Leptomantispa Hoffman, 2002: 264; Ohl 2004: 176 (cat.). Type species: Mantispilla pulchella Banks, 1912: 179.
Diagnosis: Pronotum completely covered by setae (best seen in lateral view), setae arising directly from the surface. Male ectoproct with ventromedial lobe not sclerotized. Gonarcal membrane without scales. Male with pores at tergites IV and V (most specimens with pores at tergite III, too). Spermatheca widening distally.
Hoffman (2002) stated that there were eight species in the genus but listed only three. L. pulchella (Banks, 1912) is found from Canada to Costa Rica (Cannings & Cannings 2006), remaing two species (L. chaos Hoffman, 2002 and L. nymphe Hoffman, 2002) are Neotropical and found in Brazil. Machado & Rafael (2007) described a fourth species of the genus, L. catarinae, until now found only in Brazil. More two species are treated here: L. ariasi (Penny, 1982) n. comb and L. axillaris (Navás, 1908) n. comb.