Bocchus pratti, Guglielmino & Olmi & Capradossi & Speranza, 2020

Guglielmino, Adalgisa, Olmi, Massimo, Capradossi, Leonardo & Speranza, Stefano, 2020, Discovery of a new Nearctic species of Bocchus (Hymenoptera: Dryinidae), Zootaxa 4763 (3), pp. 435-438 : 436

Bocchus pratti sp. nov.

( Figs 1–5 )

Type material. Holotype: ♂: USA: California, Inyo Co., China Lake , Naval Weapons Center , Mt Spring Canyon, 35°56.91’N 117°33.40’W, 1220 m, 23.VII–17.IX.2014, Malaise trap near creek with Salix, M.E. Irwin & G. Pratt leg. ( INHS).

Diagnosis. Male of Bocchus with incomplete notauli ( Fig. 1 ); forewing hyaline, without dark transverse bands ( Fig. 1 ); propodeal declivity without longitudinal keels ( Fig. 1 ).

Description of male holotype. Fully winged ( Figs 1, 2 ); length 2.4 mm. Head black, except mandible testaceous with apex darkened; antenna testaceous; mesosoma black; metasoma ( Fig. 4 ) dark brown; legs testaceous-brown, except tarsi and articulations testaceous. Antenna filiform; antennomeres in following proportions: 11:5:7:7:6:6:6:6:5:6. Head ( Fig. 3 ) convex, dull, granulate, except some irregular keels and areolae on vertex, on sides and behind lateral ocelli; frontal line complete; occipital carina complete; POL = 5; OL = 3; OOL = 6; OPL = 3; TL = 5. Mesoscutum ( Fig. 1 ) shiny, punctate, unsculptured among punctures. Notauli incomplete, reaching about 0.5 × length of mesoscutum. Mesoscutellum shiny, unsculptured. Metanotum rugose. Metapectal-propodeal complex dull, reticulate rugose; propodeal declivity reticulate rugose, without longitudinal keels ( Fig. 1 ). Forewing hyaline, without dark transverse bands; 2r-rs&Rs vein with distal part shorter than proximal part (2:5). Genitalia with volsella much shorter than paramere ( Fig. 5 ). Tibial spurs 1/1/2.

Female. Unknown.

Hosts. Unknown.

Etymology. The new species is named after one of the two collectors, Dr. Gordon F. Pratt.

Figures

FIGURE 5. Bocchus pratti sp. nov.: male holotype: genitalia (left half removed). Scale bar 0.08 mm.

FIGURES 1–4. Bocchus pratti sp. nov.: male holotype: 1, 2, head and mesosoma in dorsal (1) and lateral (2) view; 3, head in dorsal view; 4, metasoma in dorsal view. Scale bar 1.3 mm for 1, 1.2 mm for 2, 0.4 mm for 3 and 4.