Dryinus rogeriae, Martins & Perioto, 2021

Martins, André & Perioto, Nelson W., 2021, One new species and one new record of Dryinus Latreille, 1804 (Hymenoptera: Dryinidae) from Uruguay, Revista Chilena de Entomología (Rev. Chil. Entomol.) 47 (2), pp. 243-252 : 245-246

publication ID	https://doi.org/ 10.35249/rche.47.2.21.11
persistent identifier	https://treatment.plazi.org/id/074287FC-F375-FF93-FDD5-FEECFBD4FAFF
treatment provided by	Felipe
scientific name	Dryinus rogeriae
status	sp. nov.

Treatment

Dryinus rogeriae nov. sp.

( Figs. 1 View Figure 1 , 5 View Figure 5 )

Diagnosis. Dryinus rogeriae nov. sp. is unique among the other neotropical species of Dryinus since it has the following combination of characters: body predominantly black, except the mandible, clypeus, part of face and legs, testaceous; scape, pedicel, and part of the 1st flagellomere yellow-testaceous; pronotum red-testaceous. Head rugose, frontal line, and occipital carina incomplete. POL about twice as long as OPL, OL about twice as long as POL. Pronotum with many irregular carinae around the disc; mesoscutum reticulate-rugose; notauli absent. Fore wing with two dark transverse bands. Enlarged claw with one row with eight setae modified in lamellae and one subapical tooth.

Description. Holotype female ( Figs. 1A–1E View Figure 1 ); fully winged, body length 7.0 mm. Color. Head predominantly black, except anterior part of face, mandible and clypeus testaceous; ventral region of head partly testaceous; antenna ( Figs. 1A–1C View Figure 1 ) brown; scape, pedicel, and proximal part of 1 st flagellomere yellow testaceous; flagellomeres 5–8 testaceous. Pronotum ( Fig. 1D View Figure 1 ) red-testaceous; tibiae and tarsi testaceous, femora predominantly red, with some regions black; fore wing ( Fig. 1A View Figure 1 ) with two dark transverse bands; rest of mesosoma ( Figs. 1A, 1C View Figure 1 ) black; metasomal tergum I and II testaceous, last tergum black and with creamy yellow transversal bands ( Fig. 1A View Figure 1 ). Pubescence. Face and gena ( Figs. 1C–1D View Figure 1 ) with dense and short setae, vertex with sparse setae; pronotum ( Fig. 1D View Figure 1 ) with dense and short setae on the posterior surface; mesoscutum ( Fig. 1D View Figure 1 ) with sparse and short setae; mesoscutellum and metanotum ( Fig. 1D View Figure 1 ) with fine, short, and sparse setae; legs ( Fig. 1A View Figure 1 ) with fine setae; propodeum ( Fig. 1A View Figure 1 ) with short and dense setae. Integumental sculpture. Head ( Figs. 1B–1C View Figure 1 ) rugose, frontal line incomplete; occipital carina present only on the vertex ( Fig. 1C View Figure 1 ); gena partially with many irregular carinae, pronotum with many irregular carinae around the disc ( Fig. 1D View Figure 1 ); mesoscutum reticulate-rugose, notauli absent; mesoscutellum reticulate-rugose and with a straight groove on the anterior surface, metanotum rugose; mesopleura and metapleura rugose; and propodeum reticulate-rugose ( Figs. 1A, 1D View Figure 1 ); the posterior surface of propodeum with two incomplete longitudinal carinae. Structure and proportions. Antennomeres in the following proportions: 23:8:45:20:15:13:11:9:9:13; ocellar ratio: OL= 11, POL= 6, OOL= 20, OPL= 3 and TL= 0. Fore wing with 2r-rs little smaller than 3Rs&4Rs (34:35); protarsomeres in the following proportions: 30:7:12:26:45; enlarged claw with a row of eight lamellae ( Fig. 1E View Figure 1 ) and apex with a broad tooth; 5 th protarsomere with two rows of 46 lamellae and many long setae ( Fig. 1E View Figure 1 ); dorsal surface of the propodeum shorter than the posterior one (50: 65); tibial spurs 1/1/2.

Male. Unknown.

Host. Unknown.

Remarks. In the key to the females of the Neotropical Dryinus proposed by Olmi & Virla

(2014), Dryinus rogeriae nov. sp. belongs to group 2, termed “ruficauda”, since its members have an enlarged claw ( Figs. 1E View Figure 1 , 2C View Figure 2 ) much longer than the arolium, with one subapical tooth and absent notauli ( Fig. 1D View Figure 1 ). In the identification key for the species of group 2, D. rogeriae nov. sp. is close to D. tuparrensis ( Figs. 2A–2D View Figure 2 ) and they share features as a rugose head ( Figs. 1B View Figure 1 , 2B View Figure 2 ), occipital carina ( Fig. 1C View Figure 1 ) present only in the vertex, mesosoma ( Figs. 1A View Figure 1 , 2A View Figure 2 ) predominantly black, mesoscutum ( Fig. 1D View Figure 1 ) reticulate-rugose, notauli absent; propodeum with two incompletes longitudinal carinae in the posterior surface and metasoma with creamy yellow transversal bands. D. rogeriae nov. sp. differs from D. tuparrensis by the predominantly black head ( Figs. 1A–1C View Figure 1 ) (vs. red-testaceous in D. tuparrensis ( Figs. 2A–2B View Figure 2 )); antenna with apical part of flagellomere 3 and 4–5 darkened ( Fig. 1A View Figure 1 ) (vs. testaceous ( Fig. 2B View Figure 2 )); pronotum red-testaceous ( Figs. 1A, 1D View Figure 1 ) (vs. predominantly black ( Fig. 2A View Figure 2 )); fore wing with two dark and complete transverse bands ( Fig. 2A View Figure 2 ) (vs. with two basal bands very small ( Fig. 1A View Figure 1 )); metasoma with two first terga testaceous and others black with transverse yellow band (vs. black with transverse yellow bands ( Fig. 1A View Figure 1 )); frontal line incomplete (vs. frontal line complete); both species have a rugose head ( Figs. 1B–1C View Figure 1 , 2B–2C View Figure 2 ), occipital carina ( Figs. 1C View Figure 1 , 2B View Figure 2 ) present only in the vertex, notauli absent ( Figs. 1D View Figure 1 , 2B View Figure 2 ) and propodeum with two incomplete longitudinal carinae in the posterior surface.

Etymology. The species name is a feminine noun in the genitive case. It is a privilege to name this new species after Dr. Rogéria Inês Rosa Lara, entomologist at the Instituto Biológico, Ribeirão Preto, São Paulo, Brazil, for her friendship and dedication in the study of the Neotropical Neuroptera.

Distribution. Uruguay (Department of Rocha) ( Fig. 5 View Figure 5 ).

Type material. Holotype female, labeled “ Uruguay, Rocha, Castillos \ Cardoso , campo natural / 34°05’26.8”S, 53°52’14.4”W \ arm. Malaise \ 26 / II /2015 \ E. Castiglioni e eq., cols.” [ MZUSP]. GoogleMaps

The key to females of neotropical Dryinus from group 2 “ruficauda” proposed by Olmi

& Virla (2014) was modified to accommodate the new species described herein:

21. Head with vertex excavated; OL about twice as long as or shorter as POL ……....… 21a

– Head with vertex plane, not excavated; OL as long as or slightly longer than POL.… 22

21a. Head ( Figs. 2A–2B View Figure 2 ) red-testaceous; antenna ( Figs. 2A–2B View Figure 2 ) with 1 st flagellomere browntestaceous; OL about twice as long as POL; pronotum black, except lateral margins testaceous; fore wing with two dark tranversal bands, the basal being incomplete ......... .........................................................................................................………. D. tuparrensis Olmi

– Head ( Fig. 1B View Figure 1 ) predominantly black, except anterior part of face, mandible, and clypeus, testaceous; antenna ( Figs. 1A–1C View Figure 1 ) with part of 1 st flagellomere yellow-testaceous; OL about twice as shorter as POL; pronotum red-testaceous; fore wing with two complete dark tranversal bands.…........................................................................… D. rogeriae nov. sp.