Valid Names Results

Alacrena Vea & Grimaldi, 2015 (incertae_sedis)

Alacrena Vea & Grimaldi 2015: 43. Type species: Alacrena peculiaris Vea & Grimaldi by original designation . accepted valid name

Systematics: Alacrena seems most similar to Kozarius because of the minute body size, head shape, bulging compound eyes, and the elongate penial sheath. However, they differ by the wing structure (Alacrena has a notch on the apex of the forewing, which is also unique in Coccoidea) and the absence of tubular ducts (present in Kozarius). (Vea & Grimaldi, 2015)
Structure: This genus is peculiar by the combination of the following characters: body minute, head large, compound eyes bulging, each with fewer than 100 ommatidia; antennal segments filiform, with capitate and fleshy setae on apical segment (vs. absent in archaeococcoids with compound eyes); wings hyaline, with a subcostal ridge extending to ¾ wing length, cubital ridge present ending at apical margin with a notch (vs. absent in all Coccoidea); hamulohalteres long and narrow; legs slender, tarsus 1-segmented, tarsal digitule capitate; claws narrow and elongate, almost straight, claw digitules and denticles absent; tubular duct on abdominal tergites absent; genital segment exceptionally elongate. (Vea & Grimaldi, 2015)
Economic Importance: Detailed descriiption and illustration in Vea & Grimaldi, 2015.