A new species of Halictophagus (Insecta: Strepsiptera: Halictophagidae) from Texas, and a checklist of Strepsiptera from the United States and Canada Author Kathirithamby, Jeyaraney Author Taylor, Steven J. text Zootaxa 2005 1056 1 18 journal article 10.5281/zenodo.170109 3b30e136-a327-4637-872a-82693f2775e3 1175­5326 170109 Key to the families of adult male Strepsiptera found in USA and Canada 1. Mandibles absent..................................................................................... Corioxenidae – Mandibles present ........................................................................................................ 2 2. Legs with 2 tarsomeres ............................................................................... Elenchidae – Legs with 3–4 tarsomeres ............................................................................................. 4 3. Legs with 3 tarsomeres; antennae 6–7 segmented with lateral flabella on 3rd, 3rd–4th, 3rd–6th, or 3rd–7th segments ................................................................... Halictophagidae – Legswith4 tarsomeres;antennae4–7segmentedwithlateralflabellumon3rd segmentonly ....................................................................................................................................... 5 4. Antennae 4–6 segmented with broad flat flabella; metathorax with spoon­shaped subalar sclerite ................................................................................................... Stylopidae – Antennae 7 segmented with narrow, rounded segments; metathorax without spoonshaped subalar sclerite........................................................................ Myrmecolacidae