Leptoglossus impensus, Brailovsky, Harry, 2014

Brailovsky, Harry, 2014, Illustrated key for identification of the species included in the genus Leptoglossus (Hemiptera: Heteroptera: Coreidae: Coreinae: Anisoscelini), and descriptions of five new species and new synonyms, Zootaxa 3794 (1), pp. 143-178 : 148-149

publication ID	https://doi.org/ 10.11646/zootaxa.3794.1.7
publication LSID	lsid:zoobank.org:pub:765E7F1F-4FF1-4CBA-8010-51E76B481300
DOI	https://doi.org/10.5281/zenodo.6125461
persistent identifier	https://treatment.plazi.org/id/03CFDF4B-DB21-D829-FF16-FD39A860FB76
treatment provided by	Plazi
scientific name	Leptoglossus impensus
status	sp. nov.

Treatment

Leptoglossus impensus View in CoL sp. nov.

( Figs. 3 View FIGURES 1 – 5 , 8 View FIGURES 6 – 10 , 12 View FIGURES 11 – 15 , 50 View FIGURES 48 – 51 )

Description. Holotype male. Dorsal color. Head black with three narrow dark orange stripes, one on midline, other two between eye-ocelli and extending from antenniferous tubercles until posterior third of neck; antennal segment I pale reddish orange with short black stripe located dorsally and almost reaching anterior third of segment; segments II and III pale reddish orange, IV pale yellowish orange; pronotal disk with a yellowish rectangular transverse band not reaching lateral margins; collar, calli, humeral areas, and posterior margin chestnut orange to dark reddish brown; scutellum black with apex yellow; clavus yellow with punctures pale reddish brown; corium yellow with costal margin, apical margin, corial veins and posterior third pale reddish orange; yellowish transverse fascia on corium irregular, difficult to see and not reaching costal margin; hemelytral membrane bronzy brown; connexival segments III to VI pale reddish brown with anterior margin yellow, and VII pale reddish brown with anterior and posterior third yellow; dorsal abdominal segments black; intersegmental area V–VI yellow. Ventral color. Pale yellowish orange with numerous black discoidal spots; midline of head black; rostral segments yellow (apex of IV black); fore and middle coxae yellow with brown marks, hind coxae black with yellow longitudinal stripe; trochantes yellow; fore and middle femora pale reddish orange with black spines; hind femora pale reddish orange with spines and posterior half of dorsal surface black; fore and middle tibiae pale yellowish orange; hind tibiae with outer dilations dark reddish brown, inner dilations dark reddish brown with pale yellow irregular marks, undilated portion dark yellowish orange; tarsi yellowish orange. Structure. Head longer than wide, shorter than maximum length of pronotum; tylus blunt, slightly exceeding juga; antennal segment I shorter or subequal to III, IV longest, II longer than III; rostrum reaching anterior third of abdominal sternite III; rostral segment I shorter than maximum length of antennal segment I; rostral segment I longest, III shortest, and II longer than IV. Thorax. Pronotum wider than long; anterolateral borders entire; posterolateral borders serrate; humeral angles broadly expanded, subacute; calli uniformly elevated; raised area between calli with two small circular pits; anterior lobe behind calli with low median fovea ( Fig. 3 View FIGURES 1 – 5 ). Hind tibiae: Outer dilations phylliform, at least with two deep emarginations, occupying 58 % of maximum length of tibiae; inner dilations shorter, lanceolate, occupying 43 % of maximum length of tibiae ( Fig. 8 View FIGURES 6 – 10 ). Genital capsule. Posteroventral edge deeply concave, straight at midline; prongs absent ( Fig. 12 View FIGURES 11 – 15 ).

Integument. Body surface dull. Head, anterior lobe of pronotal disk including the calli, thorax, legs, and abdominal sterna densely clothed with erect, silvery pubescence; posterior lobe of pronotal disk, clavus, and corium sparsely clothed with short bristle-like setae; antennal segment I densely clothed with long, erect, silvery bristle-like setae, segments II and III sparsely clothed with short, erect, bristle-like setae, IV with tiny setae; pronotal disk, clavus and corium strongly punctate; scutellar disk transversely striate and scattered punctate; collar, calli, thorax, abdominal sterna, male genital capsule and female genital plates almost impunctate.

Measurements (mm). Length head 2.41, width across eyes 2.10, interocular space 1.17, interocellar space 0.63, preocular distance 1.49; length antennal segments I, 2.35, II, 3.16, III, 2.41, IV, 4.03; length rostral segments I, 2.23, II, 2.17, III, 1.24, IV, 2.01. Length pronotum 3.10, width across humeral angles 5.14. Hind tibiae. Total length 8.10; length outer dilation 4.70; length inner dilation 3.50. Scutellar length 1.98, width 1.98. Total body length 15.90.

Female. Habitus and color similar to male holotype. Clavus and corium entirely yellow. Hind tibiae: Outer dilations phylliform, at least with two deep emarginations, occupying 66 % of maximum length of tibiae; inner dialtions shorter, lanceolate, occupying 48 % of maximum length of tibiae.

Measurements (mm). Length head 2.85, width across eyes 2.41, interocular space 1.30, interocellar space 0.68, preocular distance 1.67; length antennal segments I, 2.79, II, 4.27, III, 2.79, IV, 4.53; length rostral segments I, 2.66, II, 2.38, III, 1.33, IV, 2.13. Length pronotum 3.96, width across humeral angles 7.14. Hind tibiae. Total length 10.00; length outer dilation 6.60; length inner dilation 4.81. Scutellar length 2.72, width 2.84. Total body length 19.80.

Variation. 1, yellowish transverse fascia on corium irregular, clearly present and not reaches costal margins. 2, corium reddish orange, punctures dark reddish brown, and corial veins and posterior third of apical margin yellow. 3, corium reddish orange, punctures dark reddish brown, and corial veins and endocorium mostly yellow.

Type material. Holotype, male, Bolivia, Chulumani, Sur Yungas, I-1948, leg. Williner ( MABR). Paratypes, 2 males, 3 females, Bolivia, Chulumani, Sur Yungas, I-1948, leg. Bridarolli ( MABR, UNAM).

Etymology. From the Latin, impensus , for large, referring to the stature of the insect.

Distribution. Bolivia.

Diagnosis. Related to L. jacquelinae Brailovsky by having the thorax and abdominal sterna with numerous small black dots, without contrasting yellowish spots or yellowsih stripes, anterolateral borders of pronotum entire, dorsal abdominal segments without median pale yellowish longitudinal fascia, hind tibiae with outer dilations phylliform occupying 58 % or less of maximum length of tibiae, pronotum with strongly contrasting yellowish areas, and antennal segment I bicolorous, pale reddish orange with short and difficult to see black stripe located dorsally and almost reaching the anterior third of segment. In L. jacquelinae recorded from Mexico the clavus is dark brown with vein yellow, antennal segment II robust, shorter than 3.90, hind tibiae with outer dilations scarsely expanded, occupying 50 to 55 % of the maximum length of tibiae and calli black. Leptoglossus impensus sp. nov., described from Bolivia, has the clavus entirely yellow, antennal segment II slender, longer than 4.30, hind tibiae with outer dilations conspicuously expanded, occupying 58 to 62 % of maximum length of tibiae and calli dark reddish brown to pale chestnut orange.