Boreantrops hondurensis, Kits, Joel H. & Marshall, Stephen A., 2015

Kits, Joel H. & Marshall, Stephen A., 2015, A revision of Boreantrops Kits & Marshall (Diptera: Sphaeroceridae: Archiborborinae), Zootaxa 3915 (3), pp. 301-355 : 321-323

Boreantrops hondurensis sp. nov.

( Figs. 49, 50 , 70, 112)

Diagnosis. Separable from other members of the mexicanus subgroup by the following combination of characters: Prementum entirely orange. Leg joints broadly orange. Mid tibia mostly black. Male sternite 5 with a notch in posterior margin.

Description. Head orange, occiput black medially, ocellar triangle may be brownish, maxillary palp yellow. Mostly covered with microtomentum, frons with microtomentum medially reaching from postocellar bristles anteriorly through ocellar triangle to anterior margin of frons, microtomentum on orbital plates reaching bases of interfrontal setae, face with thin line of microtomentum below lunule and antenna. Ocellar bristles at level of anterior margin of median ocellus. Subvibrissal bristle and anterior genal bristles about 0.3X length of vibrissa.

Thorax black, mostly covered with microtomentum. Proepisternum shiny, anepisternum with microtomentum along dorsal third and posterior third and in a thin line along anterior margin below spiracle, katepisternum with a shiny spot behind fore coxa, meron shiny, metapleuron shiny with a stripe of microtomentum between posterior spiracle and hind coxa. Mesoscutum shallowly sculptured. Halter white, brownish below knob.

Legs black, trochanters, bases and tips of femora orange, fore tarsus with 2 basal tarsomeres ivory white, mid and hind tarsi with 2 basal tarsomeres yellow, all tarsi with 3 distal tarsomeres brown. Mid tibia with 1 anteroventral, 1 posteroventral, 6 subapical bristles. Hind tibia with 1 ventroapical bristle.

Wing brown, veins dark brown, crossveins r-m, bm-cu, and dm-cu white, vein R4+5 with 2 spots distal to crossvein r-m.

Abdominal tergites 1–4 mostly heavily sclerotized, black, covered with microtomentum, syntergite 1+2 with a semicircular weakly sclerotized patch anteriorly. Tergite 5 weakly sclerotized. Sternites weakly sclerotized.

Male postabdomen: Sternite 5 longer than wide, parallel-sided, slightly narrower anteriorly, posterior margin with a deep notch and interrupted row of setae, anterior apodeme broad, shorter than external portion, without keel ( Fig. 50 ). Surstylus paddle-shaped. Hypandrial arms with ventral tab-like structures. Pregonite small, discrete. Postgonite narrowed above lobes, lobes widely separated, anterior lobe broad, rounded, posterior lobe pointed. Basiphallus with long epiphallus, broad, transparent preepiphallus. Distiphallus with strongly curved spinose dorsal tube, distal portion short, pointed apically, ventral portion projecting as far as tip of dorsal tube ( Fig. 49 ).

Female postabdomen: Tergites 6–7 with anterior and lateral margins heavily sclerotized, center and posterior margin not sclerotized. Tergite 8 covered with microtomentum, except anterior margin. Epiproct without anterior arms, mostly covered with microtomentum except anterior corners, with 2 setae. Cerci broad. Sternites 6–7 with margins heavily sclerotized, center not sclerotized. Sclerites of sternite 8 broadest posteriorly, posterior half covered with microtomentum. Hypoproct lozenge-shaped, covered with microtomentum. Spermathecae about 3.5X longer than wide, annulated, apex invaginated, sclerotized duct about 0.7X as long as bulb (Fig. 70).

Type material. Holotype ♂: HONDURAS: Francisco Morazán: Uyuca, dung traps, 10 Jun 1994, H. & A. Howden, debu01040265 ( DEBU). Paratypes: same data as holotype (1 ♂, 2 ♀, DEBU); as above but 1800 m, Malaise trap, 6 Jun 1994, (1 ♂, DEBU); as above but 1798 m, 10 May 1994, (1 ♂, DEBU); as above but Malaise trap, 3 Jun 1994, H. Howden (1 ♂, 2 ♀, DEBU); as above but 6 Jun 1994, H. & A. Howden (1 ♀, DEBU); Cerro Uyuca, 1800 m, Malaise trap, 27 May 1994, H. Howden (3 ♂, 3 ♀, DEBU); as above but 30 May 1994, (2 ♀, DEBU). GUATEMALA: Quetzaltenango: Zunil, 8 km SE, 2650 m, FIT, 19 - 21 Jun 1993, Ashe & Brooks (1 ♀, DEBU); as above but 2630 m, FIT #4, 17 - 19 Jun 1993, (2 ♀, DEBU); as above but 2620 m, FIT #5, (1 ♂, DEBU); as above but 19 - 21 Jun 1993, (1 ♂, DEBU); as above but 2500 m, FIT #3, 17 - 19 Jun 1993, (1 ♀, DEBU); as above but ext. FIT, 19 - 21 Jun 1993, (2 ♂, DEBU); as above but FIT, trap #3, 17 - 19 Jul 1993, (1 ♂, DEBU); Zacapa : San Lorenzo, 4 Apr 1987, [no collector] (2 ♀, DEBU).

Distribution. Guatemala and Honduras (Fig. 112). Elevations above 1800 m.

Etymology. The species name refers to the occurrence of this species in Honduras; it is a declinable adjective.

Figures

FIGURES 49 – 54. Boreantrops male terminalia. B. hondurensis: 49) phallus, postgonite, and phallapodeme, lateral view, 50) sternite 5; B. inbio: 51) phallus, postgonite, and phallapodeme, lateral view, 52) sternite 5; B. longiphallus: 53) phallus, postgonite, and phallapodeme, lateral view, 54) sternite 5.