Burumoseria Csiki, 1939

Lee, Chi-Feng & Konstantinov, Alexander, 1939, A New Species ofBurumoseriaCsiki, 1939 from Taiwan, with Redescription of the Genus and New Synonymy ofLicyllusJacoby, 1885 withThrasychromaJacoby, 1885 (Coleoptera: Chrysomelidae: Galerucinae: Alticini), The Coleopterists Bulletin 1885 (2), pp. 325-331 : 325-331

Burumoseria Csiki, 1939

( Figs. 1 , 4–19 )

Burumoseria Csiki, 1939: 13 (new name for Moseria Weise, 1922 , homonym of Moseria Ghigi, 1909 ).

Moseria Weise, 1922: 110 (type species: Moseria partita Weise, 1922 , by monotypy, type locality: Indonesia: Buru Island ).

Redescription. Body length 4.36–4.90 mm; body width (widest point of elytra) 2.27–2.60 mm. Body length to width ratio 1.92–1.96. Elytron dark yellow with dark brown or black stripe along suture, with or without other dark markings. Pronotum dark yellow. Head: Midcranial and frontal sutures absent. Supraorbital sulcus barely present, represented by shallow fold between antennal callus and orbit. Orbital sulcus present dorsally or absent. Supraantennal sulcus welldeveloped. Supracallinal sulcus convex, well- or poorly developed. Midfrontal sulcus long, straight. Antennal calli nearly trapezoidal, longitudinal, entering interantennal space, their surface situated above surface of vertex. Frontal ridge dorsally as wide as ventrally, parallel-sided. Dorsal apex of frontal ridge merging with antennal calli. Frontal ridge in lateral view straight or slightly concave below antennal calli. Area laterad of frontal ridge below antennal socket concave. Anterofrontal ridge even, without denticles, relatively low, abruptly cut towards clypeus, gradually sloping dorsally, laterally slightly narrower than medially. Orbit narrower than transverse diameter of antennal socket. Supraorbital pore-bearing seta well-developed, situ- ated in deep, round or elongate impression. Vertex shiny, with sparse, small punctures. Eyes large, elongate; inner margins straight, nearly parallel. Sides of head below eyes converging ventrally. Labrum in males flat, without projections in middle, with 3 pairs of setae; anterior margin entire. Apical maxillary palpomere conical. Clypeus long or short, band-like. Antennae with 11 antennomeres, filiform. Antennomere 3 as long or longer than antennomere 2, much shorter than antennomere 4. Thorax: Pronotal surface glabrous, with 2 transverse, shallow, wide impressions in middle. Anterolateral callosity of pronotum poorly developed, short, slightly swollen, situated close to anterior margin. Sides of pronotum converging anteriorly from base to apex or from middle of pronotum (widest part) to apex. Pronotal margins without denticles, narrowly explanate, complete. Pronotal base straight or slightly concave in middle. Posterolateral setiferous pore situated away from posterior margin, protruding laterally beyond lateral margin. Procoxal cavities open. Intercoxal prosternal process narrow (procoxae subcontiguous), not extending beyond coxae posteriorly. Scutellum relatively long, broadly round at apex. Mesosternum narrow, abutting anterior projection of metasternum, without elevated projection in middle. Metasternum not projecting anteriorly, leaving mesosternum exposed. Disc of metasternum convex. Posterior end of metasternum slightly raised, with a pair of protuberances. Elytra: Convex in lateral view, broadest in apical 1/3. Elytral apex covering abdominal apex. Transverse impression of elytron posterior to humeral or basal callus shallow, barely perceptible. Epipleura outwardly oblique, wide at base of elytra, ending on level of first abdominal ventrite. Elytral surface glabrous, with confused punctation. Humeral calli well developed. Legs: Pro- and mesotibiae more or less cylindrical, slightly swollen around middle, without apical spurs. Apical part of meso- and metatibiae without obtuse tooth beyond middle. Metatibia straight in dorsal view, slightly curved in lateral view, cylindrical, entirely covered with setae except for wide bare stripe on dorsal surface; dorsal side with or without thin ridge. Metatibial spur absent. Metatibial apex as cylindrical as middle. Metatarsus attached to apex. Claw deeply bifid. Abdomen: Ventrites separate, about same length. First ventrite between coxae without longitudinal ridges. Spermatheca with receptacle and pump sharply separated. Receptacle globose. Vaginal palpi short. Median lobe of aedeagus in cross section nearly round, without distinct sculpture ventrally.

Figures

Figs. 1–3. Flea beetle habitus. 1) Burumoseria partita, illustration by Eleonore Dixon-Roche; 2) Licyllus splendidus Jacoby, illustration by Mary Metz; 3) Thrasychroma sp., illustration by Maayan Harel.

Figs. 4–11. 4) Erycibe henryi, host plant of Burumoseria yuae; 5) adult of B. yuae feeding on leaves of E. henryi; 6) B. yuae, dorsal view; 7) B. yuae, ventral view; 8) B. yuae, lateral view; 9) Burumoseria marginipennis, dorsal view; 10) B. marginipennis, ventral view; 11) B. marginipennis, lateral view.

Figs. 12–19. Diagnostic characters of Burumoseria species. 12) B. yuae, antenna; 13) B. yuae, median lobe of aedeagus, dorsal view; 14) B. yuae, median lobe of aedeagus, lateral view; 15) Burumoseria marginipennis, median lobe of aedeagus, dorsal view; 16) B. marginipennis, median lobe of aedeagus, lateral view; 17) B. yuae, vaginal palpi; 18) B. yuae, ventrite VIII; 19) B. yuae, spermatheca.