Crioprosopus gaumeri Bates, 1892

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 : 385-386

Crioprosopus gaumeri Bates, 1892

( Figs. 118–119 )

Crioprosopus gaumeri Bates, 1892:172 (Type locality: Mexico, Yucatán: Temax); Aurivillius, 1912:457 (cat.); Blackwelder, 1946:588 (cat.); Chemsak, 1967:75 (lect.); Chemsak et al.,1992:80 (cat.); Monné, 1994:38 (cat.); Monné & Giesbert, 1993:141 (cat.); Noguera & Chemsak, 1996:402 (dist.); Monné & Hovore, 2006:140 (cat.); Monné, 2013:731 (cat.).

Redescription. Male: Length, 33–41 mm. Form large; integument reddish-brown, head and thorax castaneofuscus, antennal segments 1–6 black to dark castaneous, segments 7–11 gradually lighter, reddish-brown, femora reddish-orange except apices black, tibiae dark castaneous to black, tarsi black, elytra green-golden yellow, occasionally partly translucent reddish-yellow. Head with vertex glabrate, very finely punctate at base; front deeply impressed transversely, each side with a pit, median line, extending onto vertex between a swollen area between eyes; palpi with apices of labial pair rounded, maxillary pair subtruncate; antennal tubercles with apices angulate; antennae longer than body surpassing elytra apices by 1–2 segments, scape with basal ¼ longitudinally impressed, segments 3–11 laterally carinate, longitudinally impressed on both sides of carina on apical ¼ of 3rd, apical ¾ of 4th, and entire length of 5th and 6th, dorsal surface impressed (or longitudinally canaliculate) on apical ¾ of 3rd and on segments 4–5, 3rd segment longer than 1st, 4th shorter than 1st, each segment from 5–7 subequal to 1st, segments from 8th–10th subequal to or shorter than 1st, 11th longest. Pronotum 1.6 x as broad as long, laterally rounded or weakly angulated, sides densely, contiguously punctate, disc densely, contiguously punctate, anterior half with broad, shallow, transverse impression in middle, posterior half with two oblique impressions on each side of middle; dorsal median line glabrate, anterior half of median line narrow (0.14x width of upper lobe interocular space) dilated abruptly at apex, ante-medially with transversely rhombiform dilation near middle, post-medially with median line 2-fold wider than anterior median line, gradually dilated towards base into a smooth, elongatetriangular, sparsely punctate area; prosternum densely, contiguously punctate, surface sparsely clothed with white, suberect, short hair; mesosternum with sides densely clothed with short, appressed, silvery pubescence. Scutellum black. Elytra about 2.1 times longer than broad, parallel-sided, slightly tapering apically; disc with basal ½ very finely, sparsely punctate, punctures obsolete or very fine apically, basal ½ and along suture transversely wrinkled, apices obliquely truncate. Abdomen with sternites finely, densely pubescent.

Female: Not available for study. According to the description by Bates (1892:172), females are “ Similar to C. basileo , differs so much in elytra not as brilliant, and thorax (golden–reddish) anterior margin with two discoid black macule. Length 34–38 mm. Habitus: Mexico, Temax, North Yucatán.” See photo accessed in website (Bezark, 2014, id: 6136).

Distribution. Mexico, Yucatán.

Materials examined. MEXICO: Yucatán, Piste, 4 Sept 1967 (1 male, EMEC). The following materials are also from the Yucatán peninsula: Yucatán, Yokdzonot, 1 Aug 1975 (1 male, EMEC); Qintana Roo, X-Can, April 1966, E.C.W. Leg. (1 male, EMEC); Nuevo X-can, 4 November 1976 (1 male, JCEC).

Note. The four specimens listed above that were examined, all from the Yucatán Peninsula, are variable in the shape and sculpturing of the prothorax and elytra. However, based on the photograph of the male Crioprosopus gaumeri lectotype (Bezark, 2014, id: 6136), this species has sides of its pronotum that are rounded and elytra that are parallel-sided. Currently, the material from Yucatán (Piste, 4 Sept 1967; Figs. 118–119 ) is considered to be this species, and the description above is based on this male. According to Bates (1892:172), “ the rounded sides of thorax, is not constant, some examples being slightly angulated, though not nearly approaching the distinctly lobed form of C. basileus . ” Other materials from Yucatán (Yokdzonot; Figs. 120–121 ) and Quintana Roo (Nuevo X-can, Figs. 122–123 ) have slightly to more angulated sides of prothorax, and more apically tapered elytra.

In general, male C. basileus Bates and C. championi Bates have the elytral discs, which are metallic green (occasionally bluish) and distinctly punctate from base to apex. All materials examined from the Yucatán Peninsula, including C. gaumeri , have elytra that are green-golden yellow with reddish-yellow translucence, and basal ½ of elytra that are very finely and sparsely punctate, and punctures obsolete apically. C. gaumeri males also have antennae that are 1–2 segments longer than the apices of the elytra, and apices of the fermora are abruptly black. The length of antennae is variable in C. basileus male, and femora entirely reddish. C. championi male have shorter antennae (¼ shorter than body), an ovate form of prothorax without a trace of lateral tubercles, and femora that are reddish and vaguely darker apically. C. iridescens White have a more angulated thorax, and highly iridescent, shining yellowish metallic green elytra, which appear to be more tapered as in the holotype shown on the website (Bezark, 2014, id: 6088). The male from Nuevo X-can ( Figs. 122–123 ), noted in the materials examined section, may be conspecific to C. iridescens .

Figures

FIGURES 110 – 121. Dorsal and Lateral view of Crioprosopus (cont.). 110, 111: Crioprosopus basileus (female, Mex., Guerrero); 112, 113: Crioprosopus basileus (female, Mex., Jalisco); 114, 115: Crioprosopus championi (male); 116, 117: Crioprosopus chiriquiensis (female); 118, 119: Crioprosopus gaumeri (male, Mex., Yucatan, Piste); 120, 121: Crioprosopus sp. (male, Mex., Yucatan, Yokdzonot).

FIGURES 122 – 133. Dorsal and Lateral view of Crioprosopus (cont.). 122, 123: Crioprosopus sp. (male, Mex., Quintana Roo, Nuevo X-can); 124, 125: Crioprosopus hondurensis (male); 126, 127: Crioprosopus nieti (male); 128, 129: Crioprosopus nieti (female); 130, 131: Crioprosopus rimosus (male); 132, 133: Crioprosopus rimosus (female).