Crioprosopus amoenus Jordan , 1895

Eya, Bryan K., 2015, Revision of the Genus Crioprosopus Audinet-Serville, and description of three new genera of Trachyderini (Coleoptera: Cerambycidae: Cerambycinae), Zootaxa 3914 (4), pp. 351-405 : 377

Crioprosopus amoenus Jordan, 1895

( Figs. 92–93 )

Crioprosopus amoenus Jordan, 1895:220 (Type locality: Costa Rica, Guanacaste: Bebedero); Aurivillius, 1912:457 (cat.); Blackwelder, 1946:588 (cat.); Chemsak et al., 1992:80 (cat.); Monné, 1994:38 (cat.); Monné & Giesbert, 1993:141 (cat.); Monné & Hovore, 2006:140 (cat.); Swift et al., 2010:31 (dist.); Monné, 2013:730 (cat.).

Redescription. Female: Length, 35 mm. Form robust, integument above, shining, glabrate, black; head, antennal segments 1–6 dark reddish brown to black, segments 7–11 brownish; pronotum orange with apical margin and medial macula black; elytra black with transverse reddish-ochraceous, ante-median and subapical bands; femora orange with apices and basal ½ black; tibiae, tarsi, coxae, pro- meso-metasternite, first abdominal segment (except for apical-lateral margin) black; metepisterna orange with outer margin black; abdominal segments 2–5 orange, darker apically. Mandibles with palpi short, apical segments of labial pair subtruncate at apex (not impressed dorsally), maxillary pair subtruncate at apex, impressed dorsally. Antennae extending about 1.5 segments beyond elytra, scape conical, rugulosely punctate, dorsum impressed over basal 2/3 to ¾, outer side of impression carinate, segments laterally carinate from apex of 3rd–11th, dorsal and ventral surface impressed or canaliculate on apical 2/3 of 3rd, and on segments 4–6, 3rd segment longer than 1st, 4th shorter than 3rd, 5th sub-equal to 3rd, 6th–10th successively shorter, 11th appendiculate, subequal to or longer than 1st. Pronotum broader than long, side with large tubercles at middle, lateral surface of anterior half rounded; disc glabrate, nitid, finely, shallowly punctate, with five, vague calluses, two on anterior half near middle and three behind middle, one median, two lateral, apical margin shallowly impressed on both sides of middle, basal margins transversely impressed, pubescence sparse, pale, long, erect around lateral tubercles and near base; prosternum glabrate, shallowly, transversely striate-punctate above coxae, apical margin deeply impressed, intercoxal process, coarsely, sparsely punctate; mesosternum with intercoxal process subtuberculiform, produced below coxal cavity; metasternum with very finely pale pubescent at sides, sparse, longer medially. Scutellum triangular, as long as wide, impunctate, black with base orange. Elytra 2.4 times as long as broad, glabrate, wrinkled around scutellum along suture, sides slightly tapering, punctures obsolete; pubescence limited to apices and lateral margin, otherwise obsolete; apices obliquely subtruncate, exterior angle obtusely dentate, lateral margin extending to apex and to suture of elytra. Legs with femora not extending beyond body. Abdomen with 5th sternite broadly rounded at apex, shallowly emarginate medially, finely, densely punctate, densely pubescence with short, suberect reddish hair.

Distribution. Costa Rica.

Material examined. COSTA RICA: Guanacaste Prov., Estacion Pitilla, Sector Fila Orosillito, P.N. Guanacaste, 800–1000 m, April 1994, C. Moraga (1 female, EMEC / INBIO).

Note. The mesosternal intercoxal process of the female Crioprosopus amoenus is subtuberculate and protrudes below the mesocoxal cavity ( Fig. 4 ). The antennae are longer than body unlike females with metallic elytra. The scutellum is triangular and is as wide as long, impunctate, and black with an orange base ( Fig. 8 ). The ventral sclerites, especially the sternites of the abdomen of amoenus are more glabrate compared to those of the metallic Crioprosopus . The dorsal and ventral surface of the antennal segments 3 to 6 are impressed (canaliculate) as in many Crioprosopus species. At this time, amoenus is retained in Crioprosopus until a male is captured and the pronotal characteristics are examined. The reddish-ochraceous femora and abdominal sternites combined with the subtuberculate mesosternal process and overall glabrate form separates amoenus from the other species of Crioprosopus .

Figures

FIGURES 92 – 103. Dorsal and Lateral view of Crioprosopus. 92, 93: Crioprosopus amoenus (female); 94, 95: Crioprosopus basileus (male, Mex., Oaxaca, Ocotlan); 96, 97: Crioprosopus basileus (praestans) (male, Mex., Guerrero, Mochtitlan); 98, 99: Crioprosopus basileus (female, Mex., Oaxaca, Ocotlan); 100, 101: Crioprosopus basileus (female, Mex., Oaxaca, Mitla); 102, 103: Crioprosopus basileus (female, Mex., Jalisco).

FIGURES 3 – 10. Crioprosopus Pro- and Mesosternal Intercoxal Process (3 – 6), and Scutellum (7 – 10): 3, 7: tricolor (female), 3 a: subtuberculiform mesosternal intercoxal process; 4, 8: amoenus (female), 4 a: prosternal intercoxal process arcuate; 5, 9: servillei (female), 5 a: mesosternal intercoxal process arcuate at apex; 6, 10: Crioprosopus sp. (male, Mex. Yucatan, Yokozonot), 6 a: mesosternal intercoxal process protuberant but not extending below 6 b, 6 b: plane of prosternal intercoxal process; 7, 8 and 9: short triangular scutellum, length scarcely longer than width; 10: elongated scutellum, longer than wide.