Paraleucopis bispinosa Wheeler & Sinclair,

Wheeler, Terry A. & Sinclair, Bradley J., 2019, Systematics of Paraleucopis Malloch with proposal of Paraleucopidae, a new family of acalyptrate Diptera, Zootaxa 4668 (3), pp. 301-328: 308-309

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Paraleucopis bispinosa Wheeler & Sinclair

sp. nov.

Paraleucopis bispinosa Wheeler & Sinclair  , sp. nov.

( Figs 15View FIGURES 15–18, 20–22View FIGURES 19–22, 24View FIGURES 23–26, 27View FIGURES 27, 28, 29View FIGURE 29)

Type material. HOLOTYPE Ƌ, labelled: “ Socos / Coquimbo, CHILE / 1.XI.1957 / L.E. Peña ”; “ HOLOTYPE / Paraleucopis  / bispinosa/ Wheeler & Sinclair [red label]” ( CNC)  . PARATYPES: Chile: Coquimbo, Rivadavia , 29.x.1957, L.E. Peña (2 ♀, CNC)  ; Linares, Linares , xii.1952, L.E. Peña (1 Ƌ, CNC)  ; Atacama, 20 km S Vallenar , 13.x.1969, Rozen & Peña (1 Ƌ, AMNH)  ; 5 mi. N Illapel , 30.xi.1950, Ross & Michelbacher (1 Ƌ, 1 ♀, CAS)  ; 50 km S La Serena , 1.xii.1950, Ross & Michelbacher (4 Ƌ, 1 ♀, CAS)  .

Recognition. This species is characterized by fronto-orbital setae distinct; antenna yellow; face mostly clothed in pruinescence, not extended beneath eye anteriorly; parafacial pruinose; legs dark; hind femur with 2 anteroventral preapical setae; surstylus triangular, arched posteriorly, strongly tapered to narrow apex.

Description. Frons dark brown without pale band above antennae; gena dark. Face mostly clothed in pruinescence, not extended beneath eye anteriorly; parafacial pruinose. Fronto-orbital setae distinct ( Fig. 15View FIGURES 15–18). Antenna yellow; antennal bases separated by length of postpedicel. Clypeus shiny.

Katepisternum with several stout, dark ventral setae, anterior to mid coxa; short setulae on anterior half. Scutum appearing smooth and shiny ( Fig. 27View FIGURES 27, 28); setulae not arising from tubercles. Legs with dark femora and mid and hind tibiae; fore tibia pale brown; tarsomeres 1 and 2 pale, increasingly darker apically. Mid tibia with dark ventroapical seta, one-quarter length of tarsomere 1. Hind femur usually with 2 spine-like preapical anteroventral setae ( Fig. 24View FIGURES 23–26).

Male postabdomen ( Figs 21, 22View FIGURES 19–22): epandrium rounded, evenly sclerotized, setose on posterior half; not extended ventrally. Hypandrium broad, with 1 anterior seta; with rounded postgonite apically. Surstylus long, arched posteriorly, strongly tapered to narrow apex; apex arched posteromedially; setae confined mostly to posterior margin. Distiphallus tapered to narrow apex. Cercus short, narrow, slightly longer than dorsal length of epandrium; apex rounded.

Female postabdomen: tergite 6 ( Fig. 20View FIGURES 19–22) broadly bilobed anteriorly, slightly narrowed medially with nearly straight posterior margin; posterior corners slightly expanded with pair of long setae, more than half length of tergite; spermatheca not examined.

Distribution. This species is known from several localities in Chile ( Fig. 29View FIGURE 29) in the Coquimban and Santiagan provinces of the Central Chilean sub-region (Morrone 2015).

Etymology. The species name refers to the two anteroventral spine-like setae on the hind femur.


Canadian National Collection of Insects, Arachnids, and Nematodes


American Museum of Natural History


California Academy of Sciences