Dasymutilla arenerronea Bradley 1916
Creators: name: Williams, Kevin A.
name: Manley, Donald G.
name: Deyrup, Mark
name: Dohlen, Carol Von
name: Pitts, James P.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Dasymutilla
Dasymutilla arenerronea

description: Dasymutilla arenerronea Bradley 1916, stat. resurr.
(Figs 5, 10, 25, 40–43)
Dasymutilla (Dasymutilla) arenerronea Bradley, 1916. Trans. Amer. Ent. Soc. 42: 324. Holotype, Ƥ: St. Petersburg, Florida, August 12, 1910, J. C. Bradley (CUIC Type No. 115.1).
Dasymutilla chattahoochei Bradley: Mickel 1928. U. S. Nat. Mus. Bull. 143: 186, Ƥ.
Dasymutilla chattahoochei Bradley: Krombein 1954. Trans. Amer. Ent. Soc. 80: 9, 3 Ƥ.
Diagnosis. FEMALE. The female of this species can be separated from other Dasymutilla by the following combination of characters: the lateral margin of the head behind the eye gradually curves inward, leading into tubercles on the postero-lateral margin of the head (Fig. 5); there are no transverse carinae anterior to the scutellar scale; the propodeum is covered with numerous small tubercles dorsally; the lateral face of the propodeum has dense silver setae that obscure the punctation; and the apical fringe of T2 is mostly silver, being interrupted by a small medial spot of black setae (Fig. 10). MALE. The male of this species can be separated from other Dasymutilla by the following combination of characters: there are silver setae on the apical terga, there is no setafilled pit on S2, and the cuspis is less than 0.7x the free paramere length (Figs 40, 41).
Description of male genitalia (Figs 40–43). Free length of paramere dorsally curved apically, with ventral brush of long dense setae basally, remainder having scattered short sparse setae; paramere laterally kinked in basal 0.3, apices slightly divergent. Cuspis roughly cylindrical, ~0.6 × free-length of paramere, having sparse short setae throughout. Densely setose basal lobe present. Digitus laterally curved internally, tapering slightly at apex, asetose, ~0.4 × free-length of paramere. Penial valve emarginated anterodorsally, ventral margin bidentate apically, teeth separated, unidentate medially; having longitudinal row of setae at apex and subapically on external margin.
Length. Females: 4.5–9.5 mm; males: 5–8 mm.
Host. Unknown.
Distribution. This species is currently known only from Florida, but because specimens have been found in the northeastern Clay and Bradford Counties, this species potentially could occur north into Georgia and South Carolina.
Material examined. Type material. Holotype of D. arenerronea, USA: Florida: [Pinellas Co.], St. Petersburg, 1Ƥ, 12.VIII.1910, J. C. Bradley (CUIC Type No. 115.1). Other material. USA: Florida: Bradford Co., unknown locality, 13, 1.V.1959, H.V. Weems (FSCA); Citrus Co., 12 mi NW Brooksville, 23 1Ƥ, 11.V.2002, M. Deyrup & J. Mosely (ABSC); Clay Co.: Keystone Heights, 2Ƥ, 16.VI.1991, H.K. Dozier (FSCA); unknown locality, 13, 14.V.1960, H.V. Weems (FSCA); DeSoto Co., Arcadia, 3Ƥ 13, 2 –3.IV.1953, K.V. Krombein (ABSC); Highlands Co.: Archbold Biological Station, Lake Placid, 1Ƥ, 7.VI.1984, D. Richman (ABSC); Highlands Hammock State Park, 1Ƥ, 2.VIII.1969, Heinrich (ZMUC); Hillsborough Co., Tampa Rud, 1Ƥ, 6.VI.1949, D.J. Downs (FSCA); Orange Co., Orlando: 1Ƥ, 4.IV.1953, K.V. Krombein (ABSC); 13, 3.IV.1954, K.V. Krombein (ABSC); University of Central Florida campus: 1Ƥ, 30.VII.1990, S.M. Fullerton (UCFC); 23, 17.IV.1991, S.M. Fullerton (UCFC); Walt Disney World, 13, 5 –12.V.1996, Z. Prusak & S.M. Fullerton (UCFC); Osceola Co., Kissimmee St. Cloud, 13, 12.VI.2001, TNC staff (UCFC); Palm Beach Co., Lion Country Safari: 13, 1.VI.1989, M. Deyrup (ABSC); Sarasota Co., MCC – Venice Campus: 13, 17.III.1997, K.J. Maharay & S.M. Fullerton (UCFC); 13, 28.IV.1997, K.J. Maharay & S.M. Fullerton (EMUS); County unknown, 1Ƥ, 16.V.1956, E. Suenson (ZMUC).
Remarks. Mickel (1928) synonymized this species with D. chattahoochei, because he considered the holotypes of the two species to be identical. He stated that the difference in head shape (Figs 5, 8) was inadequate to support species-distinction, and species identification using this character would differ based on specimen orientation. Although the distinction in head shape is subtle and difficult to recognize, we found it to be consistent for separating these species. Two additional characters separate D. arenneronea from D. chattahoochei, the lateral propodeal setae and the apical fringe of T2, but these are also difficult to use. Even so, we resurrect D. arenerronea, because male morphology and DNA sequences (Fig. 73) clearly differentiate these insects from D. macilenta (which now includes D. chattahoochei).
Males of D. arenerronea were initially associated with D. chattahoochei by Krombein (1954) based on misidentified specimens. Krombein (1954) provided a detailed description for these males, except the genitalia, which are described above.
This species is clearly a member of the D. monticola species-group based on morphology and phylogenetic position (Fig. 72), even though the female was initially placed into the D. quadriguttata species-group. Krombein (1954) cited the D. arenneronea sex association as the second example of the combination of these two speciesgroups, after D. canella from the D. monticola species-group was associated with D. rugulosa from the D. quadriguttata species-group (Krombein, 1951).
description: Published as part of Williams, Kevin A., Manley, Donald G., Deyrup, Mark, Dohlen, Carol Von & Pitts, James P., 2012, Systematic review of the Dasymutilla monticola species-group (Hymenoptera: Mutillidae): using phylogenetics to address species-group placement and sex associations, pp. 1-29 in Zootaxa 3554 on page 10, DOI: 10.5281/zenodo.213054