Horse
Besides the horse, there are six other species of genus "Equus" in the Equidae family. These are the ass or donkey, "Equus asinus"; the mountain zebra, "Equus zebra"; plains zebra, "Equus quagga"; Grévy's zebra, "Equus grevyi"; the kiang, "Equus kiang"; and the onager, "Equus hemionus".
Empusidae
Empusidae belong to the superfamily Mantoidea, (“higher” mantises), together with Mantidae and Hymenopodidae [5]. Phylogenetic studies place Empusidae as a sister group to Hymenopodidae. Empusidae and Hymenopodidae are in turn placed as sister groups to all other ambush mantids [3]. There are two subfamilies within Empusidae, Blepharodinae and Empusinae. The Blepharodinae subfamily holds three genera, Blepharodes, Blepharopsis and Idolomantis. The Empusinae subfamily is divided into two tribes, Empusini and Idolomorphini. The Empusini tribe holds five genera, Dilatempusa, Empusa, Gonglyus and Hypsicorypha (see List of mantis genera and species). The Idolomorphini tribe holds the three remaining genera,Hemiempusa, Idolomorpha (see List of mantis genera and species) and Chopardempusa [6]. The latest phylogeny was revised by Svenson et al. 2015 [1].Svenson, Gavin J., et al. "Of flowers and twigs: phylogenetic revision of the plant‐mimicking praying mantises (Mantodea: Empusidae and Hymenopodidae) with a new suprageneric classification." Systematic Entomology 40.4 (2015)