Callistochroma cacica ( Bates, 1885 ) Bates, 1885

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 : 363-365

Callistochroma cacica ( Bates, 1885) , comb. nov.

( Figs. 29–32 )

Crioprosopus cacicus Bates, 1885:319 (Type locality: Colombia); Aurivillius, 1912:457 (cat.); Blackwelder, 1946:588 (cat.); Monné, 1994:38 (cat.); Monné & Giesbert, 1993:141 (cat.); Galileo & Martins, 2003:34, fig. 2 (dist.); Monné & Hovore, 2006:140 (cat.); Monné, 2013:731 (cat.).

Redescription. Male: Length, 26–30 mm. Form moderate sized; integument above, shining, glabrous, head, antennae, thorax, scutellum and legs black; metasternum entirely black or black with reddish infuscated maculae; elytra dark greenish blue, very polished; abdomen reddish to dark reddish-brown. Head with apical segments of labial and maxillary palpi truncate at apices, impressed dorsally. Antennae about twice as long as body, scape with dorsum impressed over basal ¼ to ¾, sides of impression carinate, segments laterally carinate from apex of 3rd–11th, 3rd segment longer than 1st, 4th shorter than 3rd and longer than 1st, 5th and 6th longer than 4th, 7th and 8th slightly longer or subequal to 6th, 9th and 10th subequal or slightly shorter than 8th, 11th longest, twice as long as 10th. Pronotum on each side with small tubercles slightly behind middle, sides of apical ½ rounded; disc with two, vaguely elevated, glabrous calluses near middle, and three, vague calluses behind middle, one median two lateral, sides at apical 2/3 densely, confluently punctate, dorsal punctures in middle very sparse, shallow from apex to base, basal margin transversely impressed; pubescence sparse, pale, long, erect near tubercles; prosternum narrow, each side above coxae with a narrow, transverse, deeply punctate area, pubescence erect, pale, very short intermixed with longer hair; proepisternum densely, confluently punctate. Elytra 2.2 times as long as broad, glabrate, finely, separately punctate; apices obliquely angulate, rounded at sutural angle, exterior angle obtusely dentate. Legs with femora, tibia and tarsi black; hind femora almost attaining apex of elytra. Abdomen with 5th sternite broadly subtruncate at apex, shallowly emarginate medially.

Female: Length, 25–31 mm. Form robust. Integument similar to male, except pronotum with sides of the apical half obtusely tuberculate, disc glabrous, nitid, very sparsely, shallowly punctate, either all black or sometimes with reddish maculae on each side adjacent to lateral tubercles; prosternum finely, sparsely punctate above coxae, black; proepisternum sparsely punctate, either all black, or with reddish maculae. Antennae extending about 1–1.5 segment beyond elytra, 3rd segment longer than 1st, 4th shorter than 3rd, 5th–9th subequal to 3rd, 10th shorter than 9th, 11th appendiculate, slightly longer than 3rd. Abdomen with 5th sternite broadly rounded, apex vaguely emarginate.

Distribution. Colombia, Peru

Materials examined. COLOMBIA, S.A.: V 1925, Muzo, Edwin R. Leach Col., 1971 (1 male, EMEC); Felipe Ovalle, Q, AC 33501 (1 female, EMEC); Calima Valley, 10 August 1983 (1 male, JCEC); Dept. de Valle, Calima Valley, 10 August 1983 (1 female, JCEC); Pehluke, Tippmann Coll., ’57, 213112 (3 females, USNM), Fusagasuga, H. Silchel, Tippmann Coll., ’57, 213112 (1 male, 1 female, USNM); Colombia, Tippmann Coll., ’57, 213112 (1 male, USNM); Peru: Satipo, 29 December 1937, F. Tippmann, Tippmann Coll. ’57, 213112 (1 female, USNM)

Note. Callistochroma cacica can be distinguished from C. rutilans (Bates) by the following characteristics: (1) legs entirely black (instead of femora reddish with apices black as in C. rutilans ); (2) hind femora are longer and almost attaining the apex of elytra (instead of shorter and not extending beyond body as in C. rutilans ); and (3) elytra are more distinctly, separately punctate (instead of punctures very fine and nearly obsolete as in C. rutilans ). The male examples of C. cacica examined above have a pronotal disc with two, vaguely elevated, glabrous calluses near the middle and three, vague calluses behind the middle. Some male cacica may have reddish markings on both sides of pronotum beneath the lateral tubercles. According to Bates, “ elytra are relatively short, and apices obtuse ”. The elytra of cacica may appear “ short ” due to the longer hind femora, which may attain the apices of elytra in both sexes. The sutural angle of each elytron appears to be more obtuse than other species giving it a more truncated appearance of the apices; therefore, construed as “ apices obtuse ” by Bates. The antennae of the male are twice as long as the body.

Figures

FIGURES 29 – 40. Dorsal and Lateral view of Callistochroma. 29, 30: Callistochroma cacica (male, Colombia); 31, 32: Callistochroma cacica (female, Colombia); 33, 34: Callistochroma chrysiptera (female); 35, 36: Callistochroma flavofasciata (female); 37, 38: Callistochroma lampros (male, Panama, Cerro Jefe); 39, 40: Callistochroma lampros (female, Panama, Cerro Jefe).