Boreantrops calceatus (Duda)

Kits, Joel H. & Marshall, Stephen A., 2015, A revision of Boreantrops Kits & Marshall (Diptera: Sphaeroceridae: Archiborborinae), Zootaxa 3915 (3), pp. 301-355 : 337

Boreantrops calceatus (Duda)

( Fig. 115 )

Archiborborus calceatus Duda 1921: 138

Archiborborus (Procopromyza) calceatus Duda : Comb. Richards 1961 Boreantrops calceatus (Duda) : Comb. Kits & Marshall 2013

Description. Occiput black, frons, face, gena, and prementum dark brown, antenna orange. Mostly covered with microtomentum, frons with shiny spots lateral to ocelli, face with microtomentum below lunule and in dense crescent below antenna. Ocellar bristles anterior to median ocellus. Subvibrissal bristle and anterior genal bristle about 0.5X length of vibrissa.

Thorax black, mostly covered with microtomentum. Proepisternum shiny, anepisternum mostly shiny with microtomentum covering dorsal quarter and posterior third, meron and metapleuron shiny with band of microtomentum between posterior spiracle and hind coxa. Halter white, brown below knob.

Legs black, joints and trochanters dark brown, tarsi yellow, distal 3 tarsomeres of fore tarsus brown. Posterior face of fore femur covered with microtomentum. Hind tibia with 2 ventroapical bristles.

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

Abdomen shriveled, details difficult to see.

Male unknown.

Female not dissected.

Type material. Holotype ♀: COLOMBIA: [Magdalena:] Sierra S. Lorenzo, Ujhelyi ( HNHM; photos examined).

Distribution. Only known from the type locality. The location “Sierra S. Lorenzo” probably refers to Cuchillo de San Lorenzo, an outlying ridge of Sierra Nevada de Santa Marta ( Fig. 115 ).

Comments. This species is very similar to B. wayqecha based on external characters. Given the lack of records between northern Colombia and southern Peru and the typically small ranges of Andean taxa in the genus, it seems prudent to treat these as separate species until topotypic males of B. calceatus can be examined.

Figures

FIGURES 115 – 120. Boreantrops distribution maps. 115) B. masneri (diamonds), B. calceatus (circle); 116) B. oaxacensis; 117) B. peruvianus; 118) B. subfoveolatus; 119) B. suchixtepecensis; 120) B. zacapa. Elevation is indicated by grey shading at 500 m intervals.