Operclipygus campbelli, Caterino, Michael S. & Tishechkin, Alexey K., 2013

Caterino, Michael S. & Tishechkin, Alexey K., 2013, A systematic revision of Operclipygus Marseul (Coleoptera, Histeridae, Exosternini), ZooKeys 271, pp. 1-401 : 214-215

Operclipygus campbelli sp. n. Fig. 58EMap 20

Type locality.

GUATEMALA: Suchitepéquez: Finca San Rafael Olimpo [14°32'N, 91°34'W].

Type material.

Holotype male: "GUAT. Finca San Rafael Olimpo, Cuyotenango Such. I.21.1966, J.M.Campbell, 1700 ’“ / "collected from large detritus cavity of Atta sp ., 6-8' deep"/ "FMNH-INS 0000069340" (FMNH). Paratypes (186): GUATEMALA: Suchitepéquez: 116: Cuyotenango, Finca San Rafael Olimpo, 1700ft, 21.i.1966, large detritus cavity of Atta sp., 6-8' deep, J.M. Campbell (FMNH, MSCC, AKTC, CHND), 70: 26.ii.1966 (FMNH).

Diagnostic description.

This species is extremely similar to the preceding, differing in only a few characters as follows: length: 1.65-1.93 mm, width: 1.34-1.59 mm; body completely lacking microsculpture; marginal pronotal stria not descending to hypomeron, generally complete along upper edge of lateral pronotal margin as well as behind head; anterior submarginal pronotal stria strongly recurved posterad on about anterior one-third of pronotal disk; elytra with outer subhumeral stria complete, interrupted at middle, or with apical half obsolete, 5th stria present in apical half, sutural stria present in apical two-thirds; prosternal keel truncate at base, not emarginate; mesoventral margin weakly projecting at middle, mesoventral marginal stria complete; mesometaventral stria bluntly angulate forward, only reaching middle of mestosternal disk; propygidium with coarser punctures slightly larger and more closely set, separated by slightly less than their diameters; marginal pygidial stria obsolete in basal half or more. Male genitalia indistinguishable from those of Operclipygus geometricus (see Figs 57 A–D, J).

Remarks.

This species is very similar to Operclipygus quinquestriatus . Both have a nearly complete, but interrupted outer subhumeral elytral stria, as well as a complete frontal stria, strongly recurved anterior submarginal pronotal stria, and a lateral submarginal pronotal stria that is complete and close to the margin. Operclipygus campbelli has the 5th dorsal elytral stria short (Fig. 58E), nowhere near complete as in Operclipygus quinquestriatus .

Etymology.

We name this species to honor J. Milton Campbell, recognizing his efforts in collecting an exceptional series of this otherwise uncollected species.