 1.6 times as wide as long; pubescence parted to two sides on pronotum. Elytra 1.6 times as long as wide. Anterior rims of metasternum a little approximated in the middle, evenly rouded. Aedeagus: penis 7 times as long as wide at its apex; internal penial sac with a dozen of rather small spines and 3 small spines. Length 3.9 mm. L. rabusculum (Tunisia) is yellow or brown, ventral surface darker. Pubescence slightly suberect on sides. 4–5th segments with oblique anterior margin, 6–10th segments with slightly convex lateral margin. Pronotum 1.4 times as wide as long; pubescence parted to two sides. Elytra 1.7 times as long as wide. Anterior rims of metasternum are approximated in the middle, 1st rim straightened, 2nd one curved forward. Pseudopositor: styles look as short cones sitting on oblique tops of coxites. The tops are surrounded along perimeter by rather long chaetae. Length 2.85–3.00 mm. L. reitteri reitteri (Egypt): dorsal surface is brownish black, head, antennal ends, and ventral surface black. Pubescence dark, appressed. 4–5th antennal segments with oblique and concave anterior margin; 6-8th segments with convex lateral margin (the antennal ends are lost). Pronotum 1.4 times as wide as long, pubescence not parted to two sides on pronotum. Elytra 1.5–1.6 times as long as wide, their surface wrinkled. Metasternum 1.1 times as long as the 1st visible abdominal sternite. Anterior rims of metasternum are approximated in the middle, 1st rim straightened, 2nd one curved forward. Aedeagus: penis 7 times as long as wide at its apex; internal penial sac with two rows (3+4) of small spines and 5 large spines. Length 2.25–2.60 mm. L. reitteri luridum (Egypt): dorsal surface, antennae (except 1st segment), legs light yellow; head, 1st antennal segment, and ventral surface brown. 6-8th antennal segments with straight lateral margin, 9–10th ones with convex lateral margin. Pubescence parted to two sides on pronotal disc. Elytra 1.5 times as long as wide. Metasternum 1.26 times as long as the 1st visible abdominal sternite. Aedeagus: internal penial sac with 1 row of small spines, 3 spines of middle sizes, and 4 large spines. The rest characters are similar to L. r. reitteri. Length 2.5 mm. L. thynaensis (Tunisia): dorsal surface, antennae (except 1st segment), and legs yellow, head, 1st antennal segment, and ventral surface brown, sometimes abdomen black. Pubescence yellowish, appressed. 4–8th segments with oblique anterior margin and straight lateral one, 9–10th segments with slightly convex lateral margin. Pronotum 1.6 times as wide as long; pubescence parted to two sides on pronotal disc. Elytra 1.7 times as long as wide, their surface with wrinkles and uniform punctation. Anterior rims of metasternum are strongly approximated in the middle, 2nd rim curved forward. Aedeagus: penis 7 times as long as wide at its apex, internal penial sac with two rows (7+4) of small spines and 2 large spines. Length 3.0–3.75 mm.