Magdalis (Amblyodontomagdalis) flatus Lu and Zhang

Lu, Xiuxia, Legalov, Anderi A. & Zhang, Runzhi, 2005, A New Subgenus And Two New Species Of Magdalis Germar From Northern China (Coleoptera: Curculionidae: Magdalinae), The Coleopterists Bulletin 59 (3), pp. 369-378 : 373-375

Magdalis (Amblyodontomagdalis) flatus Lu and Zhang , new species

(Figs. 1,2)

Holotype. China. Urumqi : Male. [Urumqi (43.8N, 87.6E), Xinjiang Antonomous Region, China, 1995. IX. 10, Leg. Ma Shijun, Xia Kailing and Chen Yonglin.]

Diagnosis. Body black. Rostrum longer than head but shorter than prothorax. Antennae inserted slightly in front of middle of the rostrum, funicle 7-segmented, longer than club, its 1 st flagellar segment longer and broader than others, nearly as long as the next two segments combined. Prothorax with obtuse teeth near middle of the lateral margins, median carina distinct. Scutellum flat, not completely filling space between elytral bases and pronotum. Elytral striae narrower, with regular punctures; intervals flat, rugose, 2–3 times broader than striae. All femora stout and with teeth, that of profemur larger. Inner margin of tibiae minutely serrulated. Claws simple, without basal teeth.

Description. Male ( Fig. 1) Elongate-oblong. Length 3.9 mm. Body black; apex of femora and tibiae dark brown, antennae and tarsi yellow. Head ( Fig. 2A) length 0.4 mm moderately convex and dorsal surface densely punctate; venter area finely rugose. Eyes transverse, yellow, large and weakly convex, interocular space 1/2 width of base of rostrum; frons without distinct median fovea. Rostrum ( Fig. 2A) length 0.7 mm, longer than head but shorter than prothorax, cylindrical, with moderately dense and deep punctures, punctures on dorsal basal part more dense and deep than apical part. Viewed in profile, moderately curved; viewed dorsally, almost parallel from base to antennal insertion, slightly dilated from antennal insertion to the apex. Antennae ( Fig. 2C) inserted slightly in front of middle of the rostrum. Antennal scrobe obliquely directed toward upper ocular margin. Scape length 0.5 mm, weakly bent, slim, apex broadened, nearly as long as funicle together; funicle 7-segmented, sparsely pubescent, longer than antennal club; 1st flagellar segment longer and broader than others, nearly as long as the next two segments combined; 2nd segment shorter than 1st, but longer than others; 3rd–6th segments nearly equal in length; 7th segment slightly dilated, distinctly separated from antennal club; funicle with proportion in length from base as 10:6:4:4:4:4:5. Club length 0.4 mm, elongate oval, 3-segmented, with proportion in length from base as 14:11:19. Prothorax ( Fig. 2B) 1.1 times as broad as long, slightly convex, apical constricted, with three obtuse teeth near middle of the sides; with distinct median carina; its apical 2/5 with a depression; disc with sparse white pubescence, covered with dense, deep, close and large punctures; base of prothorax bisinuate; hind angle expanded, acutely angled. Scutellum flat, on the same plane as elytra, not completely filling space between elytral bases and pronotum.

Elytra length 2.3 mm, width 2.1 mm, 1.1 times longer than broad; elytra covered with dense white pubescence; base of elytra slightly broader than posterior of prothorax, slightly covered over prothorax; suture and margin around scutellum elevated strongly; striae narrow, with regular punctures, interspace between punctures on the same plane as elytral intervals; intervals flat, rugose, 2–3 times broader than striae. Legs ( Fig. 2D) femora and tibiae with white pubescence. Femora stout and with teeth, that of front femur larger; tibiae strongly uncinate at tip with several short setae behind, inner margin of tibiae bisinuate, minutely serrulate and with a bunch of sparse long setae; tarsi spongy beneath, 3rd segment broader, bilobed, 1st segment of tarsi longer than others; claws simple, without basal teeth. Venter covered with dense white pubescence; abdominal sternum 1 and 2 wider, flat in middle. Front coxae contiguous, the middle coxae and the hind coxae separated. Genitalia ( Fig. 2E–F) aedeagus cylindrical, surface smooth.

Female unknown.

Host Plant. Unknown.

Etymology. The specific epithet is derived from the flat elytral interval.