Contacyphon luteolineatus ( Solier, 1849 )

Ruta, Rafał, 2020, An overview of Scirtidae (Coleoptera) described by Antoine Joseph Jean Solier (1792 - 1851), Zootaxa 4767 (4), pp. 563-577 : 565-566

Contacyphon luteolineatus ( Solier, 1849)

( Figs 2A , 3A , 5 )

Cyphon luteo-lineatum Solier, 1849: 459 (terra typica: inmediaciones de Coquimbo)

Helodes luteolineatus Solier : Gemminger & von Harold 1869: 1618

Cyphon luteolineatum: Blackwelder 1944: 266 (checklist: Chile); Moroni 1985: 174 ( Chile, prov. de Coquimbo)

Cyphon luteolineatum: Pic 1914: 32 (checklist: Chile)

Contacyphon luteolineatus ( Solier, 1849) : Zwick et al. 2013: 343

Type material. Lectotype (present designation), “ Cyphon \ luteolineatum \ Sol. Chili ” [handwritten with brown ink, probably by Solier]; “9 \ 45“ [handwritten on a green, round label]; […] [illegible label, handwritten with ink]. The specimen is missing head and pronotum.

Description. Male, EL = 2.9 mm. Scutellar shield yellowish, elytra brownish-black with yellow, irregular pattern consisting of transverse, narrow bands, ventrum brown, legs yellowish. Punctures on elytra separated by 0.5–0.7 diameter of a puncture. Penis (L 0.57 mm, W 0.18 mm) relatively narrow, trigonium with two denticles and small emargination at apex, parameroids narrow, apical portion with a few setae; tegmen (L 0.59 mm, W 0.35 mm) with narrow parameres, slightly narrowing towards apex, styli present (one is missing in the lectotype), as long as parameres, densely covered with setae; tergite VIII (L 0.40 mm, W 0.31 mm) with subrectangular apical plate, densely covered with setae on apical margin, apodemes as long as apical plate; tergite IX (L 0.42 mm, W 0.32 mm) narrower than tergite VIII, apical setation absent, apodemes slightly diverging basally; sternite IX (L 0.31 mm, W 0.17 mm) with single apodeme only, apical portion damaged in the lectotype.

Remarks. The original description includes no information on the number of specimens examined by Solier. A lectotype is designated in order to preserve the stability of nomenclature by selecting one specimen as the sole, name-bearing type of the taxon.

Figures

FIGURE 2. Historical labels of Scirtidae specimens from the collection of A. Solier (A–I), and specimens collected by C. Gay (J–K). A) Contacyphon luteolineatus; B) Contacyphon maculicornis; C) Contacyphon parvus; D) Contacyphon testaceus; E) Contacyphon tristis; F) Elodes rousseli; G) Pseudomicrocara lunata; H) Pseudomicrocara obliquata; I) Pseudomicrocara tor- quata; J) an unidentified specimen; K) Contacyphon maculatus.

FIGURE 3. Lectotypes of species described by A. Solier, general view. A) Contacyphon luteolineatus (Solier, 1849); B) Con- tacyphon maculicornis (Solier, 1849); C) Contacyphon parvus (Solier, 1849); D) Contacyphon testaceus (Solier, 1849); E) Contacyphon tristis (Gemminger, 1869); F) Elodes rousseli Solier, 1849; G) Pseudomicrocara lunata (Solier, 1849); H) Pseudomicrocara obliquata (Solier, 1849); I) Pseudomicrocara torquata (Gemminger, 1869). Scale bars = 1.0 mm.

FIGURE 5. Contacyphon luteolineatus (Solier, 1849), lectotype, male genitalia.A) penis; B) tegmen; C) tergite VIII; D) tergite IX; E) sternite IX. Scale bar = 0.25 mm.