A revision of the New World genus Aptilotella Duda (Sphaeroceridae: Limosininae) Luk, Stephen P. L. Marshall, Stephen A. Zootaxa 2014 2014-02-05 3761 1 1 156 Luk & Marshall Luk & Marshall 2014 [151,573,151,178] Insecta Sphaeroceridae Aptilotella Animalia Diptera 22 23 Arthropoda species gladia sp. nov.   Figures 111–118  Description.Habitus as in  Aptilotella gracilis( Figs. 15, 16). Body length 1.3 mm. Head ground color orange, darkening posteriorly. Frons with polished interfrontal plate and a silvery stripe on orbital plate along interfrontal suture; ocular emargination with a silvery spot. Ocellar tubercle raised; ocelli present; ocellar bristle approximately two-thirds the length of frons. Orbital bristle present; orbital setulae minute, in four pairs. Interfrontal setae in two pairs. Face and gena shining; lower corners of facial excavation diffuse brown. Antenna orange. Scutum reddishbrown, shining; uniformly setose. Scutellum black, lightly microtrichose, finely rugose; twice wider than long, 0.7 times the width of scutum. Apical scutellar bristles twice as long as outer, 0.8 times the length of scutum. Pleuron dull orange; katepisternum and meron dark brown. Legs yellow ochre; mid and hind coxae dark brown; fore tibia and first segment of fore tarsus dark brown; fore tarsus off-white; mid tibia with three anterodorsal and one distal posterodorsal bristle. Wing ( Fig. 118) club-shaped in male; reduced and spearhead-shaped in female. Abdomen black, shining; tergites finely rugose, uniformly densely microtrichose, each with two rows of setae; sternites setose and finely microtrichose.  Male terminalia.Sternite 5 ( Fig. 114) in posteromedial third shallowly convex and emarginate, flanked on each side by 6–8 long setae. Synsternite 6+7 as in Figure 113. Tab-like piece articulating with sternite 5 emargination; posterior corners pointed and folded inward. Cercus ( Figs. 111, 112) 2.5 times as long as wide, distal third bilobed; the outer lobe half the length of the inner, swollen and laterally with a long seta; the inner lobe compressed, apically truncate and with a lateral tooth. Surstylus ( Figs. 111, 112) extremely long and sinuate, 1.5 times the length of cercus, basally with several long setae, apically rounded; base with asymmetrical flaps that project outward, enormous on the right surstylus and descending beyond the cercus, much smaller on the left surstylus and not descending. Postgonite ( Fig. 116) broad; descending arm short, slightly curved forward and tapering; articulatory process for pregonite rounded; articulatory process for basiphallus knobbed. Hypandrium ( Fig. 117) broad; medial rod apically rounded, slightly slanting to the right; posteromedial fork divergent and webbed; hypandrial arms curved, the left arm more triangular; pregonite short, irregularly triangular. Aedeagus as in Figure 115. Basiphallus compressed, squared, with prominent epiphallus; anterior margin weakly arched; articulatory process for postgonite apically dilated, directed anteriorly. Ejaculatory apodeme indistinct, with four sensory pores. Ventrobasal sclerite divided. Lateral flanking sclerite not fused ventrobasally; dorsal margin rolled in basal third, then widely separated and tapering. Ventral flanking sclerites dark; the basal article originating along ventral margin of lateral flanking sclerite, the distal portion very narrow and apically spatulate, apicodorsally densely clothed in suspended minute denticles; the medial article originating inner to lateral flanking sclerite, rising sinuously alongside the basal article and similarly dilated; the depressed distal article originating from below medial article, lobed inward and with a dark knob on inner margin. Medial paired sclerites originating inside of the medial article, projecting slightly beyond the distal article. An additional pair of slender club-tipped sclerites originates between medial and distal articles, curving upward and apicodorsally clothed in suspended minute denticles.  Female terminalia.Not dissected; described from the single female specimen. Epiproct light brown, triangular; apically finely hairy. Each half of tergite 8 weakly convex, pentagonal; setaceous. Cercus 2.5 times as long as wide; with one long apical seta and several preapical setae. Sternite 8 retracted from view and not examined.   Variation.The pleuron is sometimes reddish-brown as the scutum.   Etymology.The species epithet refers to the sword-shaped surstyli.   Type material.  Holotype ♂, UNAM. MEXICO: Oaxaca, 5.1 kmS Suchixtepec,  2150 m,  25.vii.1992, oak/ alder/pine forest, R.S. Anderson.    Paratypes. MEXICO: Oaxaca, same label as holotype( 2♂, ♀, DEBU); same label as holotypebut dated  24.vii.1992( ♂, DEBU).    Comments.  Aptilotella gladiais readily distinguished from  A. gracilisby the paired silvery stripes on the frons and reddish-brown thorax. The bizarre surstyli with apically rounded asymmetrical lateral flaps are apomorphic for  A. gladia. 3311767392 1992-07-25 UNAM R. S. Anderson. Mexico 2150 Suchixtepec 22 23 1 1 Oaxaca holotype 3311767378 1992-07-24 DEBU Mexico Oaxaca 22 23 4 1 3 Oaxaca paratype