Cymatodera burkei Rifkind, 2020

Cymatodera burkei Rifkind , new species

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( Figs. 8 View Figs , 43, 44 View Figs )

Specimens Examined. Holotype male: Mexico, Jalisco, Rd. to Microondas los Mazos , mid elev., X-16-2001, attracted to MV & UV light, collector R. L. Penrose ( CSCA) . Paratypes: 1 F ( JNRC), same data as holotype; 1 M ( JNRC), Mexico, Jalisco, Mic. Los Mazos, Vic. Autlan , 31 Oct. 1999, F. T. Hovore, coll .

Description ( Holotype). Length: 13.5 mm. Color: Body reddish testaceous; head, reddish brown; abdomen pale testaceous; elytra pale testaceous, with indistinct light brown transverse banding on anterior 1/2 and two angulate, narrow, transverse brown fasciae on posterior 1/2 ( Fig. 8 View Figs ). Head: Surface rather densely, coarsely punctate and rugulose, clothed with fine, suberect and erect pale setae of various lengths; antenna elongate, slender; antennomeres 2–5 subconical, 6–10 subserrate; antennomere 2 about 1/3 the length of antennomere 3; antennomere 11 longer than antennomere 10, narrowed distally, apex subacute. Pronotum: Elongate, about 2× as long as wide; surface shining, finely, inconspicuously punctate, transversely rugulose, vestiture as on head. Elytra: Elongate (together almost 3× as long as broad), disc flattened above; sides subparallel, gradually, arcuately convergent from posterior 1/5 to separately rounded, dehiscent apices; surface shining, strial punctures coarse, deep, diminished in size and depth on posterior 1/5; vestiture moderately dense but inconspicuous, composed mostly of fine, suberect testaceous setae, intermixed with fewer longer, more robust suberect setae. Metaventrite: Broadly flattened at middle; surface shining, rather sparsely, finely and shallowly punctulate, inconspicuously setose; spicules, carinae, and tubercles absent. Abdomen: Integument shining, moderately densely but inconspicuously setose; ventrites 1–5 sparsely punctate and densely but shallowly granulate; ventrite 5 ( Fig. 43 View Figs ) broad and narrow, sides slightly oblique, posterior angles subacute, posterior margin very broadly, arcuately emarginate; ventrite 6 ( Fig. 43 View Figs ) trapezoidal, slightly convergent posteriorly, posterolateral angles produced, slightly upturned, their apices broadly rounded externally, feebly, subacutely produced internally; posterior margin with deep V-shaped emargination at middle; surface densely but shallowly roughened, inconspicuously but quite densely clothed anteriorly with short, stiff, erect testaceous setae; tergite 6 ( Fig. 44 View Figs ) oblong, feebly convergent posteriorly; underside biconcave; sides subsinuate posteriorly; posterolateral angles narrowly oblique, each giving rise to an elongate setal dagger; posterior margin with a shallow, arcuate emargination on each side, and a deeper, Ushaped inflection at middle. Aedeagus: Apex of phallus subsagittate.

Variation. Size ranges from 11–13.5 mm. The female pygidium is simple: The 6th abdominal tergite has the hind margin subtruncate, slightly surpassing the arcuate hind margin of ventrite 6.

Etymology. The specific name is a patronymic honoring Alan Burke, in recognition of his contributions toward our knowledge of Mexican tilline Cleridae .

Distribution. Known from a single location in Jalisco, Mexico.

Biology. Specimens were attracted to lights.

Diagnosis. Males of C. burkei differ from C. lucubrans by having the metaventrite smooth rather than spicular. The shape of abdominal ventrite 6 also differs somewhat between the two species: C. lucubrans has the posterolateral projections subacutely tapered apically, whereas C. burkei has them broadly rounded posteriorly, with a slight acute projection at the internal angle. Cymatodera locusticauda Rifkind , new species, described below, is very similar, but can be distinguished by virtue of the posterolateral projections of ventrite 6, which are broadly flattened and paddle-like, and the posterior margin of tergite 6, which is entire.