Revision of the New World leafhopper tribe Faltalini (Hemiptera: Cicadellidae: Deltocephalinae) and the evolution of brachyptery Author Zahniser, James N. text Zootaxa 2021 2021-04-13 4954 1 1 160 journal article 7262 10.11646/zootaxa.4954.1.1 64eab05b-4539-4be2-bb06-7af4369949e0 1175-5326 4690775 A8D2AA60-562C-4F98-8000-D792F1E40C87 Tenucephalus marginellus DeLong ( Figs. 10 , 71 ) Tenucephalus marginellus DeLong, 1944: 236 [original description, illustration, morphology]; Linnavuori, 1957: 141–142 [description, illustration]; Linnavuori & DeLong, 1976: 30 [illustrated]; Linnavuori & DeLong, 1978: 196 , 211–212 [diagnostic characters; morphology; illustrated]; Zanol, 2006: 100 [catalogue]; Zahniser, 2007 [online catalogue]; Freytag & Gaiani, 2017 [online catalogue] Diagnosis. T. marginellus can be distinguished from other Tenucephalus species by a combination of the typical col- or pattern, male pygofer processes with distinct medial tooth near midlength and with minute marginal teeth at apex, subgenital plates short, broadly rounded at apex, style apophysis apex widened apically, not foot-like, and aedeagus in lateral view very narrow, long, and evenly curved throughout length. Male, 4.2 mm ; female, 4.25–5.0 mm. FIGUIRE 71. Tenucephalus marginellus . (A–B, J) standard views; A & B, female. Material examined. 5♀ , MEXICO : Guerrero , Iguala , 25-X-1941 , DeLong , Caldwell & Plummer [ OSUC ] . Distribution. The species is known from the type locality of Iguala, GRO, Mexico , which is the northernmost record for any species in the genus ( Fig. 10 ). Remarks. T. marginellus is the type species of the genus and it was described and illustrated by DeLong (1944) . Linnavuori & DeLong (1976) provided more detailed illustrations of the male genitalia. Linnavuori & DeLong (1978) provided additional illustrations of the female sternite VII.