Euscelidia vallis Dikow, 2003  

Head: black; face yellow pruinose, silver pruinose around mystax, facial gibbosity indistinct, mystax white, many macrosetae; proboscis and maxillary palpi brownish-black, setae white; ocellar tubercle apruinose; occiput silver pruinose (dorsal part less pruinose with some apruinose spots), setae white and yellowish
Antennae: scape brown, white setae ventrally; pedicel brown, brown setae ventrally and dorsally, white pruinose; postpedicel brown, white pruinose; apical 'seta-like' sensory element brown
Thorax: black; postpronotal peg large, silver pruinose; scutum predominantly brown pruinose, lateral and posterior margins silver pruinose, 2 lateral stripes, not reaching anterior and posterior margins, slightly apruinose, few short white setae on margins; macrosetae: 1 white notopeural seta, 1 black supra-alar seta, 1 black pal; scutellar silver pruinose, discal scutellar setae and scutellar setae short, brown
Legs: yellow to brown; prothoracic and mesothoracic femora yellow, metathoracic femora pale yellow proximally, remaining part brown, clubbed, club with brown stripe laterally, setae white; prothoracic tibiae yellow, mesothoracic and metathoracic tibiae brown, pale yellow stripe not reaching tip on metathoracic tibiae anteriorly; first tarsomere in proximal 2/3 pale yellow, brown distad, remaining tarsomere brown, setae black; empodium minute
Wings: densely covered with microtrichiae, cell br with only few microtrichiae; pterostigma distinct, brown; discal cell terminating in 2 veins; halteres light brown
Abdomen: black; tergites brown pruinose dorsally, grey pruinose laterally, T1 with long white and brown setae laterally, white and brown setae on remaining T, sternites grey pruinose
Male terminalia: surstylus pointed distally, lobe ventrally; hypandrium bent upwards, divided into 2 lobes; dorsal aedeagal sheath open, extending gonopore, lateral processes of dorsal aedeagal sheath rounded; lateral apodeme simple.