Jornandes crotoni, 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 : 36-38

Jornandes crotoni new species Figures 2, 10B, 16

HOLOTYPE: 3, MEXICO: Oaxaca: 2.7 mi NW of El Cameron [16.59606 ° N 96.03866 ° W, 787 m], July 14, 1971, Clark, Murray, Hart , Schaffner ( AMNH _ PBI 00184921 ). Deposited in the collection of the Instituto de Biología , Universidad Nacional Autónoma de Mexico, Mexico City, D.F.

DIAGNOSIS: Recognized by small size; general coloration brown to yellowish brown with hemelytron brown to dark fuscous; thorax and most of head yellowish brown; antennal segment I pale with reddish to fuscous spot near apex, II–IV pale with apex dark fuscous; legs pale (fig. 2); vertex wider than length of antennal segment I; labium reaching or nearly reaching metacoxa; width of pronotum greater than length of antennal segment II; glabrous with only a few scattered setae on pronotum and hemelytron; corium weakly hyaline, embolium clearly demarcated; metepisternum dorsal to evaporative area of scent gland with microtrichia; genital segment of male without tergal process.

DESCRIPTION: Male: COLORATION: Generally brown or yellowish brown with hemelytron and scutellum ranging from pale brown to dark fuscous. Head pale brown with maxillary plate reddish or brownish orange, apical half of clypeus dark fuscous or sometimes red; antennal segment I pale with red or fuscous tinged with red spot near apex, remaining segments pale basally, dark fuscous apically; labium generally pale with apex dark fuscous. Pronotum pale brown or yellowish brown often with reddish coloration, posterior margin pale; mesopleuron pale brown, sternum usually darker; metapleuron pale brown or brown, sometimes with pleuron including evaporative area pale fuscous. Mesoscutum and scutellum brown to dark fuscous. Corium yellowish brown to fuscous or dark fuscous, base of corium yellowish brown, membrane dark fuscous. Legs pale, femora frequently with reddish longitudinal line. Abdomen ranging from pale brown to brown with fuscous areas. VESTITURE: Head and thorax, except for appendages, shining, almost devoid of setae; scutellum and corium with very short, sparse decumbent setae most easily seen on embolium; setae on antennal segments II–IV decumbent, length not longer than diameter of respective segments; semierect setae of tibiae as long or slightly longer than diameter of respective tibia; decumbent setae of abdomen long and more dense. GENITA- LIA (fig. 16): Genital segment without tergal processes on dorsal margin of aperture; ventroposterior margin of capsule with acute notch, subgenital plate narrow distally, slightly projecting beyond aperture of capsule. Left paramere C-shaped in dorsal view; sensory lobe not produced, diameter of paramere with roughly equal thickness throughout, slightly narrowed subapically to mitten- shaped apex. Right paramere similar in size to left paramere; sensory lobe sharply pointed dorsally; diameter of paramere equally thick distal to sensory lobe, terminating in small apical point. Phallotheca small, cone shaped, as long as vesical spiculum; aperture sinuate, open from right side to just left of apex. Vesica small; spiculum narrow, sinuate, thickened medially; base situated on dorsal surface of ductus seminis, without basal process; distal region narrow serrate at base of bifurcate, strongly recurved apex, branches of recurved region smooth reaching to middle of spiculum trunk.

Female: Color and vestiture same as for male.

MEASUREMENTS: Male (n 5 20; those of holotype given first followed in parentheses by average and range): Length, 2.80 (2.68, 2.40–2.94); width, 1.32 (1.35, 1.28–1.44). Head length, 0.14 (0.16, 0.14–0.20); width, 0.70 (0.70, 0.68–0.72); vertex width, 0.34 (0.33, 0.32–0.34). Length of antennal segment I, 0.20 (0.20, 0.18–0.22); II, 0.72 (0.74, 0.66– 0.80); III, 0.54 (0.56, 0.50–0.62); IV, 0.28 (0.31, 0.28–0.34). Pronotal length, 0.56 (0.59, 0.50–0.66); width across base, 1.08 (1.10, 1.02– 1.16). Cuneal length, 0.50 (0.50, 0.48–0.52); width across base, 0.48 (0.48, 0.44–0.50).

Female (n 5 20; average given first followed in parentheses by range): Length, 2.91 (2.66–3.10); width, 1.45 (1.30–1.56). Head length, 0.18 (0.14–0.24); width, 0.72 (0.68–0.74); vertex width, 0.36 (0.34–0.36). Length of antennal segment I, 0.20 (0.18– 0.22); II, 0.78 (0.70–0.84); III, 0.55 (0.52– 0.62); IV, 0.32 (0.28–0.36). Pronotal length, 0.61 (0.50–0.66); width across base, 1.15 (1.02–1.24). Cuneal length, 0.50 (0.48–0.52); width across base, 0.49 (0.44–0.56).

DISCUSSION: J. crotoni is one of the smallest species of the genus. The coloration

of antennal segments II–IV, in which the bases of all segments are pale and the apices are a contrasting dark fuscous, distinguishes this species from all others. The maxillary plate of most specimens is tinted red instead of fuscous. The color of the hemelytra is variable, but the base of the corium is pale, similar to that of J. nathani . The color variation of the corium necessitated this species exit the key in two places. The specimens having the paler corium are frequently teneral. The sculpturing is easily seen and a few individuals have setae on the membrane of the hemelytron.

HOST PLANT: Croton alamosanus Rose (Euphorbiaceae) .

ETYMOLOGY: Named after the plant genus from which individuals of this species have been taken.

DISTRIBUTION: Known from five localities in south-central Oaxaca northward to southern Puebla (fig. 10B).

PARATYPES: MEXICO: Oaxaca: 10 mi E of Totolapan , 16.66661 ° N 96.1482 ° W, 1219 m, 20 Jul 1987, Kovarik and Schaffner, 23 ( AMNH _ PBI 00118210 , AMNH _ PBI 00119085 ), 1♀ ( AMNH _ PBI 00119086 ) ( CNC). 93 ( AMNH _ PBI 00106537 – AMNH _ PBI 00106545 ), 16♀ ( AMNH _ PBI 00106546 – AMNH _ PBI 00106561 ) ( TAMU). 2.1 mi NW of Totolapan, 16.68826 ° N 96.32254 ° W, 11 Jul 1981 – 17 Jul 1981, Bogar, Schaffner and Friedlander, Croton alamosanus Rose (Euphorbiaceae) , det. Oswaldo Tellez 1990, 1♀ ( AMNH _ PBI 00094276 ) ( CNC). Croton alamosanus Rose (Euphorbiaceae) , det. Oswaldo Tellez 1990, 1♀ ( AMNH _ PBI 00094275 ), 4♀ ( AMNH _ PBI 00245160 – AMNH _ PBI 00245163 ) Croton alamosanus Rose (Euphorbiaceae) , det. Oswaldo Tellez 1990. 83 ( AMNH _ PBI 00106518 – AMNH _ PBI 00106525 ), 11♀ ( AMNH _ PBI 00106526 – AMNH _ PBI 00106536 ) ( TAMU). 2.7 mi NW of El Camaron, 16.59606 ° N 96.03866 ° W, 787 m, 21 Jul 1974 – 22 Jul 1974, Clark, Murray, Ashe, Schaffner, 13 ( AMNH _ PBI 00094274 ) ( AMNH). 53 ( AMNH _ PBI 00106504 – AMNH _ PBI 00106508 ), 8♀ ( AMNH _ PBI 00106509 – AMNH _ PBI 00106516 ) ( TAMU) ; 24 Jul 1973, Mastro and Schaffner, Light Trap, 1♀ ( AMNH _ PBI 00106517 ) ( TAMU) ; 14 Jul 1971, Clark, Murray, Hart, Schaffner, 13 ( AMNH _ PBI 00094273 ), 1♀ ( AMNH _ PBI 00106488 ) ( AMNH). 13 ( AMNH _ PBI 00094272 ) ( CNC). 163 ( AMNH _ PBI 00106472 – AMNH _ PBI 00106485 , AMNH_PBI 00106501– AMNH _ PBI 00106502 ), 14♀ ( AMNH _ PBI 00106486 – AMNH _ PBI 00106487 , AMNH_PBI 00106489– AMNH _ PBI 00106500 ) ( TAMU) ; 13 Jul 1971, Clark, Murray, Hart, Schaffner, Light Trap, 13 ( AMNH _ PBI 00106503 ) ( TAMU). 8 mi E of Totolapan , 16.66663 ° N 96.17856 ° W, 19 Jul 1987, Kovarik and Schaffner, 13 ( AMNH _ PBI 00106468 ), 2♀ ( AMNH _ PBI 00106469 , AMNH _ PBI 00106470 ) ( TAMU) . Puebla: 13.7 mi SW of Izucar de Matamoros , 18.50612 ° N 98.63298 ° W, 1080 m, 21 Jul 1981, Bogar, Schaffner and Friedlander, 1♀ ( AMNH _ PBI 00106471 ) ( TAMU) .