Numbers
7 spp. in 3 subgenera in our area; ~55 spp. in 5 subgenera worldwide:
Homolobus (Apatia)
1. Homolobus truncator (Say 1828): widespread and widely collected (Canada: AB, BC, MB, NB, NS, ON, QC, SK; United States: AR, AZ, CA, CO, CT, FL, GA, ID, IL, IN, KS, KY, LA, MD, MN, MO, MT, NC, NE, NJ, NM, NV, NY, OR, RI, SC, TN, VA, WY)
Homolobus (Chartolobus)
2. Homolobus infumator (Lyle, 1914): BC, NB, ON, QC; AZ, CA, CO, FL, ME, MN, NM, NV, SC, UT, WA
Homolobus (Oulophus)
3. Homolobus acares Achterberg, 1979: AZ
4. Homolobus antefurcalis Achterberg, 1979: NM
5. Homolobus armatus Achterberg 1979: AZ, NM
6. Homolobus flagitator (Curtis, 1837): AB, BC, NF, ON, QC; AK, CA, CO, NC, NH
7. Homolobus mesoxiphius Achterberg 1979: AZ, NM?
Identification
Vein (RS+M)a (=1-SR+M) straight in Homolobus versus curved in Exasticolus.
Our subgenera are distinguished as follows:
Tarsal claws simple; forewing vein 1A+2A straight; antennae with segments 3-6 lacking an inner ridgel r of hindwing usually absent .... Homolobus (Apatia)
Tarsal claws with tooth-like basal lobe, forewing vein 1A+2A curved; antennae with segments 3-6 with an inner ridge; r of hindwing absent ... Homolobus (Chartolobus)
Tarsal claws with tooth-like basal lobe; forewing vein 1A+2A straight; antennae with segments 3-6 with or without an inner ridge; r of hindwing present ... Homolobus (Oulophus)