alexanderi Wirth, 1965b: 219 (female). Type locality: USA, Massachusetts, Bedford. HT F (USNM). Distr.- Eastern North America (Ontarío and Massachesetts to Florida), Mexico (Veracruz), Belize, El Salvador, Argentina (Misiones: Posadas, 27°24'26.66"S, 55°57'29.29"W). Refs.: Spinelli & Grogan, 1987: 10.

Parabezzia balseiroi is compared with P. alexanderi Wirth, which was also herein studied and photographed from nearctic specimens.

As it was pointed out by Spinelli & Grogan (1987), adults of P. balseroi and P. alexanderi are nearly identical except for the length of tarsal claws which are equal on fore and mid legs in P. balseiroi, and unequal in P. alexanderi. The strong similarity of the adults of both species is correlated with the slight differences showed by their pupae. The following are the differences observed in the pupa of P. alexanderi when it was compared with P. balseiroi:
* The lateral margins of the operculum are not as raised as in P. balseiroi, and the anteromarginal tubercle is less developed (Figs. 5, 12).
* The respiratory organ bears 14-16 apical opening pores (Fig. 10).
* The dorsomedial setae are represented by one seta and one pore (Fig. 19).
* The dorsolateral seta is stouter and shorter, peg-like (Fig. 19).
* The ventromedian seta is minute, and the male shows an additional pore (Figs. 11, 21).
* The first abdominal segment has a single seta on its anterior margin (Fig. 22).
* The apicolateral processes have a narrow base, are subparalell, and bear two pores at their mid portion (Figs. 6, 13).