Chrysina baileyana Monzón, 2010

Sierra, José Monzón, 2010, Three new species of Chrysina Kirby (Coleoptera: Scarabaeidae; Rutelinae) from Guatemala and Mexico, Insecta Mundi 2010 (143), pp. 1-12 : 7-10

Chrysina baileyana Monzón , new species

( Figure 5, 6 , 17 , 26 , 31 , 35 )

Type material. Holotype male ( UVGC) labeled “ Guatemala, Huehuetenango, Huehuetenango, Ruinas de Zaculeu. 1870 m., 16 JUNIO 1993, 15.332394 -91.492040, Col. José Monzón S. ” . Allotype female ( UVGC) labeled as holotype . Paratypes 115 (78 males and 35 females) with data as follows: Same data as holotype (3 males and 2 females) ; same data except “ 29 MAYO 1992 ” (2 males); same data except “Ciudad. 1900 m., 20 MAYO 1990, 15.321393 -91.49204, Col. I. Ovalle ” (1 male); same data except “ 10 JUNIO 2001, Col. José Monzón S. ” (1 male); same data except “Hotel Cuchumatanes. 1930 m., 28 JUNIO 2008, 15.308034 -91.458406, Col. David Robacker ” (1 male and 1 female); same data except “Chibacabé. 1890 m., 6 JUNIO 1997, 15.313288 -91.546911, Col. L. Estrada ” (3 males and 1 female); same data except “ 26 JULIO 2000, Col. Enio B. Cano ” (3 males); same data except “ 7 JUNIO 1997, Col. J. Schuster ” (2 males and 1 female); same data except “Chiantla, Turicentro El Valle. 2000 m., 10 JULIO 1995, 15.343155 -91.433485, Col. Enio B. Cano. ” (1 female); same data except “ 4 JULIO 2000, Col. José Monzón S. ” (16 males and 1 female); same data except “ 5 MAYO 2005, Col. Monzón y Goemans” (6 males); same data except “Camino a Aguacatán. 2220 m., 30 MAYO 2000, 15.352216 -91.396553, Col. José Monzón S. ” (4 males); same data except “Buenos Aires. 1980 m., 20 MAYO 2003, 15.347968 -91.453499, Col. José Monzón S. ” (5 males and 2 females); same data except “ 26 MAYO 2004 ” (7 males and 6 females); same data except “ 1 JUNIO 2004 ” (4 males); same data except “ Aldea Chiaque, Malacatancito, 8 km de CA-1, 2035 msnm., 20-25 Abril 2010, 15.169699 -91.500115, Colector Don Fabian Pérez ” (10 males and 10 females) ; same data except “ 10-15 Mayo 2010 ” (10 males and 10 females) . Paratypes deposited in the UVGC, FSCA, WSUC and the private collections of D. Robacker (Texas, U.S. A), William B. Warner (Arizona, U.S.A.), Howard Romack (New York, U.S.A.), Maishe Dickman (Connecticut, U.S.A.), Thierry Porion ( France) and José Monzón ( Guatemala).

Description. Holotype male. Length 34.0 mm; width at elytral humeri 16.5 mm; maximum width (middle of elytra) 18.5 mm. Dorsal surface of head, pronotum, and elytra bright yellowish green; lateral sides of clypeus yellowish; antennal club dark brown with bluish hues, scape and first segment dorsally green; pronotal margins and scutellum golden green; ultimate and penultimate abdominal tergites iridescent reddish orange; pygidium same slightly darker with apical margin reddish gold. Color of venter mostly yellowish green; labium and ventral surface of mandibles reddish orange; trochanter reddish orange; internal surface of tibiae and femora reddish orange, external surfaces green with reddish orange margins; abdominal sternites shiny reddish orange; tarsi light blue; mesometasternal protrusion gold. Clypeus ( Fig. 17 ) free margins semicircular in dorsal view, slightly reflexed; surface with fine punctures; interocular distance 2.0 times wider than antennal club length. Mentum ( Fig. 26 ) quadrate; anterior depression divided in two wide segments; lateral depressions faint; posterior margin widely sinuate; surface punctate, punctures medium and widely scattered. Pronotum at base 2.3 times as wide as interocular distance; sculpture similar to frons. Lateral margin completely beaded, slightly effaced between inner border of eyes and in front of scutellum. Elytra smooth, striae with sparse and fine punctures. Intervals weakly convex. Elytron 25.0 mm long and 1.8 times as long as pronotum; lateral margin completely beaded. Pygidium finely punctate with 2 or 3 rows of sparse, fine, pale long setae along external margin; surface moderately convex and prominent before apex. Fifth and apical sternite with depression. Venter with mesometasternal protrusion short, blunt and rounded, slightly depressed. Metasternum expanded (maximum height at coxa 15.0 mm), punctate, setae dense, long and pale. Legs with protibia tridentate, apical teeth long curved, second one obvious and third one small. Metatrochanter apex protruding beyond metafemoral margin; hind femora enlarged and widened (5.5 mm maximum width); apical spine moderately produced; hind tibia elongated and recurved. Genitalia dark brown with parameres symmetrical, apically constricted and recurved, fused except for narrowly bidentate apex; length of genital capsule 9.5 mm ( Fig. 31 ).

Allotype female. Similar to male except as follows: length 36.0 mm; width at elytral humeri 17.0 mm; maximum width 21.0 mm (at epipleural fold); interocular distance 2.4 times wider than antennal length; pronotum at base 5.8 times as wide as interocular distance; body more convex; tarsi less robust; clypeus semiparabolic; epipleural fold wide, terminating in sulcus; hind tibia not curved; apical sternite not depressed. Genital plates simple ( Fig. 35 ) slightly asymmetrical, left one with basal indentation; setae long, pale and sparse along apical margin.

Variation. Males length 27.0 to 38.0 mm; width at elytral humeri 14.0 to 18.5 mm; maximum width (middle of elytra) 15.0 to 22.0 mm. Females length 30.0 to 37.0 mm; width at elytral humeri 14.5 to 18.0 mm; maximum width (epipleural fold) 18.0 to 22.5 mm. Color in the type series is homogeneous in general except in the intensity of the reddish orange in general and the light blue tarsi vary in intensity. Two males have irregular blue spots on elytra and pronotum.

Etymology. I am proud to name this species for my loving wife Anna Cristina Bailey whose support is invaluable for my field work.

Diagnosis. In Guatemala and Chiapas there are four other species in the same Macropus complex (sensu Hawks 2001) as Chrysina baileyana . Chrysina karschi Nonfried , C. prototelica (Morón and Howden) and C. halffteri (Morón) can be easily distinguished by not having the metatrochanter apex protruding beyond the metafemoral margin. Although C. prototelica might sometimes have some pinkish red in some parts (specially femora and tibiae), these three species never have the reddish orange coloration in the venter and legs. Chrysina halffteri is the easiest to separate because of its different genital shape and purplish venter. Chrysina triumphalis Morón has a similar color pattern but has steel blue tarsi compared to light blue and is a much more robust species.

Distribution and remarks. Chrysina baileyana is currently known to inhabit pine and oak forests around the city of Huehuetenango and the town of Chiantla in the department of Huehuetenango ( Guatemala) at elevations between 1870 and 2220 meters above sea level. It has been found flying during the months from April to July as follows: April 20 specimens, May 53 specimens, June 21 specimens and July 21 specimens. The Macropus species complex (sensu Hawks 2001) in Guatemala is complicated; there are various populations in different localities. More collecting and research is needed in the western part of Huehuetenango department, where at least three populations of Chrysina in this group occurs. Other places of importance to work are the volcanic chain and cloud forests of Baja Verapáz.

Figures

Figure 1-12. Dorsal and ventral habitus of adult Chrysina specimens. 1-2) C. giesberti male paratype from Cerro Cruz Maltín, Huehuetenango. 3-4) C. hawksi male paratype from Bulej, Huehuetenango. 5-6) C. baileyana male paratype from Chiantla, Huehuetenango. 7-8) C. centralis female from La Fraternidad, San Marcos. 9-10) C. guatemalensis female from Bojonal, San Marcos. 11-12) C. tecunumani female from Cerro Pinalón, El Progreso.

Figure 13-20. Clypeus of Chrysina spp. 13) C. giesberti. 14) C. hawksi. 15) C. pehlkei male from Cerro Alúx, Sacatepéquez. 16) C. centralis. 17) C. baileyana. 18) C. triumphalis from Bojonal, San Marcos. 19) C. guatemalensis. 20) C. tecunumani. Length of line 7 mm.

Figure 21-28. Mentum of Chrysina spp. 21) C. giesberti. 22) C. hawksi. 23) C. pehlkei. 24) C. centralis. 25) C. guatemalensis. 26) C. baileyana. 27) C. triumphalis. 28) C. tecunumani. Length of line 4 mm.

Figure 29-31. Male genital capsule of Chrysina spp. 29) C. giesberti. 30) C. hawksi. 31) C. baileyana. Length of line 4 mm.

Figure 32-38. Female inferior genital plates of Chrysina spp. 32) C. giesberti. 33) C. hawksi. 34) C. pehlkei. 35) C. baileyana. 36) C. centralis. 37) C. guatemalensis. 38) C. tecunumani. Length of line 2.5 mm.