Phrosinella (Euhilarella) fulvicornis (Coquillett, 1895)

Gymnoprosopa fulvicornis Coquillett, 1895: 106 [♂ ♀].

Hilarella fulvicornis: Coquillett, 1897: 128 [notes]; Barber, 1915: 187 [habits]; Britton, 1920: 192 [faunistic]; Brimley, 1922: 23 [faunistic]; Strickland, 1938: 175, [faunistic]; Davis and Turner, 1978: 111 [faunistic].

Phrosinella fulvicornis: Allen, 1924: 92 [notes]; 1926: 70 [redescriptions of ♂ ♀, habits, faunistic]; Rowe, 1932 [faunistic]; Krombein, 1936: 93 [habits]; Séguy, 1941: 305 [hosts]; Strandtmann, 1945: 305–308 [habits]; Krombein, 1955: 223 [habits]; Downes, 1965: 938 [catalogue]; Kurczewski and Harris, 1968: 81 [habits]; Miller and Kurczewski, 1973: 365 [habits]; Peckham et al., 1973: 647 [habits]; Miller and Kurczewski, 1975: 82 [habits]; Peckham, 1977: 823 [habits]; Downes, 1985: 271 [taxonomy & faunistic]; Spofford et al., 1989: 257 [hosts]; Pape, 1996: 123 [catalogue]; Pickering, 2011: 1631, 1653, 1657, 1660, 1661, 1685, 1693, 1712, 1713, 1721, 1724, 1725 [habits].

Holotype (male): USA, New Jersey, Avalon . Holotype in USNM .

Distribution: Nearctic: Canada (New Brunswick: Prince Edward I.) 9, USA (Connecticut, Florida, Kansas, Massachusetts, Michigan, Mississippi, New Jersey, New York, Pennsylvania, South Carolina, Texas).

Habits: Larvae develop in ground nests of different sphecid wasps, where they feed at host prey (paralyzed or freshly killed insects), viz:

1. At freshly killed adult flies: Bembix americana (Barber, 1915; Krombein, 1936; Evans, 1966a; Peckham and Peckham, 1898), Bembix spinolae (Allen, 1926; Séguy, 1941; Evans, 1957), Lindenius armaticeps (Miller and Kurczewski, 1973, 1975), Oxybelus bipunctatus (Kurczewski and Harris, 1968; Peckham et al., 1973), O. emarginatus (Krombein and Kurczewski, 1963; Peckham, 1977), O. quadrinotatus (Séguy, 1941), O. subulatus (Peckham et al., 1973; Peckham, 1977), O. uniglumis (Allen, 1926; Strandtmann, 1945; Krombein, 1955; Evans and Lin, 1959; Evans, 1970; Peckham et al., 1973).

2. At freshly killed adult solitary wasps, bees, and honey bees: Philanthus albopilosus (Spofford et al., 1989), P. crabroniformis (Spofford et al., 1989), P. gibbosus (Evans and O’Neil, 1988), P. politus (Evans and O’Neil, 1988), P. pulcher (Evans, 1966b, 1970), P. sanbornii (Evans and O’Neil, 1988), P. solivagus (Ristich, 1956), P. zebratus (Spofford et al., 1989) .

3. At paralyzed nymphs and adults of Orthoptera: Tachysphex acutus (Kurczewski, 1964), Tachysphex mergus (Krombein and Kurczewski, 1963), T. similis, T. tarsatus (Kurczewski, 1964), T. terminatus (Krombein and Kurczewski, 1963; Kurczewski, 1964; Kurczewski and Harris, 1968).

4. At paralyzed or freshly killed nymphs and adults of Homoptera, Cicadoidea: Alysson melleus (Evans, 1966a), Gorytes canaliculatus (Evans, 1966a, 1970, 1973)

5. At freshly killed adult and nymphs of Hemiptera, Homoptera, adult Hymenoptera and Diptera: Lindnerius columbianus (Miller and Kurczewski, 1973; Pickering, 2011).