Dalmoburis amator sp. nov.

DNA barcodes: GenBank PX930300, PX930304

Figs 127G–I, 128E–F

Typematerial. Holotype ♂ (ZSFQ-i15249):“ ECUADOR: Manabí, 0.0832˚S, 80.1520˚W, Lalo Loor Bosque Seco Res., 23–27.v.2011, AT1307, M. Caterino, A. Tishechkin, under bark, rotting wood ” / “Caterino DNA voucher, Ext. MSC-12499, Pselaphinae ” / “ZSFQ-i15249”; deposited in ZSFQ. Paratypes (3♀): same locality as type (ZSFQi23243–i23245).

Diagnosis. (TL: 1.9mm) Body (Fig. 127G) elongate, orange, weakly and inconspicuously covered with short, semirecumbent setae; head broad, smooth, with sparse erect setae; eyes moderately protuberant; vertexal foveae distinct, in male joined by shallow, ‘V’-shaped sulcus; sides of frons with narrow, shallow emargination just above antennal corners; labrum narrow at base, slightly widened to truncate, setose apex; antennal bases weakly elevated; antennae short, scape cylindrical, male antenna bent, antennomere II subquadrate, edges rounded, III–V short, weakly transverse, edges rounded, antennomere VII narrower on inner edge than outer, antennomeres VIII–X slightly asymmetrical, wider along medial margin than outer; pronotum wide, rounded widened from base to apex; lateral foveae present, not too deep; median pronotal fovea absent, lateral foveae joined by distinct, sinuately ‘V’- shaped transverse impression; elytra lacking dorsobasal and subhumeral foveae; male profemur (Fig. 127I) slightly pinched near apex of inner margin; male protibia abruptly thickened in apical half; male metatibia (Fig.127I) strongly curved, with tooth near base of inner margin; last visible abdominal ventrite shallowly transversely depressed. Aedeagus (Fig. 128E, F) with basal bulb well developed, somewhat dorsoventrally flattened, membraneous above; parameres apparently fused, arched upward then down, flattening, bent inward to broadly subtruncate apices, with prominent setae just basad outer corner; tegmen shorter than parameres, weakly emarginate at apex; inner armature asymmetrical, with short curved acute processes dorsally, one with outer marginal denticles, and short broad laminate plates ventrally.

Etymology. The name of this species (‘lover’ in Latin) refers to the grasping male legs and the cordate pronotum.

Distribution. This species is known only from lowland dry forests of the Bosque Seco Lalo Loor Reserve, managed by the Ceiba Foundation, in Manabí, Ecuador.

Remarks. This species is generally similar to the one described species, D. petrunkevitchii, sharing an overall habitus and pronotal shape, in addition to particular defining generic characters. An interesting character they share, not previously mentioned, is the fine, vertical indentation of the lateral margin of the frons, perhaps homologous with the deeper incision seen in species of Trimicerus Motschulsky. Dalmoburis amator differs from the described species in having a shallower basal pronotal sulcus, which is further forward than in D. petrunkevitchii. The arcuate depression of the head is shallower in the new species, while the sides of the head are slightly more parallel (not convergent). The body setae of the new species are denser and shorter. The modifications of the metatibia in the new species, which it may meaningfully share with Dalmodes brevicollis (Sharp) (for a time also considered to belong to Dalmoburis) are not present in D. petrunkevitchii.