Dryinus dalensi, Olmi & Capradossi & Guglielmino, 2019

Olmi, Massimo, Capradossi, Leonardo & Guglielmino, Adalgisa, 2019, Description of a new species of Dryinus Latreille (Hymenoptera: Dryinidae) from French Guiana, Israel Journal of Entomology (Oxford, England) 49 (1), pp. 41-47 : 42-45

Dryinus dalensi n. sp.

( Figs 1–4)

LSID: urn:lsid:zoobank.org:act:90D5E03A-8C44-41C0-9D5D-530F36841F0E .

Etymology: The species is named after one of the two collectors, Mr Pierre-Henry Dalens.

Diagnosis: Female with head granulate and reticulate rugose ( Figs 1, 2); disc of pronotum rounded, not pointed ( Fig. 1); mesoscutum completely granulate and reticulate rugose, without two longitudinal keels instead of notauli ( Fig. 1); notauli absent ( Fig. 1); metapectal-propodeal complex reticulate rugose, not sculptured by many longitudinal and subparallel keels ( Fig. 1); protarsomere 2 produced into hook; protarsomere 5 about as long as 1 ( Fig. 4); enlarged claw ( Fig. 4) with two very small subapical teeth and one row of lamellae, without distal lamella larger than others.

Description: Female ( Figs 1, 3). Fully winged; length 7.2 mm. Head testaceous, except large part of frons and vertex black; antenna brown, except antennomeres 7–10 and ventral side of scape testaceous; mesosoma black, except lateral margins of pronotum testaceous; metasoma brown; foreleg testaceous, except part of femur club brown; mid- and hindleg testaceous, except part of metatibia and club of femora brown. Antenna clavate; antennomeres in following proportions:13:6:44:2 6:18:12:10:10:8:13; ADOs present in antennomeres 6–10. Head ( Figs 1, 2) flat, dull, granulate and reticulate rugose; eye normally bulging; frontal line complete, reaching clypeus, not divided into two branches directed towards antennal toruli; occipital carina incomplete, present behind and on sides of lateral ocelli, laterally not reaching eyes; temple absent; lateral ocelli touching occipital carina; POL=3; OL=9; OOL=11; greatest breadth of lateral ocelli longer than POL (4:3); anterior ocellus larger than posterior one. Pronotum crossed by anterior transverse impression; anterior collar shiny, sculptured by many longitudinal striae; disc rounded, reticulate rugose; posterior collar absent; pronotal tubercle not reaching tegula. Mesoscutum ( Fig. 1) dull, completely granulate and reticulate rugose, without two longitudinal keels instead of notauli. Notauli absent. Mesoscutellum dull, granulate and reticulate rugose. Metanotum very short, reduced, shiny, unsculptured, except central reticulate rugose area. Disc of metapectal-propodeal complex ( Fig. 1) reticulate rugose, not sculptured by many subparallel longitudinal keels; propodeal declivity reticulate rugose, with two strong longitudinal keels. Metapectal-propodeal complex about as long as propodeal declivity. Forewing ( Fig. 1) with two dark transverse bands; distal part (Rs) of 2r-rs&Rs vein longer than proximal part (2r-rs) (29:12). Protarsomeres in following proportions: 27:5:12:27:45. Protarsomere 2 produced into hook. Enlarged claw ( Fig. 4) much longer than arolium, with two very small subapical teeth and one row of 18 lamellae, without distal lamella larger than others. Protarsomere 5 ( Fig. 4) with two rows of 3+8 lamellae; distal apex with about 13 lamellae. Tibial spurs 1/1/2.

Male. Unknown.

Holotype: ♀ French Guiana: Saint-Laurent-du-Maroni, Maripasoula , Crique Alama /borne 1, 2°14'1.8996"N 54°27'0.3990"W, 16.iii.2015, APA-973-1, Malaise trap, MTK SLAM, E. Poirier & P.H. Dalens ( MNHN).

Hosts: Unknown.