Aleiodes stilpnos Townsend, 2009 Figures 107, 108, 126

Diagnosis.

Body length 9.0 mm; antenna with 65 segments; head and mesosoma color mostly black, contrasting with yellowish orange metasoma; malar space 1.3 × basal width of mandible; ocellus moderate, ocell–ocular distance slightly longer than width of lateral ocellus; occipital carina complete; mesopleuron smooth; apex of hind tibia without comb of flattened setae; propodeum mostly rugose, longitudinal carina complete.

Additional characters.

Last flagellomere with “bottle-nipple” -shaped tip; mesoscutum with carina at posterior margin present only in front of scutellar sulcus; scutellar sulcus with three strong and short carina; fore wing vein 1M slightly curved at base; hind wing vein 2-1A present and relatively long, vein m-cu absent.

Type material examined. (UWIM)

Biology.

Aleiodes stilpnos has been reared from unidentified Noctuidae caterpillar on Polygonum punctatum ( Polygonaceae).

Distribution.

Known only from the type locality, YBS, Napo province, ECUADOR.

Discussion.

Aleiodes stilpnos is the only species treated in this work in the albitibia species-group. The albitibia-group is relatively rarely collected in the Neotropical region, with only two described - Aleiodes stilpnos from Ecuador and Aleiodes fuscipennis ( Szépligeti, 1904) from Peru, Venezuela (Torres and Briceño 2005) and Chile (deposited at UWIM), and at least two undescribed species from Costa Rica. Aleiodes stilpnos differs from other species in Ecuador by the following characters: head, mesosoma and legs mostly black contrasting with light orange metasoma, and wings infuscate; mesopleuron central disc smooth and bare; tarsal claws strongly pectinate; and costate sculpturing on metasomal terga 1-3.