Ambloplisus ornatus ( Cresson, 1868 )

Dal Pos, Davide, Heilman, Victoria & Welter-Schultes, Francisco, 2022, Platylabini (Hymenoptera: Ichneumonidae: Ichneumoninae) of the south-eastern United States: new distributional data, taxonomic notes, illustrated keys, and an annotated catalogue of the genera and species, Journal of Natural History 56, pp. 1869-1938 : 1879-1880

Ambloplisus ornatus ( Cresson, 1868)

( Figures 5 , 6 , 37a , 38a , 39a , 40a–c )

Hoplismenus ornatus Cresson, 1868: 92 (descr.); Cresson 1916: 47 (type).

? Amblyteles ornatus Cresson 1877: 194 (key, descr., notes).

Amblyteles ornatus Cresson 1887: 190 (cat.); Dalla Torre 1902: 828 (cat.); Cushman 1928: 924 (cat., notes); Nason 1905: 149 (distr.).

Hoplismenus ovatus [sic]; Berthoumieu 1904: 30 (cat., distr., incorrect subsequent spelling).

Thaumatoteles ornatus Hopper 1938: 105 (descr.); Townes 1944: 314 (cat, syn.); Townes and Townes 1951: 281 (distr.; cat.).

Ambloplisus ornatus Heinrich 1959: 216 (notes); Heinrich 1962b: 790 (descr., distr., neallotype designation, key); Peck 1964: 918 (index); Heinrich 1977: 277 (descr., distr., key); Carlson 1979: 547 (cat., distr., notes); Yu and Horstmann 1997: 672 (cat.); Tereshkin 2009: 1486, 1589 (descr., fig.); Tereshkin 2013: 1235 (fig.); Yu et al. 2016 (cat.).

Original type series

Holotype ♀, by monotypy ( ANSP). Cresson (1868, p. 92) clearly stated that the description was based on only ‘ one ♀ specimen’ from New York. This specimen can be referred to as the holotype designated by monotypy ( ICZN 1999, Article 73.1.2).

Type locality

United States of America, New York.

Type specimens examined ( Figures 38a , 40a–c )

Holotype: ‘[White label] N. Y. // [White label] ornatus /Cres. // [Red label] TYPE No./ 1244 – ’ (specimen examined).

Material examined

UNITED STATES OF AMERICA, FLORIDA: Alachua Co ., Gainesville, Florida Rock Cr ., M. Trap 2, 09–15 May 1983, leg . Gupta, 1♀ ( FSCA); idem, 01–08 April 1983, 1♀ ( FSCA); idem, May 1984, 1♀ ( FSCA); idem, 24-30 June 1983, 2♀♀ ( FSCA); Orange Co ., UCF MacKay Tract, Sawgrass Marsh/Red Maple, 29 November 2012, leg . S . McCarthy & S.M . Fullerton, 1♀ ( UCFC); Seminole Co, Oviedo, Bayhead /LLP Scrubby, Flatwoods Transition, Malaise trap, 28.6219°N, 81.1736°W, 22 May 2011, leg . Gochnour, 1♀ ( UCFC); idem, 12 June 2011, 1♀ ( UCFC); idem, 03 July 2021, 1♀ ( UCFC) ; GEORGIA: Athens, Bot . Garden M.Tr., 04 May 1983, leg . Gupta, 4♂♂ ( FSCA); Cobb Co ., Smyrna, M. Trap 3, leg . Gupta, 1♀ ( FSCA) ; MASSACHUSETTS: Groton, Middlesex Co ., 21 July 2011, det . B . Carlson, 1♂ (BugGuide); idem, 22 July 2011, 2♂ (BugGuide); idem, 29 July 2011, 1♀ (BugGuide); 30 July 2011, 1♂ ( BugGuide ) .

Updated distribution ( Figure 6 )

MEXICO ( Berthoumieu 1904); UNITED STATES OF AMERICA: Florida ( Heinrich 1977), Georgia (new state record), Iowa ( Heinrich 1962b, wrongly mentioned as Idaho, see Comments), Illinois ( Nason 1905), Maryland ( Townes and Townes 1951), Massachusetts ( Carlson 2011), New York ( Cresson 1868), North Carolina ( Heinrich 1962b).

Host

Unknown.

Male

The first description of a male was provided by Heinrich (1962b, p. 790), who referred to the specimen as the neallotype and stated that the specimen was tentatively placed under Ambloplisus ornatus because of the colour variation between the two sexes. The association was later confirmed by Heinrich (1977, p. 277), who collected on the ‘same small bush’ first the female and subsequently thereafter the male.

Comments

Townes and Townes (1951, p. 281) reported the species for Maryland (not recorded by Yu et al. 2016), New York, and New Jersey. However, the New Jersey record belongs to Tropicolabus foxi ( Davis, 1898) , a species that was synonymised under Ambloplisus ornatus by Townes (1944, p. 314) (as Platylabus foxi ), and later resurrected by Heinrich (1959, p. 216), who placed it under the newly described genus Tropicolabus Heinrich (see below). Therefore, Ambloplisus ornatus is not known for New Jersey.

The records from Massachusetts and Ohio are from BugGuide and identified by Carlson (2011) as Ambloplisus ornatus . However, these have not been recorded in any paper or catalogue (see Yu et al. 2016). Another record missing from Yu et al. (2016) is the one from Illinois by Nason (1905, p. 149) whose specimens were identified by the Ichneumonid expert G.C. Davis.

Heinrich (1962b, p. 790) reported a specimen in the USNM from Idaho, but as noted by Carlson (1979, p. 547), who analysed the same specimen, the actual locality is in Iowa. Unfortunately, Yu et al. (2016) listed Idaho as a locality for the species, without mentioning Iowa.

Berthoumieu (1904, p. 30) reported the species ‘ Hoplismenus ovatus Cress’. for Mexico. We are not aware of Cresson having used the name ovatus for a species in this insect group, and all other circumstances suggest that Berthomieu must have had H. ornatus in mind. Therefore, and in agreement with Townes (1944, p. 314), we regard H. ovatus as an incorrect subsequent spelling of Hoplismenus ornatus Cresson, 1868 ( ICZN 1999, Article 33.3). Yu et al. (2016) failed to report Berthoumieu (1904) and Mexico was not included in the distribution of the species.

Figures

Figure 5. Ambloplisus ornatus (Cresson, 1868), ♀. a) Habitus, lateral view. b) Head, frontal view. c) Head and mesosoma, dorsal view. d) Propodeum and metasoma, dorsal view.

Figure 6. Ambloplisus ornatus (Cresson, 1868), distributional map: known records (in blue) and newly recorded state (in yellow).

Figure 37. Propodeum and metasoma, dorso-lateral view. a) Ambloplisus ornatus (Cresson, 1868). b) Tropicolabus foxi (Davis, 1898).

Figure 38. Face, frontal view. a) Ambloplisus ornatus (Cresson, 1868), holotype ♀. b) Tropicolabus foxi (Davis, 1898), holotype ♀.

Figure 39. Head, dorsal view. a) Ambloplisus ornatus (Cresson, 1868), ♀. b) Tropicolabus foxi (Davis, 1898), ♀.

Figure 40. Comparison of holotypes of Ambloplisus ornatus (Cresson, 1868) and Tropicolabus foxi (Davis, 1898). a) Ambloplisus ornatus (Cresson, 1868), habitus, dorsal view. b) Ambloplisus ornatus (Cresson, 1868), habitus, lateral view. c) Ambloplisus ornatus (Cresson, 1868), labels. d) Tropicolabis foxi (Davis, 1898), habitus, dorsal view. e) Tropicolabus foxi (Davis, 1898), habitus, lateral view. f) Tropicolabis foxi (Davis, 1898), labels.