Apocephalus euryacanthus subseries

Diagnosis. Abdominal segment 6 usually with only one long, black, thick dorsolateral setae (Fig. 6). Venter of segment 6 terminating with large flat posterior surface. Enlarged pair of thornlike setae present ventrolaterally. Sclerotized medioventral, posterior darkening of sternite 6 relatively narrow, with only a few thickened, short, curved setae.

Included species. Apocephalus euryacanthus, A. mexacanthus, and A. paracanthus, all new species.