Baeoneurella benefica (Gahan)

Popovici, Ovidiu Alin, Masner, Lubomir & Polaszek, Andrew, 2019, A revision of the European species of Baeoneurella Dodd (Hymenoptera: Scelionidae), Journal of Natural History (J. Nat. Hist.) 52 (43 - 44), pp. 2745-2794: 2761-2770

publication ID

http://doi.org/ 10.1080/00222933.2018.1546913

publication LSID

lsid:zoobank.org:pub:3F3ECAB2-FBF9-40BB-8447-06CEF1073038

persistent identifier

http://treatment.plazi.org/id/03835F40-FFD9-7F6A-CAAD-FA08FCF8FE60

treatment provided by

Felipe

scientific name

Baeoneurella benefica (Gahan)
status

 

Baeoneurella benefica (Gahan)  

( Figures 4a – f View Figure 4 , 5a – f View Figure 5 )

Eumicrosoma benefica Gahan, 1913: 442   . Original description; Eumicrosoma beneficum: Masner and Muesebeck, 1968: 60   . Type information, emendation; Eumicrosoma   benefi- cum: Kozlov, 1978: 646. Description; Eumicrosoma beneficum: Kozlov and Kononova, 1983: 314   ; Eumicrosoma beneficum: Fabritius and Andriescu, 1985: 128   . Diagnosis,

keyed; Eumicrosoma beneficum: Johnson, 1992: 561   . Catalogued, type information; Eumicrosoma beneficum: Kononova, 1995: 121   . Keyed.

Female

Colour ( Figure 4a View Figure 4 ). Head black; A8 – A11 darker than A6 – A7 ( Figure 4d View Figure 4 ); mesosoma black; femora and tibiae of all legs having the same colour as metasoma, tarsi slightly lighter in colour; metasoma light red-brown to orange.

Head. Transverse in dorsal view, almost rectangular in lateral view; clypeus wider than long; distal margin of clypeus: convex ( Figure 5a View Figure 5 ); setation of clypeus: 4 or more setae; antennal rim well developed, prominent ventrally laterad of interantennal process ( Figure 5a View Figure 5 ); sculpture of antennal scrobe: absent; sculpture of frons medially: absent; ratio OOL/OD: OOL<OD; OOL/POL/LOL: 1:18:10; sculpture of interocellar area: absent; location of postgenal pit: closer to oral foramen than to occipital foramen; shape of postgenal pit: circular ( Figure 5c View Figure 5 ); sculpture of temple: imbricate-coriaceous; sculpture of occiput: smooth; sculpture of posterior vertex: imbricate-coriaceous; preoccipital furrow: wide, with sides converging medially and fused to form a tube-like structure ( Figure 5c View Figure 5 ); odontoid process: atrophied, barely visible ( Figure 5d View Figure 5 ).

Mesosoma (dorsal). Pronotum almost vertical, slightly visible in dorsal view ( Figure 5e,f View Figure 5 ); dorsal pronotal area: slightly visible (width of dorsal pronotal area at most 0.7 times width of tegula); mesoscutal suprahumeral sulcus: a simple line, incomplete; mesoscutal humeral sulcus: a simple line; anterior declivity of mesoscutum: prolonged anteriorly over pronotum; mesoscutum (except the anterior declivity of mesoscutum): slightly convex; extent of sculpture on mesoscutum: sculptured on anterior 1/4 along pronoto-mesoscutal suture, remainder smooth and lustrous; parascutal carina: broad, distinct; scutoscutellar sulcus: short, present only on the lateral sides of the transscutal articulation; axillar crescent: present; axillular carina: not pointed; posterior mesoscutellar sulcus distinct, crenulate; mesoscutellum flattened; pilosity of mesoscutellum: few sparse setae; shape of mesoscutellum: strongly transverse; ratio width mesoscutellum/length mesoscutellum: at most 4 times as wide as long; metascutellum: slightly convex; width of mesoscutellum/width of metascutellum: at most 1.4; width of metascutellum/length of metascutellum: 4.5 – 5.5 times as wide as long.

Mesosoma (lateral). Pronotal cervical sulcus: wide, relatively deep and crenulate; sculpture of lateral pronotal area: uniformly coriaceous; pronotal suprahumeral sulcus slightly visible; posterior pronotal sulcus: large, distinct; sculpture of speculum: some transverse striae; sculpture of upper mesepisternum below femoral depression: imbricate-coriaceous; mesepimeral sulcus: incomplete; mesopleural carina: visible as an abrupt change in sculpture; metapleural carina: present; metapleural sulcus: present only posterior to metapleural pit; anteroventral extension of metapleuron: well developed, touching middle of mesocoxa.

Wings ( Figure 4f View Figure 4 ). Fore wings: lanceolate; colour of fore wings: infuscated; colour of hind wings: hyaline throughout ( Figure 4f View Figure 4 ); fore wing length: at least 7.5 times as long as wide; length of marginal fringes of fore wing: at least 1.6 times as long as fore wing width; fore wing width: at most 2 times as wide as hind wing width; length of marginal fringes of hind wings: 2.9 – 3.2 times as long as hind wing width.

Metasoma. About twice as long as wide; longitudinal striae on T1: present on the anterior ¾. T1 3 times as wide as long; sculpture on T2: present on the anterior ¾; type of T2 sculpture: longitudinally finely vermiculate. T2 at least 7.5 times as long as T1 and 1.7 times as long as wide; each visible tergite with 2 pairs of setae (lateral – placed at the limit between tergite and laterotergites – and paramedian) ( Figure 12a View Figure 12 ).

Male ( Figure 4c View Figure 4 )

Size – 0.7 mm; similar to female, differing in: (a) structure of antenna – with 12 antennomeres, without clava ( Figure 4e View Figure 4 ); (b) length of metasoma – male metasoma is shorter than in female; (c) colour of T2 – not uniformily coloured as in female, but posterior half dark (brown); and (d) length of T2 – 1.7 times as long as wide in female and 1.2 times as long as wide in male.

Material examined

Canada. 1♀ Ontario, Ottawa , city garden, 45.3560°N, – 75.7069°W, 15 – 18 July 2008, leg GoogleMaps   . L GoogleMaps   . Masner ( YPT, coated for SEM), 1♂, Ontario, Riceville , 25 July 1979, leg   . Kaulbars ( OPPC); 21♀ and ♂, Ontario, Riceville June – August 1979 ( CNC); 5♀, Quebec, Rigaud , 9 August 1979, flood forest, leg   . Masner and Goulet ( CNC)   .

USA. 5♀, Kansas, Riley Co   . Konza Prairie Biological Station , July – August 2001, leg   . Zolnerovich and Kula ( CNC); 4♀, Florida, Manatee Bradenton, 11 October 1989, (ex eggs Ischnodemus fulvipes (De Geer)   in Thalia geniculata Linnaeus   ; CNC); 4♀, Maryland, Prince George Co   ., Patuxent Research Station , 7 – 13 July 1979, leg   . Schauff ( CNC)   .

Distribution

This is the only known Holarctic species of this genus ( Masner and Kozlov 1965; Kozlov and Kononova 1983), previously recorded from Republic of Moldova (Masner and Kozlov

1965; Kozlov and Kononova 1983; Gîrneţ 2012), Bulgaria ( Petrov 2012), and Russia (Krasnodar Krai) ( Kozlov and Kononova 1983) ( Figure 17a View Figure 17 ).

Biology

Baeoneurella benefica   is an egg parasitoid of Blissus leucopterus   ( Hemiptera   : Blissidae   ) ( Gahan 1913, Wright and Danielson 1992; Cherry 2011) and Blissus insularis   ( Hemiptera   : Blissidae   ) ( Coracini and Samuels 2002). It has also been reared from eggs of Ischnodemus fulvipes   ( Hemiptera   : Blissidae   ) (L. Masner pers. comm.).

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Scelionidae

Genus

Baeoneurella

Loc

Baeoneurella benefica (Gahan)

Popovici, Ovidiu Alin, Masner, Lubomir & Polaszek, Andrew 2019
2019
Loc

Eumicrosoma benefica

Fabritius K & Andriescu I 1985: 128
Kozlov MA & Kononova SV 1983: 314
Kozlov MA 1978: 646
Masner L & Muesebeck CFW 1968: 60
Gahan AB 1913: 442
1913