ɪɾ ɪz klˈoʊsli ɹᵻlˈeɪɾᵻd tʊ ˈeɪtʃ. məkdˈɑːnɐldˌiː, ˈeɪtʃ. nˈɛblɪnˌiː, ænd ˈeɪtʃ. pˈɑːɹvə, ænd ˈɔːl θɹˈiː hæv ɪnðə pˈæst bˌɪn kənsˈɪdɚd fˈɔːɹmz ɔːɹ vɚɹˈaɪəɾiz ʌv ˈeɪtʃ. tˈæɾeɪ.
It is closely related to H. macdonaldae, H. neblinae, and H. parva, and all three have in the past been considered forms or varieties of H. tatei.