The centipede family Anopsobiidae new to North America, with the description of a new genus and species and notes on the Henicopidae of North America and the Anopsobiidae of the Northern Hemisphere (Chilopoda, Lithobiomorpha) Author Shear, William A. text Zootaxa 2018 4422 2 259 283 journal article 29146 10.11646/zootaxa.4422.2.6 47816d99-6645-43ad-a52d-33cc68a6a7c7 1175-5326 1455619 F6658C2B-9681-430A-8975-7B3AE2C233EE Zygethobius ecologus Chamberlin, 1938 Zygethobius ecologus Chamberlin 1938 : 625 ; Mercurio 2010 : 47 Described from a single specimen from Boyer , Oregon . Yellow-brown to chestnut, darker mid-dorsal stripe but perhaps not darker at head and tail; 10 – 11 mm long. Antennae with 24–28 articles, coxosternal teeth 3+3, pores “few in number (!) ”. Produced tergites: 6, 7, 9, 11, 13 ( Chamberlin 1938 ). The antennomere count is low for this genus and along with the unspecified, but “few” coxal pores raises questions about the maturity of the type .