Jornandes tehuacanensis, Schaffner & Schwartz, 2008

Schaffner, JC & Schwartz, MD, 2008, Revision Of The Mexican Genera Ficinus Distant And Jornandes Distant With The Description Of 21 New Species (Heteroptera: Miridae: Orthotylinae: Orthotylini), Bulletin of the American Museum of Natural History 2008 (309), pp. 1-87: 72-75

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Jornandes tehuacanensis

new species

Jornandes tehuacanensis   , new species Figures 4, 10A, 19C, 34

HOLOTYPE: 3, MEXICO: Puebla: 6 mi SW of Tehuacan [18.3883 ° N 97.44836 ° W], August 9, 1980, Schaffner, Weaver, Friedlander, Taken on Desmanthus nervosus   (B. & R.) Rudd, det. Oswaldo Tellez, [19]’88. GoogleMaps  

00118193); scale 5 0.20 mm.

Deposited in the collection of the Instituto de Biología, Universidad Nacional Autónoma de Mexico, Mexico City, D.F.

DIAGNOSIS: Recognized by head, pronotum, and legs primarily yellowish brown, hemelytron and remainder of body dark fuscous to black; antennal segments pale, dark fuscous at apex, remaining segments dark fuscous (fig. 4); frons broadly rounded; vestiture of scutellum and corium rather evenly distributed with conspicuous short decumbent setae; vertex clearly wider than length of antennal segment I; labium reaching or almost reaching mesocoxa; width of pronotum greater than length of antennal segment II; metepisternum with microtrichia extending dorsal to evaporative area to varying degrees; genital segment of male without tergal process. Similar in coloration to J. nathani   , but distinguished by the coloration of antennal segment II. In J. tehuacanensis   segment II is dark fuscous or black basally and apically with a pale medial area. In J. nathani   the antennal segment II is pale. In J. nathani   the eye is larger in the male. The eye of J. tehuacanensis   is not sexually dimorphic. The male genitalia of J. tehuacanensis   are most similar to J. mimosae   .

DESCRIPTION: Male: COLORATION: Generally yellowish brown and dark fuscous to black. Head yellowish brown with clypeus and sometimes maxillary plate pale fuscous; antennal segment I pale, fuscous at apex, remaining segments dark fuscous to black; labium brown to fuscous. Pronotum yellowish brown; remainder of thorax including hemelytron dark fuscous to black. Legs usually yellowish brown with bases of trochanters, apices of tibiae, and all tarsomeres fuscous. Underside of abdomen dark fuscous to black. VESTITURE: Head, pronotum, sides of thorax with very sparse, scattered setae semierect to erect and about as long as diameter of antennal segment II; decumbent setae evenly distributed on scutellum and corium, not longer than width of antennal segment II; setae of varying lengths on underside of abdomen. GENITALIA (fig. 34): Genital segment without tergal processes, dorsal margin of aperture wellsclerotized, with dense bristlelike setae; ventroposterior margin of capsule with acute notch; distal width of subgenital plate narrow, dorsal margin of plate slightly projecting beyond aperture of capsule. Left paramere Cshaped in dorsal view; sensory lobe minimally produced, noted by long setae; diameter mostly evenly wide, narrowed subdistally, expanded to mitten-shaped apex. Right paramere shorter than left paramere, densely covered with long setae; diameter of paramere thick basally; sensory lobe broadly blunt, marginally crested with round-tipped tubercles, distal region of paramere relatively short, with blunt apex. Phallotheca rectangular, convoluted, equal to 2/3 length of spiculum; aperture small, restricted to narrow crescentshaped distal opening. Vesica with moderately long, convoluted spiculum; distal region consisting of serrate, needlelike branch on right side, flanked on left side by strongly serrate crest, base convoluted, situated on dorsal surface of hoselike part of ductus seminis, sclerotized distal region of ductus long, reaching to bifurcated portion of body of spiculum; base of spiculum without tubercle.

Female: Noticeably shorter than males, except for single specimen, antennal segment II with pale band near middle, otherwise similar in color and vestiture as on male. GENITALIA with ventral margin of VLP not produced ventrally into VUL; GP8 with tubercle projected immediately ventral to medial surface of subgenital plate (fig. 19C, arrow); SR relatively small ovoid along longitudinal axis; medial region of DLP well-sclerotized moderately large, somewhat quadrate; posterior wall with well-sclerotized, somewhat convex medial section, moderately elongate in vertical plane; IRL incised on ventral margin, both ventral and dorsal portions pointed, dorsal portion shorter than ventral portion; otherwise as in generic description.

MEASUREMENTS: Male (n 5 20; those of holotype given first followed in parentheses by average and range): Length, 3.32 (3.29, 3.10–3.40); width, 1.48 (1.45, 1.40–1.50). Head length, 0.16 (0.17, 0.14–0.20); width, 0.76 (0.76, 0.74–0.78); vertex width, 0.36 (0.36, 0.34–0.36). Length of antennal segment I, 0.20 (0.21, 0.20–0.22); II, 0.86 (0.87, 0.82–0.92); III, 0.62 (0.61, 0.58–0.66); IV, 0.30 (0.29, 0.26– 0.32). Pronotal length, 0.60 (0.58, 0.54–0.62); width across base, 1.20 (1.18, 1.12–1.22). Cuneal length, 0.60 (0.62, 0.58–0.66); width across base, 0.52 (0.52, 0.48–0.54).

Female (n 5 14; average given first followed in parentheses by range): Length, 2.84 (2.74–2.94); width, 1.49 (1.38–1.56). Head length, 0.19 (0.16–0.22); width, 0.76 (0.74–0.78); vertex width, 0.40 (0.38–0.42). Length of antennal segment I, 0.19 (0.18– 0.20); II, 0.70 (0.66–0.72); III, 0.53 (0.52– 0.54); IV, 0.28 (0.24–0.30). Pronotal length, 0.59 (0.56–0.60); width across base, 1.15 (1.08–1.18). Cuneal length, 0.48 (0.46–0.50); width across base, 0.53 (0.50–0.56).

DISCUSSION: The maxillary plate is variable in color, ranging from concolorous with the frons, to more commonly with a posterior dark spot near the eye, and occasionally completely fuscous. The dark maxillary plate pattern is shared with many other species within the genus. Antennal segments II–IV have some semierect setae that are about equal in length to the diameter of the segment.

Membrane of the hemelytron rarely with a few setae. The cuticular sculpturing is prominent. This species is most similar to J. nathani   . These similarities include general coloration as well as the characteristic vestiture of the scutellum and corium consisting of evenly distributed, short, decumbent setae. The male genitalia have features

similar to those seen in J. mimosae   but differ in fine structure of the vesical spiculum and right paramere. The female from Oaxaca was omitted from the paratype series because of a slightly longer antennal segment II than in the females from Puebla and its identification could not verified with reference to the male genitalia.

HOST PLANT: Desmanthus nervosus   (B. & R.) Rudd ( Fabaceae   : Mimosoideae   ).

ETYMOLOGY: Named after the city of Tehuacán, in the state of Puebla, near where this species is known to occur.

DISTRIBUTION: Known only from type locality in southern Puebla (fig. 10A).

PARATYPES: MEXICO: Puebla: 6 mi SW of Tehuacan, 18.3883 ° N 97.44836 ° W, 09 Aug 1980, Schaffner, Weaver, Friedlander, Desmanthus nervosus   (B. & R.) Rudd. (Fabaceae- Mimosaceae   ), 1♀ (AMNH_PBI 00185125) (AMNH). Desmanthus nervosus   (B. & R.) Rudd. (Fabaceae-Mimosaceae), 33 (AMNH_ PBI 00094279, AMNH_PBI 00118193, AMNH_PBI 00185110), 1♀ (AMNH_PBI 00119090) (CNC). Desmanthus nervosus   (B. & R.) Rudd. (Fabaceae-Mimosaceae), 213 (AMNH_PBI 00185097–AMNH_PBI 00185109, AMNH_PBI 00185111–AMNH_PBI 00185118), 8♀ (AMNH_PBI 00185119–AMNH_PBI 00185124, AMNH_PBI 00185126–AMNH_PBI 00185127) (TAMU); 08 Jul 1981, Bogar, Schaffner and Friedlander, Desmanthus nervosus   (B. & R.) Rudd. (Fabaceae-Mimosaceae), 13 (AMNH_ PBI 00119089) (AMNH). Desmanthus nervosus   (B. & R.) Rudd. (Fabaceae-Mimosaceae), 1♀ (AMNH_PBI 00094280) (CNC). Desmanthus nervosus   (B. & R.) Rudd. (Fabaceae-Mimosaceae), 33 (AMNH_PBI 00185233–AMNH_PBI 00185235), 2♀ (AMNH_PBI 00185236, AMNH_ PBI 00185237) (TAMU).

ADDITIONAL SPECIMEN: MEXICO: Oaxaca: Hwy 135, 9.3 km S of Santiago Dominguillo, 17.60788 ° N 96.93504 ° W, 1260 m, 20 Aug 1988, J. K. Liebherr and D. A. Yager, 1♀ (AMNH_PBI 00116234) (CUIC).