Saprolochus tridentatus Skelley, 2007

Skelley, Paul E., 2007, New South American taxa of Odontolochini Stebnicka and Howden (Coleoptera: Scarabaeidae: Aphodiinae), Insecta Mundi 2007 (22), pp. 1-15 : 7-9

publication ID

https://doi.org/ 10.5281/zenodo.5172488

persistent identifier

https://treatment.plazi.org/id/03968799-FFAA-4D6A-40F7-9747A3D1200B

treatment provided by

Felipe

scientific name

Saprolochus tridentatus Skelley
status

sp. nov.

Saprolochus tridentatus Skelley , new species

( Figure 10 View Figure 9-11 , 15-16 View Figure 15-16 )

Type material. Holotype female, label data: “ PERU: Madre de Dios, Dept. Tambopata, 28-X-1982, L. E. Watrous & G. Mazurek; ex rotten palm flowers, FMHD #82-401/ Saprolochus sp. Stebnicka, singleton [placed on specimen by Z. T. Stebnicka]/ [red paper] HOLOTYPE Saprolochus tridentatus P. E. Skelley 2007 ” [ FMNH]. One paratype female, label data: “ BOLIVIA: Cochabamba Dept., Villa Tunari, Hotel El Puerta, S16 o 59.02' - W65 o 24.50', 15-27-XII- 2005, 357m, rainforest FIT, S. & J. Peck, 05-45/ [yellow paper] PARATYPE Saprolochus tridentatus P. E. Skelley 2007 ” [ MNKN]. GoogleMaps

Diagnosis. This is the only known Saprolochus with 3 teeth on the lateral pronotal margin.

Description. Female body length 3.5-3.7 mm, width 1.5-1.6 mm; elongate, robust, somewhat parallelsided ( Fig. 15 View Figure 15-16 ); surface dulled, dark reddish brown, nearly black. Head broad, convex, surface coarsely punctate across basal half, punctures as large as those on pronotal base; anterior half of head (clypeus) smooth, widely glossy along anterior margin, minutely punctate, granulate area on each side; clypeal edge smooth, lacking teeth, rounded each side of median emargination. Pronotum widest at middle, almost quadrate in dorsal view in dorsal view; surface coarsely punctate, interspersed with minute punctures, coarse punctures largest at base, becoming smaller anteriorly, coarse anterior punctures half diameter of basal punctures, all coarse punctures separated by 0.5-1 diameters on disc, nearly coalescing near anterior lateral angle; in lateral view, lateral edge emarginate near base, emargination bounded by teeth with third tooth between; pronotal basal edge evenly convex, nearly straight; with complete, broad basal groove. Scutellum small, elongate, narrow, triangular. Elytra with basal marginal bead and humeral denticle; surface dulled, alutaceous; intervals evenly convex at base, becoming weakly tectiform on declivity; finely, irregularly punctate along midline; striae deep, sharply defined, punctures longitudinally elongate, separated by less than their length. Prosternum broad, flat behind procoxa. Meso- and metasternal juncture straight, flat. Mesosternum with shallow acutely V-shaped depression from base, leading to small group of coarse punctures on each side near anterior part of mesocoxae; anterior mesosternal margin with band of coarse punctures. Metasternum foveately punctate laterally, medially minutely punctate either side of distinct longitudinal medial groove ( Fig. 16 View Figure 15-16 ); coarse lateral punctures forming transverse lines near meso- and metacoxae which are not present medially. Abdominal sternites 1-5 with large basal punctures forming fluting; sternites 2-4 with medial transverse row of large punctures laterally, not connecting along midline; apical half of sternite 5 and sternite 6 minutely punctate. Pygidium eroded on apical half, eroded area divided by fine longitudinal medial carina; apical margin on each side of middle with single seta. Profemur ventral surface finely, sparsely punctate. Protibia with 3 distinct lateral teeth, evenly spaced, apical tooth largest; protibial spur prominent. Meso- and metafemur with complete posterior marginal line; surface finely punctate; posterior margin of metafemur very weakly lobed at middle. Meso- and metatibia narrow, gradually widened to apex, with 2 distinct apical spurs, lacking lateral apical accessory spine; apical fringe of setae short. Meso- and metatarsi elongate, not as long as tibia; basal tarsomere same length as long tibial spur, 3 times longer than second tarsomere. Male unknown.

Etymology. The name was selected for the unique tridentate pronotal margin present on this species.

FMNH

Field Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Aphodiidae

Genus

Saprolochus

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