Megatrachys irrasis, Opitz, Weston, 2019

Opitz, Weston, 2019, Descriptions of new genera and new species of Western Hemisphere checkered beetles (Coleoptera, Cleroidea, Cleridae), Linzer biologische Beiträge 51 (2), pp. 959-1076: 986

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Megatrachys irrasis


Megatrachys irrasis   OPITZ nov.sp. ( Figs 69 View Figs 61-91 , 131 View Figs 118-133 , 302 View Figs 302-305 )

Holotype: ♀. Type locality: Colombia, Boyaca, SFF Iguaque, Qda. Los Francos, Malaise , 13-31- III-2003, P. Reina ( FSCA)   . Paratypes: 2 specimens. Colombia: Departamento de Boyacá, SFF Iguaque , Qda. Los Francos, 30-VII-17-VIII-2000, P. Reina ( WOPC)   ; Bosque de Rastrojo , 5°25'N 73°27'W, 17-VIII-1-IX-2000, malaise, 2050 m, P. Reina ( WOPC) GoogleMaps   .

D i a g n o s i s: Within Megatrachys   OPITZ, this is the only known species whose specimens lack a cranial wisp of black setae.

D e s c r i p t i o n: Size: Length 6.5 mm; width 2.0 mm. Form: As in Fig. 302 View Figs 302-305 . Color: Cranium and pronotum dark castaneous; antennae bicolorous, scape testaceous, remainder of antenna brown; pterothorax and abdominal sternites black; elytra mostly brown, side areas dark brown, with short wisps of black setae; legs bicolorous, femora, tibiae, and tarsi with portions of yellow and brown. Head: Cranium coarsely sculptured, highly setose; antenna ( Fig. 69 View Figs 61-91 ) capitate, funicular antennomeres filiform, progressively shorter towards capitulum, capitular antennomeres 8 and 9 triangular, antennomere 10 ovoid; eyes large, finely facetted, eye slightly narrower than frons (EW/FW 25/28). Thorax: Pronotum ( Fig. 131 View Figs 118-133 ) quadrate, highly setose, somewhat corrugated, disc deeply concave paralaterally near pronotal collar; discal and lateral trichobothria well developed (PW/PL 70/70); elytral disc corrugated; asetiferous punctures large and randomly distributed, small brown and yellow setal wisps present throughout elytral disc (EL/EW 290/55); anterior margin of protibia with 4 spines. Abdomen: Pygidium scutiform.

Variation: The available specimens are quite homogeneous.

N a t u r a l H i s t o r y: The available specimens were collected in a Malaise trap during periods of 13-31-III, 30-VII-17-VIII, and 17-VIII-1-IX.

D i s t r i b u t i o n: ThisspeciesisknownfromColombia.

E t y m o l o g y: The trivial name, irrasis, is a Latin adjective derived from irrasus (= unpolished); with reference to corrugated condition of the surface of the pronotal and elytral discs.


Florida State Collection of Arthropods, The Museum of Entomology