Stegnoclava velatis Opitz

Opitz, Weston, 2010, Classification, Natural History, and Evolution of the Epiphloeinae (Coleoptera: Cleridae). Part VIII. The Genera Acanthocollum Opitz, Stegnoclava Opitz, and Ichnea Laporte, The Coleopterists Bulletin (mo 9) 64, pp. 1-65 : 14-17

Stegnoclava velatis Opitz , new species

( Figs. 14 , 29, 31 , 33 , 39, 131 ; Map 1 )

Holotype. ♂. Brazil: Mato Grosso: Sinop, X-75, M. Alvarenga ( FSCA). (Specimen point mounted, gender label affixed to paper point; support card, metathoracic wing mounted on support card; locality label; FSCA acronymic label; Holotype label; plastic vial with aedeagus.)

Paratypes. None.

Diagnosis. The more angular pronotal tubercle (compare Figs. 30 and 31 ), South American distribution, and more slender antennal club (compare Figs. 13 and 14 ) will conveniently distinguish the members of this species from superficially similar specimens of S. zorropsis Opitz , new species.

Description. Size: Length 6.1 mm; width 1.8 mm. Form ( Fig. 131 ): Long rectangular. Integumental color ( Fig. 39): Cranium bicolored, lower frons and epicranium yellow at sides, black on top, upper frons and vertex black, antennae dark brown; pronotum dark brown at lower sides and centrally on disc, yellow in upper sides and along anterior margin; elytra mostly yellow, infuscated in anterior half of epipleural margin, dark brown in distal third, legs dark brown, except yellow in proximal half of femora. Head: HW/ PW 1.0; EW/VW 0.81; antenna as in Fig. 14 , funicle compressed, length half of antennomere 8. Thorax: Pronotum ( Fig. 31 ) with obtuse lateral tubercle; PL/PW 0.83; elytra long rectangular, EL/PL 5.0; EL/EW 3.3; anterior margin of protibia with 14 spines. Male genitalia: Aedeagus as in Fig. 29 . Male

mesodermal internal reproductive organs ( Fig. 33 ): Two pairs of accessory glands, medial pair shorter than lateral pair.

Variation. One specimen examined.

Natural History. The only known specimen was collected in the central highlands of Brazil during October.

Distribution. Known only from the type locality, BRAZIL: Mato Grosso ( Map 1 ).

Etymology. The specific epithet velatis is a Latin name that stems from velo (= cover) and the Latin possessive suffix – is and refers to the dark mask-like macula on the frons and epicranium.

Figures

Map 1. Geographic distribution of Acanthocollum melanurum and Stegnoclava spp.

Figs. 9–14. Body structures of Acanthocollum melanurum (9–12) and Stegnoclava spp. (13–14). 9) Metathoracic wing; 10) Metendosternite; 11) Pronotum, ventral view; 12) Maxilla; 13) Antenna of Stegnoclava zorropsis; 14) Antenna of Stegnoclava velatis.

Figs. 22–31. Stegnoclava spp. 22) Maxilla of S. fumigata; 23) Mandible of S. fumigata; 24) Labium of S. fumigata; 25) Labrum of S. fumigata; 26) Metendosternite of S. fumigata; 27) Aedeagus of S. fumigata; 28) Aedeagus of S. zorropsis; 29) Aedeagus of S. velatis; 30) Forebody of S. zorropsis; 31) Forebody of S. velatis.

Figs. 32–35. Stegnoclava spp. 32) Metathoracic wing of S. fumigata; 33) Mesodermal male reproductive organs of S. velatis; 34) Mesodermal male reproductive organs of S. fumigata; 35) Mesodermal male reproductive organs of S. zorropsis.

Figs. 130–132. Line habiti of 130) Stegnoclava zorropsis; 131) Stegnoclava velatis; 132) Ichnea gregata.