Boreantrops zamora, 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 : 348-353

Boreantrops zamora sp. nov.

( Figs. 99 , 131)

Diagnosis. Separable from other members of the emarginatus group by the following characters: Occiput black, prementum dark brown. Anterior margin of anepisternum shiny below spiracle. Fore leg with distal three tarsomeres brown. Mid tibia with row of anterodorsal bristles. Hind tibia without anteroventral bristle, with one ventroapical bristle. Wing without white spots. Postgonite without a projection on posterior margin.

Description. Occiput, posterior portion of frons, and lateral portion of face black, anterior part of frons, gena, median portion of face, clypeus, and prementum dark brown, antenna dark orange, maxillary palp yellow. Mostly covered with microtomentum, frons shiny medially with microtomentum reaching interfrontal setae and around bases of ocellar bristles, face mostly shiny with microtomentum below lunule and in crescents below antennal bases. Ocellar bristles just anterior to median ocellus. Subvibrissal and anterior genal bristles about 0.6X length of vibrissa.

Thorax black, mostly covered with microtomentum. Proepisternum shiny, anepisternum mostly shiny with microtomentum covering dorsal margin and posterior quarter, katepisternum with a shiny spot behind fore coxa, meron shiny, metapleuron with a shiny spot in posteroventral corner. Halter white, brownish below knob.

Legs black, joints, trochanters, and tarsi yellow, distal 3 tarsomeres of fore tarsus brown. Posterior face of fore femur covered with microtomentum. Fore basotarsomere with a small spur in male. Mid tibia with row of anterodorsals, 1 anteroventral, 5 subapical bristles. Hind tibia with 1 ventroapical bristle.

Wing brown, veins dark brown, crossveins r-m and dm-cu paler.

Abdomen with tergites and sternites weakly sclerotized. Syntergite 1+2 with posterolateral corners and a thin band between them strongly sclerotized, tergites 3–4 with a thin posterior band moderately sclerotized.

Male postabdomen: Sternite 5 with sides straight, slightly wider at apex, posterior margin shallowly notched, anterior apodeme about as long as external portion, not keeled. Surstylus with distal portion about as broad as long, lateral margins rounded. Postgonite with rounded anterior lobe overlapping with posterior, posterior lobe with serrated margin, truncate apically. Basiphallus expanded medially, without distinct epiphallus, preepiphallus short and transparent. Distiphallus with spinose dorsal tube touching medial sclerite distally, with a single spike-like sclerite laterally, ventral distal sclerite transparent, with pseudotrichae ( Fig. 99 ).

Female unknown.

Type material. Holotype ♂: ECUADOR: Zamora Chinchipe: San Francisco, Res. Biol. San Francisco, trail Canal, 03°58'30"S 79°04'25"W, 25 Feb – 3 Mar 2009, white pan traps, Pollet & De Braekeleer, debu00353733 ( UTPL). Paratypes: same data as holotype but 13 – 18 Feb 2009, yellow pan traps (2 ♂, DEBU, UTPL).

Distribution. Only known from the type locality in southern Ecuador (Fig. 131).

Etymology. The species name is an arbitrary combination of letters derived from the province of the type locality.

FIGURES 103–108. Boreantrops distribution maps. 103) B. albipes ; 104) B. alytothrix ; 105) B. apterus ; 106) B. avignis ; 107) B. costaricensis ; 108) B. durango (circles), B. mexicanus (diamond). Elevation is indicated by grey shading at 500 m intervals.

FIGURES 109–114. Boreantrops distribution maps. 109) B. friburguensis ; 110) B. guatemalensis ; 111) B. hispidus ; 112) B. hondurensis ; 113) B. inbio ; 114) B. longiphallus . Elevation is indicated by grey shading at 500 m intervals.

FIGURES 121–126. Boreantrops distribution maps. 121) B. auranticeps ; 122) B. boliviensis ; 123) B. challabamba ; 124) B. emarginatus ; 125) B. machinator ; 126) B. pollex . Elevation is indicated by grey shading at 500 m intervals.

FIGURES 127–132. Boreantrops distribution maps. 127) B. punctipennis ; 128) B. subemarginatus ; 129) B. talamanca ; 130) B. wayqecha ; 131) B. zamora ; 132) B. cryptopygium . Elevation is indicated by grey shading at 500 m intervals.

Figures

FIGURES 98 – 102. Boreantrops male terminalia. B. wayqecha: 98) phallus, postgonite, and phallapodeme, lateral view; B. zamora: 99) phallus, postgonite, and phallapodeme, lateral view; B. cryptopygium: 100) phallus, postgonite, and phallapodeme, lateral view, 101) right surstylus, interior view, 102) sternite 5.