Chrysina tecunumani (Cano and Morón, 1995)

Sierra, José Monzón, 2010, Three new species of Chrysina Kirby (Coleoptera: Scarabaeidae; Rutelinae) from Guatemala and Mexico, Insecta Mundi 2010 (143), pp. 1-12 : 11-12

Chrysina tecunumani (Cano and Morón, 1995)

( Figure 11, 12 , 20 , 28 , 38 )

Female description. Length 28.8 mm; width at elytral humeri 14.0 mm; maximum width (middle of elytra) 15.0 mm. Color of dorsum shiny yellowish green; anterior and lateral margins of clypeus including ocular canthi yellow; antennal club brown, antennal segments dark brown except half of first and scape with iridescent yellowish brown; pronotal margins yellow, lateral and anterior margins reddish; scutellum yellowish green with margins reddish yellow; elytral margins reddish yellow and striae yellowish green; pygidium darker green. Color of venter mostly darker green with some yellow reflections; labium and ventral surface of mandibles greenish gold; trochanter, coxae and legs green with yellow and golden reflections, external side of tibia and apical femora pinkish brown; tarsi golden green; mesometasternal protrusion gold. Clypeus ( Fig. 20 ) free margins semiparabolic in dorsal view, free margins slightly reflexed; surface with fine moderately sparse punctures; interocular distance 2.0 times wider than antennal club length. Mentum ( Fig. 28 ) subquadrate; anterior depression wider and irregular; lateral depressions wide; posterior depression long and deep; surface with scattered setigerous punctures. Pronotum at base 2.2 times as wide as interocular distance; sculpture similar to frons. Lateral margin completely beaded, effaced between inner border of eyes and in front of scutellum. Elytra punctate striate; punctures in striae moderate in size; intervals convex. Elytron 19.5 long and 3.0 times as long as pronotum; lateral margin with bead complete. Pygidium completely rugose, apical margin with long sparse golden setae; surface convex and prominent towards apex. Venter with mesometasternal protrusion long, and thin, apex sharp and slightly depressed. Metasternum sides setigerously punctate; punctures small and moderately deep; setae abundant, slender, long and pale. Legs with protibia clearly tridentate, with a longitudinal row of deep, wide setigerous punctures; setae long and pale. Inferior genital plates ( Fig. 38 ) conspicuously inverted anchor shape.

Material examined. One female with the following data: “ GUATEMALA, El Progreso, Cerro Pinalon, Cabañas, 2568 mnm., 1 MAYO 2009, 15.084070 -89.942770, Col. Monzón y Camposeco”.

Remarks: Chrysina tecunumani is similar to C. quiche (Morón) , even the female inferior genital plates have the same strange and unique inverted anchor shape. It can be differentiated mainly by the male genitalia which in C. tecunumani has only one apical tooth while C. quiche has two.

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 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.