Genus Forficuloecus Conci

Forficuloecus Conci, 1941: 126 . Type species: Philopterus forficula (Piaget, 1871) by original designation.

A brief characterization of this genus as it pertains to the features shared by the lice in this study is as follows. Head as in Fig. 1; broadest at temples, elongated and narrowed anteriorly, terminating in a relatively transparent forceps-like structure; with prominent dorsoanterior plate; without sexually dimorphic antennae. Thorax (Fig. 1) with pronotum having a single lateroposterior seta. Metanotum without central setae and with 18–22 setae distributed across posterior margin. Metasternal plate small, with two setae.

Abdomen (Figs. 1, 4) with divided tergites on II–VIII, variable on IX of male, prominent and complete on IX of female. Counts for tergal setae include all setae on line mediad of spiracles. Sternites weakly developed, with sparse setae; anterior sterna lacking numerous short spiniform setae. Male genitalia (e.g., Figs. 2, 12) with prominent pair of parameres, conspicuous mesosomal complex, and medioposterior unpaired "penis" structure of characteristic shape. Female with large medioposterior subgenital plate (e.g., Figs. 4, 10). For brevity, neither these characters nor those of the species groups will be repeated in the species descriptions.