Dasymutilla fimbriata Manley & Pitts, 2007

MANLEY, DONALD G. & PITTS, JAMES P., 2007, Tropical and Subtropical Velvet Ants of the Genus Dasymutilla Ashmead (Hymenoptera: Mutillidae) with Descriptions of 45 New Species, Zootaxa 1487 (1), pp. 1-128 : 51-52

Dasymutilla fimbriata Manley & Pitts , new species

Holotype male, Mexico, Guerrero, 24 mi S. Iguala, VII-18-68, F. D. Parker and L. A. Stange [ UCDC].

Diagnosis of Male. This species can be recognized by the lack of a pit filled with setae on sternum II coupled with the setal and integumental coloration. The integument of this species is entirely black, except for the second metasomal segment, which is ferruginous. The head, pronotum, and scutellum have grayish setae, while the mesonotum has black setae. The setae, from the apical margin of tergum II, are black, except for some mixed, inconspicuous gray setae apically. Also, the mandible is bidentate, while the clypeus is tridentate. The antennal scrobe is not carinate, and the pygidium possesses an apical fringe of setae.

Description. Male: Length, 10 mm. Head. Black; mandible acute at apex, with inconspicuous inner tooth about 0.25X distance from apex; clypeus flat, tridentate, with median anterior tooth; scape distinctly bicarinate, clothed with pale setae; flagellomere I slightly shorter than remaining segments; antennal scrobe not carinate; front and vertex with coarse contiguous punctures; occipital region very slightly compressed laterally; with conspicuous appressed gray setae.

Mesosoma. Black; anterior margin very slightly emarginate medially, anterior face of emargination glabrous; entirely with coarse contiguous punctures, except metapleuron glabrous; tegula black, posterior half impunctate, with inconspicuous black setae; mesonotum with appressed black setae, remainder of mesosoma with gray setae.

Legs black, clothed with pale setae.

Wings uniformly dusky.

Metasoma. Black, except second segment ferruginous; tergum II with coarse well-separated punctures; pygidium longitudinally rugose, with apical fringe of black setae; sternum I with longitudinal carina nearly entire length of segment; sternum II plain, lacking pit filled with setae; posterolateral angle of last sternite not dentate, with shallow separated punctures, except apical third glabrous, with median apical tooth. Terga I and II with sparse erect gray setae; from apical margin of II, setae black, except for inconspicuous grayish setae interspersed with black setae on apical segments.

Genitalia ( Plate 1H ). Paramere with apex dorsally curved, ventral margin of basal 0.3 densely pubescent, remainder with short sparse setae; cuspis cylindrical with sparse thick long setae throughout, length about 0.6X free length of paramere, densely pubescent basal lobe present; digitus linear, tapering towards apex, slightly knob-like apically, length about 0.5X free length of paramere; penial valve bidentate, teeth separate, anterior tooth larger than posterior tooth.

Female. Unknown.

Paratypes. 3♂, MEXICO, Guerrero, Cañon del Zopilote , 24 mi N Chilpancingo, VII-11-70, E. Fisher and P. Sullivan (1♂, DGMC); Michoacan, 9 mi E Capirio, VII-6-70, E. Fisher and P. Sullivan (1♂, LACM); 28.5 mi S. Nueva Italia, VII-9-85, Woolley and Zolnerowich (1♂, DGMC) .

Distribution. Mexico (Guerrero, Michoacan).

Etymology. From the Latin meaning “fringed,” in reference to the fringe of the last tergum.

Remarks. This species is known only from the male. It superficially resembles D. apicalata (except that the apices of the femora are rounded) and D. monticola (except that it lacks a sternal pit).

Figures

PLATE 1. Male genitalia of Dasymutilla. A. D. atrata. B. D. baylegi. C. D. bimaculata. D. D. boharti. E. D. brazilia. F. D. chamela. G. D. chillcotti. H. D. fimbriata. I. D. guanacaste.