Euphoria lacandona Orozco, 2012

Orozco, Jesús, 2012, Monographic Revision of the American Genus Euphoria Burmeister, 1842 (Coleoptera: Scarabaeidae: Cetoniinae), The Coleopterists Bulletin (mo 11) 66, pp. 1-182 : 66-67

Euphoria lacandona Orozco , new species

(Appendix 4: Fig. 32 )

Type Material (16). Holotype male labeled “ MEXICO: Chiapas: 26Km./ W. SanCristobal ‘ Casas / 2100m 28 July 1977 / E. Fisher, P. Sullivan ” and with my red holotype label ( UNSM) . Paratypes (15) with the following data: as holotype (2 CDFA, 3 JOAC, 3 PHSC, 2 UAIC, 2 UCRC); “ MEXICO: Chiapas: 26Km.+/ W. SanCristobal ‘ Casas / 2100m 28 July 1977 / E. Fisher, P. Sullivan // Euphoria / vestita/ DET. G&P/ H. F. HOWDEN 94” (1 PHSC), “ MEXICO: CHIAPAS / SUMIDERO CANYON/ D.B. THOMAS COLL/ 10 SEPT 1999 ” (1 CMNC); “ MEXICO, Chis. 11mi. / W.SanCristobal de/ las Casas, 7300’/ VI-4-1974 C.W&L./ O’ Brien & Marshall” (1 WBWC). All paratypes with my yellow paratype label .

Description. Holotype male ( Fig. 32a ). Length 11.1 mm; width 6.2 mm. Color: Dorsal surface yellowish brown, mostly tomentous. Pronotum shiny on apex and anterolateral angles, tomentous elsewhere, with 1 longitudinal, irregular, black vitta on each side of midline; vittae not covering midline or lateral margins, each split from middle to base. Elytra with few black, irregular markings distributed on disc. Ventral surface, including legs, light to dark brown, abdominal sternites bicolored. Head: Frons densely punctate; punctures round, deep, moderate in size, confluent laterally, densely setose; setae yellowish, moderate to long. Clypeus subrectangular, sides strongly raised, lateral declivity strongly expanded; apex moderately reflexed, vaguely sinuate in dorsal view, weakly to moderately sinuate in frontal view; surface as on frons. Antennal club as long as stem. Pronotum: Surface moderately densely punctate; punctures round to lunulate, small, densely setose; setae short to long, yellowish. Sides strongly convergent anteriorly, anterior corners with few rugae. Base in front of scutellum vaguely emarginate. Scutellum sparsely punctate, punctures small, mostly distributed on basal sides. Elytra: Surface moderately densely punctate, striae bearing 3 irregular rows of small, lunulate punctures, irregular punctures, or short grooves, moderately densely setose, setae short to long. Costae weakly developed. Apex weakly rugose. Pygidium: Surface subconcentrically striate; striae dense, discontinuous, moderately setose; setae short, yellowish. Legs: Surface densely setose; setae long, yellowish. Protibiae slender, apical and medial teeth closer to each other than to basal tooth, basal tooth weakly developed. Meso- and metatibial carinae moderately developed. Metatarsi longer than metatibiae. Metatibial spurs slender, apex sharp. Venter: Mesometasternal process weakly compressed laterally, extending anteriorly slightly beyond mesocoxae, apex rounded. Mesepimera, metasternum, and metacoxae densely setose, setae as on legs. Metasternum rugose, densely setose laterally, sparsely punctate and setose at middle; median sulcus strongly impressed. Abdomen flat in lateral view. Male genitalia: Parameres as in Fig. 32c .

Variation. Paratypes (14 males) are similar to the holotype except in the following: Length 10.1–12.4 mm; width 5.9–7.0 mm. Color: Pronotum yellowish brown with black vittae or entirely black, vitta split or fused at base, variable in shape. Head: Clypeal apex moderately to strongly raised. Antennal club as long as or slightly shorter than stem. Pronotum: Base in front of scutellum vaguely to strongly emarginate. Legs: Mesotibial carina weakly to moderately developed. Venter: Mesometasternal process extending anteriorly to the same level as mesocoxae or slightly beyond.

Diagnosis. This species is close to E. avita but is separated from it by the subparallel sides of the clypeus (weakly convergent in E. avita ), clypeal apex moderately to strongly raised (strongly raised in E. avita ), clypeal apex weakly to moderately sinuate in frontal view (deeply sinuate in E. avita ), antennal club as long as or slightly shorter than stem in males (longer than stem in E. avita males), pronotal and elytral punctation, and form of the parameres. The female is unknown.

Natural History. Nothing is known of its biology.

Temporal Distribution. July (14), September (1) ( Fig. 32e ).

Geographic Distribution. Known only from the state of Chiapas, Mexico ( Fig. 32f ).

Etymology. The Lacandones are a Mayan group that inhabits the area where this species is found. “Lacandona” is the feminine Spanish word for a member of this group.

Figures

Fig. 32. Euphoria lacandona. a) Habitus of holotype, b) Head of holotype, c) Parameres of holotype, d) Color variation, e) Temporal distribution, f) Geographic distribution in Mexico.