forewing (removed, and under coverslip)

5.7mm

body
black

legs
orange-brown, with: coxae black; hind femur black in apical half

antennae
black, with: scape, pedicel, F1 & F2 orange-brown

slightly darkened medial band, indistinct posteriorly

blotch apically, posterior to vein Rs

slightly darkened, indistinct medial band, although patchy and not reaching posterior margin of wing

blotch apically, posterior to vein Rs

sparse, long setae on metasoma; arranged in rows, not patches

most of body bears long, silvery setae, but nowhere forming dense patches that obscure the underlying cuticular structure

near spherical: width/length = 1.29

POL/OOL = 1.15

genae: relatively long, 3/4 length of compound eye (in dorsal view); head as wide across genae as across eyes

near square: length/width = 0.87

anterolateral edge of mesoscutum curves posteriorly; corners small, not prominent

length/width: F1 (yellow) = 6.1; F2 (pink) = 7.4
width measured at "approximate midpoint of segment", as per Shaw (1990)

F1 (yellow)/F2 (pink)) = 0.87

M+ Cu1 & Rs infumate; Cu1 very lightly infumate - spectral; 1mcu absent

Rs: basal 1/4 tubular/sclerotised; apical 3/4 strongly infumate, almost reaching wing margin

hamuli: 1 long, 2 short

frons evenly rounded above antennal sockets (pink arrows)

occipital carina basally curving towards mandible (green arrows)

subantennal groove bordered dorsally by a sharp carina (yellow dashed arrows)

base of mandibles with transverse sulcus, flanked by series of longitudinal striae. Naumann (1987) notes this as a feature in male, but not female, M. troglodytes.

shiny, sparse setae, pointed apically

shiny, sparse setae, pointed apically

dorsal surface coarsely areolate

T1 smooth & shiny; T2 & T3 punctate basally, smooth apically