Longitarsus hissaricus Lopatin

Konstantinov, Alexander S. & Lopatin, Igor K., 2000, Review Of The Longitarsus Asperifoliarum Group Of Species (Coleoptera: Chrysomelidae: Alticinae), The Coleopterists Bulletin 54 (2), pp. 200-220 : 204-206

Longitarsus hissaricus Lopatin , new species

Figs. 3, 4 , 8, 11 , 40–42

Description. Body slightly convex. Length 1.90–2.04 mm, width 0.96–1.03 mm. Color dark brown with strong bronze reflection. Antenna and leg brownferrugineous, antennomeres 5–11 slightly darker. Metafemur dark brown with bronze reflection. Apices of pro­ and mesofemora light brown. Rest of legs reddish brown. Vertex strongly shagreened, with well developed supraorbital puncture above orbital sulcus, surrounded by deep punctures. Antennal callus poorly developed, not higher than vertex, not delineated from vertex. Surface of antennal calli moderately shiny, lacking sculpture. Midfrontal and suprafrontal sulci absent. Frontal ridge high and convex in lateral view, moderately narrow. Anterofrontal ridge attached to end of frontal ridge, in middle as high and thick as frontal ridge ( Fig. 3 ). Second antennomere slightly longer than third, as long as fourth. Pronotum width/length ratio 1.36, slightly wider basally. Lateral side convex, with oblique denticle, maximum width nearly in middle. Anterolateral callosity well developed, slightly lower anteriorly. Lateral margin narrowly explanated, explanations wider apically. Posterolateral callosity low, wide. Punctures elongate, deep, poorly defined, 1.5–2.0 times as large as interspaces. Interspaces covered with small, longitudinal wrinkles ( Fig. 4 ). Scutellum widely rounded on top. Elytron usually with poorly developed humeral callus; maximum width behind middle. Apex broadly rounded with well developed denticle ( Fig. 8 ). Punctures as large or slightly larger than those on pronotum, their diameter slightly less than interpunctal distance. Interspaces minutely shagreened. Male metatibia curved in dorsal view. First metatarsomere of male 1.18 times longer than rest of tarsomeres together. Second metatarsomere of male 1.18 times longer than fourth and 1.85 times longer than third. Tarsal claw thin, lacking denticle. Metatibial spur as long as third metatarsomere. Median lobe of aedeagus slightly constricted in front of middle with deep, wide ventral groove. Bottom of groove membranous, with several well developed longitudinal wrinkles. Basal part of median lobe with nearly longitudinal wrinkles laterally. Apex triangular with poorly developed denticle ( Figs. 40–42 ).

Female unknown.

Variability. Specimens from Senglok mountain ridge in Tadzhikistan have elytral punctures as large or larger than interspaces.

Host Plants. Eremostachys labiosa ( Lopatin 1977, 1984).

Comments. Longitarsus hissaricus is most similar to L. asperifoliarum . It was included in Lopatin’s Chrysomelidae of Middle Asia and Kazakhstan (1977) as L. asperifoliarum . Longitarsus hissaricus can be distinguished from L. asperifoliarum by the elytral apex being broadly rounded with a well developed angle ( Fig. 8 ), metatibial spur as long as third metatarsomere, and the median lobe of aedeagus with the apex forming almost no denticle and the lateral sides nearly straight ( Figs. 40–42 ).

Type Material. Holotype?: Tadzhikistan, Hissar mountain ridge, Zimchurud, 1300 m, 31.III.1957, leg. I. Lopatin, feeding on Eremostachys labiosa ( ZMAS). Paratypes: the same labels as holotype (2? ILPC); Tadzhikistan, Kondara , 2000 m, 8.VII.1955, leg. I. Lopatin (? ILPC); Takob , 1700 m, 3.V.1986, leg. I. Lopatin (? ILPC); Vahsh mountain ridge, near Childara, 12.V.1988, leg. I. Lopatin (? ILPC); Senglok mountain ridge, 2000 m, 6.V.1991, leg. A. Konstantinov (3? AKPC, 3? USNM); Hissar mountain ridge, Dzhavani, 12.V.1991, leg. A. Konstantinov (3? USNM); Hissar mountain ridge, Hodzha­Obigarm, 2500 m, 11.V.1991, leg. A. Konstantinov (3? AKPC, 3? USNM); Afghanistan, V.1967, leg. Umarov (? AKPC).

Figures

Figs. 3, 4. Longitarsus hissaricus Lopatin. 3) head, frontal view; 4) pronotum.

Figs. 7–9. Elytral apex. 7) Longitarsus asperifoliarum; 8) Longitarsus hissaricus Lopatin; 9) Longitarsus marguzoricus Konstantinov. Figs. 10–12. Metatarsus of male. 10) Longitarsus asperifoliarum; 11) Longitarsus hissaricus Lopatin; 12) Longitarsus marguzoricus Konstantinov.

Figs. 31–42. Median lobe of aedeagus. 31, 32) Longitarsus afghanicus Lopatin; 33– 39) L. asperifoliarum Weise; 40–42) L. hissaricus Lopatin.