Physaloptera sp.

Physaloptera sp.

Infection site: Stomach

Localities: Calcehtok and Homún

Prevalence (%) and mean intensity: Calcehtok 3.2 and 3.2 (1‒7). Homún 3.9 and 2.2 (1‒4.2)

Specimens deposited: CNHE-12321 and NHM 2025.8.13.13

GenBank accession number: PX232575 (28S)

Comments: Based on an adult female and 10 larvae. Mouth laterally flattened with two pseudolabia, each pseudolabia with two cephalic papillae ( Figure 5G View FIGURE 5 ); amphids not observed by light microscopy. Cephalic region with a cuticular dilatation at the base of the pseudolabia, forming a small collarette ( Figures 5C, E View FIGURE 5 ). Conical tail ( Figures 5D, F View FIGURE 5 ). Buccal capsule present. Body total length 8690 and width 420. Total esophagus length 2610: muscular esophagus 300 long, and glandular esophagus 2310 long. Anus 210 from posterior extremity. Larva 1451 ± 214 (1140‒1890) in total length and 120 ± 16 (100‒150) in body width. Larval esophagus 660 ± 52 (600‒720)

long: muscular esophagus 106 ± 38 (65‒140) long and glandular esophagus 148 ± 52 (488‒580) long. Anus 67 ± 12 (50‒75) long.

In Mexico, larvae of the genus Physaloptera have been reported in M. megalophylla from Morelos ( Caspeta-Mandujano et al. 2017). This is the first record of Physaloptera for N. laticaudatus .