Recharacterization of the genus Eulaemobothrion Ewing, 1929 (Amblycera, Laemobothriidae).

CICCHINO, A. C.; VALIM, M. P.

Park City, Utah

Congreso; 5th International Conference on Phthiraptera; 2014

University of Utah

·Laemobothrion and Eulaemobothrion were treated as genera or' subgenera of Laemobothrion. We studied imaginal and preimaginal stages of most species included in both taxa, we justify that both genera must be retained as independent based on morphological characters. Major characteristics in all stages are: ensiform setae on anterior margin of forehead present, which is always concave; presence of hyaline area lying between sternites 11-111; ventro-lateral pc;trt of the. posterior tips of tibiae II and III with a noticeable enlargement; only 1-2 long pleural setae on I-VII; tergites I-VII with no more than 6 short to minute setae. In males parameranarrow and long with its tips inwardly curved, with a well defined and pigmented paired genital sclerite; in females the postero-lateral angles of segment IX+~ with a conspicuous spine-like projection, the whole terminalia is posteriorly tapered as an adaptive structure result for egg laying on primary and secondary remiges or its coverts. Regard the eggs, the opercular and amphora! surfaces are covered by strongly impressed sub-hexagonal mesh, and enveloped by moderated amount of spumaline with in any case reach the amphora! callus. Based on these amount of differences is difficult to explain the reasons to retain these two taxa merged. With this, other generic names deserve to be re-studied in order to elucidatetrue taxonomic position (eg. Plegadilymantikos, Ornithopeplechthos) based on anholomorphological approach as presented here.