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 : 204-216

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).

Longitarsus marguzoricus Konstantinov , new species Figs. 5, 6 , 9 , 12, 14, 19, 20, 24, 28, 43­48 Description. Body slightly convex. Length 1.90–2.22 mm, width 0.96–1.10 mm. Color black with dark bronze reflection. Antenna and leg brown­ferru­

Figs. 10–12. Metatarsus of male. 10) Longitarsus asperifoliarum ; 11) Longitarsus hissaricus Lopatin ; 12) Longitarsus marguzoricus Konstantinov.

gineous, base of first antennomere and antennomeres 5–11 slightly darker. Metafemur black with bronze reflection. Pro­ and mesofemora dark brown, except apices which are dark yellow. Tibiae dark yellow. Vertex strongly shagreened, with well developed supraorbital puncture above orbital sulcus. Antennal callus poorly developed, as high as vertex, not delineated from vertex by grooves. Surface of antennal callus moderately shiny, lacks any sculpture. Midfrontal and suprafrontal sulci absent. Frontal ridge high and convex in

Figs. 17–22. Spermathecae. 17, 18) Longitarsus asperifoliarum Weise ; 19, 20) L. marguzoricus Konstantinov ; 21) L. violentoides Konstantinov ; 22) L. violentus Weise.

lateral view, moderately narrow, slightly wider posteriorly ( Fig. 5 ), but narrower than in L. violentus . Anterofrontal ridge attached to end of frontal ridge, in middle as high as frontal ridge, slightly thicker than frontal ridge. Second antennomere slightly longer than third, as long as fourth. Pronotum length/ width ratio 1.34 to 1.41, slightly wider basally. Lateral side convex, maximum width in front of middle. Anterolateral callosity well developed, slightly lower anteriorly, forming acute angle ( Fig. 6 ). Lateral margin narrowly explanated, forming oblique angle before middle, explanations wider apically. Posterolateral callosity low, and wide. Punctures, poorly defined, shallow, moderately large, 1.5 to 2 times larger than interspaces. Interspaces strongly shagreened. Scutellum widely rounded on top. Elytron with well developed humeral callus; maximum width behind middle. Apex almost flat with denticle ( Fig. 9 ). Punc­ tures as large or larger than punctures on pronotum, their diameter 1.5–2.0 times greater than distance between them. Interspaces minutely shagreened. Male metatibia slightly concave in dorsal view. First metatarsomere of male 1.04 times longer than rest of segments together. Second metatarsomere of male nearly as long as fourth and 2 times longer third. Metatibial spur as long as third metatarsomere. Tarsal claw thin, lacking denticle. Median lobe of aedeagus widening anteriorly with deep, wide ventral groove. Bottom of groove membranous, with several well developed longitudinal wrinkles. Apex widely rounded with moderately wide denticle ( Fig. 43, 45 ). Preapical abdominal tergite of female without long setae. Distal half of preapical abdominal tergite densely covered with short setae, basal half with few large pores ( Fig. 14 ). Apical abdominal tergite covered with long setae. Several microtrichia situated in middle of this tergite. Lateral corners of this tergite lack microtrichia ( Fig. 14 ). Receptacle of spermatheca (Figs. 19–20) longer than pump. Inner side of receptacle convex, outer side nearly straight. Vertical part of pump short, well delineated from receptacle and from horizontal part of pump. Spermathecal duct basally pointed in direction opposite to receptacle, forming almost no loop away from receptacle; apically making a few coils. Tignum slender, slightly curved, slightly acute posteriorly ( Fig. 24 ). Vaginal palpus slender, posteriorly straight, broadly rounded at apex ( Fig. 28 ). Apical sclerotization short, obtuse.

Variability. The median lobe of the aedeagus is a main source of species level characters in Longitarsus . It is considered to be a conservative structure with faint variability. However in L. marguzoricus it varies in the shape of the apex which sometimes is more narrow and has narrower denticle ( Figs. 43– 48 ).

Comments. It is possible that this species represents L. asperifoliarum var. defectus Jacobson (1893) however we were unable to find any specimens previously identified as this taxon. Jacobson described this variety as being small and without humeral calli. Longitarsus marguzoricus is larger than L. asperifoliarum and has well developed humeral calli. Longitarsus marguzoricus is similar to L. violentus Weise and L. violentoides sp. nov. It can be separated from L. violentoides by the few deep setiferous pores basally on the last ab­

39) L. asperifoliarum Weise ; 40–42) L. hissaricus Lopatin.

dominal tergite of female ( Figs. 14 ); spermathecal duct making almost no loop away from receptacle, apically forming 2 extremely similar coils (Figs. 19– 20); the apex of the median lobe of the aedeagus with wide but well developed denticle ( Figs. 43–48 ); and median lobe of the aedeagus longer, widening anteriorly. From L. violentus it can be separated by the larger median lobe, anteriorly widening and the absence of microtrichia on the lateral part of the apical abdominal tergite of female.

Type material. Holotype?: Tadzhikistan, Zeravshanskii mountain ridge, s. Padrut, Marguzorskie Lakes, 18.V.1991, leg. A. Konstantinov ( USNM) . Paratypes: the same labels as holotype (6?, 2 / AKPC), (6?, 2 / USNM), (1? ZMBU) , (2?, 5 / ZMAS) . Paratypes: the same labels as holotype except for the date (23.V.1991) (3?, 6 / AKPC), (4?, / USNM). Tadzhikistan , Zeravshanskii mountain ridge, Marguzorskie Lakes, Khurdak, 18–19. V . 1967, leg. I. Lopatin, (2?, 2 / USNM) .

Longitarsus tishechkini Konstantinov , new species Figs. 49­50

Description. Body slightly convex. Length 1.64–1.80 mm, width 0.84–0.88 mm. Color dark brown with bronze reflection. Antenna and leg brown­ferrugineous, base of first antennomere and antennomeres 5–11 slightly darker. Metafemur dark brown with bronze reflection. Bases of pro­ and mesofemora light brown. Rest of legs reddish brown. Vertex strongly shagreened, with well developed supraorbital puncture above orbital sulcus surrounded by smaller punctures. Antennal callus poorly developed, not as high as vertex, not delineated from vertex. Surface of antennal calli moderately shiny, lacking sculpture. Midfrontal and suprafrontal sulci absent. Suprafrontal sulcus shallow. Frontal ridge high, convex in lateral view, moderately narrow. Anterofrontal ridge attached to end of frontal ridge, in middle as high but thinner than frontal ridge between antennal sockets. Second antennomere longer than third, same length as fourth. Pronotum width/length ratio 1.27, slightly wider basally. Lateral side convex, maximum width nearly in middle. Anterolateral callosity well developed, slightly lower anteriorly. Lateral margin forms poorly developed, triangular denticle in front of middle, narrowly explanated, explanations wider apically. Posterolateral callosity poorly developed, low, wide. Punctures round, small, shallow, poorly defined, 1.5–2.0 times smaller than interspaces. Interspaces strongly shagreened. Scutellum widely rounded on top. Elytron with well developed humeral callus, maximum width behind middle. Apex broadly rounded. Punctures much larger than those on pronotum, their diameter 1.5– 2.0 times larger than distance between them. Interspaces shiny, minutely shagreened. Male metatibia slightly curved in dorsal view. First metatarsomere of male 0.96 times longer than rest of tarsomeres together. Second metatarsomere of male as long as fourth and 1.57 times longer third. Tarsal claw thin, lacking denticle. Metatibial spur two times shorter than third metatarsomere. Median lobe of aedeagus slightly constricted in middle, with deep, extremely wide ventral groove. Bottom of groove membranous, with several longitudinal wrinkles. Apex triangular with narrow denticle ( Fig. 49 ).

Female unknown.

Variability. The male paratype has elytra lighter than specimen the holotype.

Comments. Longitarsus tishechkini is most similar to L. asperifoliarum from which it can be distinguished by its smaller size, shorter metatibial spur, absence of the supracallinal sulci, and extremely wide ventral groove of the median lobe.

Type material. Holotype?: Kazakhstan, Zaili Alatau , 24.VIII.1989, leg. A. Tishechkin ( USNM) . Paratype: Kazakhstan , Aksu­Dzhabagly, Aksu river, 22. V .1990, leg. A. Konstantinov (? ZMAS) .

Longitarsus violentoides Konstantinov , new species Figs. 15 , 21, 25, 29, 51, 52

Description. Body slightly convex. Length 1.58 mm, width 0.78 mm. Color black with strong copper reflection. Antenna and leg brown­ferrugineous, first antennomere and antennomeres 6–11 slightly darker. Metafemur black with bronze reflection. Pro­ and mesofemora dark brown. Middle of tibiae brown. Vertex strongly shagreened, with single, well developed supraorbital puncture above orbital sulcus. Antennal callus poorly developed, not higher than vertex, not delineated from vertex by grooves. Surface of antennal callus moderately shiny, lacking sculpture. Midfrontal and suprafrontal sulci absent. Frontal ridge high and convex in lateral view, moderately narrow, but wider than in L. violentus . Anterofrontal ridge attached to end of frontal ridge, in middle as high and as thick as frontal ridge. Second antennomere slightly longer than third, as long as fourth. Pronotum length/width ratio 1.48, slightly wider basally. Lateral side convex, with maximum width in front of middle. Anterolateral callosity well developed, slightly lower anteriorly. Lateral margin nar­ rowly explanated, explanation wider apically. Posterolateral callosity poorly developed, low, wide. Punctures poorly defined, shallow, moderately small, 1.5 to 2.0 times smaller than interspaces. Interspaces covered with wrinkles. Scutellum widely rounded on top. Elytron with poorly developed humeral callus and maximum width behind middle. Apex broadly rounded. Punctures much larger than those on pronotum, their diameter 1.5–2 times larger than distance between punctures. Interspaces minutely shagreened. Male metatibia straight in dorsal view. First metatarsomere of male 1.10 times longer than rest of segments together. Second metatarsomere of male as long as fourth and 2 times as long as third. Metatibial spur smaller than third metatarsomere. Tarsal claw thin, lacking denticle. Median lobe of aedeagus parallel sided, with deep, wide ventral groove. Bottom of groove membranous, with several well developed longitudinal wrinkles. Apex widely rounded with moderately wide denticle ( Figs. 51–52 ). Preapical abdominal tergite of female with few moderately long setae. Distal half of preapical abdominal tergite sparsely covered with short setae; basal half without pores ( Fig. 15 ). Apical abdominal tergite covered with long setae. Microtrichia situated in middle ( Fig. 15 ). Receptacle of spermatheca (Fig. 21) only slightly longer than pump. Inner side of receptacle convex, outer side nearly straight. Vertical part of pump short, well delineated from receptacle and from horizontal part of pump. Spermathecal duct basally directed opposite to receptacle making almost no loop away from receptacle, apically forming 2 extremely similar coils. Tignum slender, straight, pointed posteriorly ( Fig. 25 ). Vaginal palpus slender, posteriorly slightly curved medially, broadly rounded at apex ( Fig. 29 ). Apical sclerotization obtuse.

Variability. Some specimens have the vertex less shagreened than others.

Comments. Longitarsus violentoides is most similar to L. violentus . It can be separated by smaller body size; pronotal punctures 1.5–2.0 times smaller than interspaces; poorly developed humeral callus; elytral punctures much larg­ er than pronotal punctures, their diameter 1.5–2.0 times larger than distance between them; male metatibia straight in dorsal view; median lobe of aedeagus more robust with widely rounded apex; spermathecal duct pointed in the direction opposite to receptacle, making 2 nearly identical coils; and lateral parts of the apical abdominal tergite of female lacks of microtrichia.

Type Material. Holotype?: Armenia, Tsahkadzor , alpine meadow, 2500– 3200 m, 22.V.1988, leg. A. Konstantinov ( USNM) . Paratypes: The same data as holotype (? AKPC), (/ ZMAS), (/ USNM) , (/ IZEA) .

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. 31–42. Median lobe of aedeagus. 31, 32) Longitarsus afghanicus Lopatin; 33–

Figs. 5, 6. Longitarsus marguzoricus Konstantinov. 5) head, frontal view; 6) pronotum.

Figs. 43–52. Median lobe of aedeagus. 43–48) Longitarsus marguzoricus Konstantinov; 49, 50) L. tishechkini Konstantinov; 51, 52) L. violentoides Konstantinov.

Figs. 13–16. Last abdominal tergites of female. 13) Longitarsus asperifoliarum Weise; 14) L. marguzoricus Konstantinov; 15) L. violentoides Konstantinov; 16) L. violentus Weise.

Figs. 23–26. Tignum (8th abdominal sternite of female). 23) Longitarsus asperifoliarum Weise; 24) L. marguzoricus Konstantinov; 25) L. violentoides Konstantinov; 26) L. violentus Weise.

Figs. 27–30. Vaginal palpi. 27) Longitarsus asperifoliarum Weise; 28) L. marguzoricus Konstantinov; 29) L. violentoides Konstantinov; 30) L. violentus Weise.