Chalcis intervalensis Saguiah & Tavares, 2020

Saguiah, Pâmella Machado, Molin, Ana Dal & Tavares, Marcelo Teixeira, 2020, The South American species of Chalcis Fabricius (Hymenoptera: Chalcididae), Zootaxa 4885 (3), pp. 353-383 : 361-365

publication ID

https://doi.org/10.11646/zootaxa.4885.3.3

publication LSID

lsid:zoobank.org:pub:4DA945AD-653E-4E8A-A33D-D52E2F9E44D3

DOI

https://doi.org/10.5281/zenodo.4330385

persistent identifier

https://treatment.plazi.org/id/039B87F3-FFCA-BB7F-FF6F-FB1AFE59FD69

treatment provided by

Plazi

scientific name

Chalcis intervalensis Saguiah & Tavares
status

sp. nov.

Chalcis intervalensis Saguiah & Tavares , sp. nov.

Figs 5 View FIGURE 5 a–f, 6a–d, 7a–d

Diagnosis. Both sexes. Mesepisternum entirely sculptured, foveolate along outer margin to foveate-reticulate medially ( Fig. 5e View FIGURE 5 ); metafemur ventrally with outer basal tooth the largest and as distant from second tooth as second is from the third tooth, the second tooth usually minute and the following teeth gradually increasing in size up to the sixth tooth ( Fig. 6b View FIGURE 6 ); petiole cylindrical, 3.2–3.7× as long as wide. Female. Protarsal claws only slightly curved, ventrally with 4 or 5 basal spines followed by 1 curved seta ( Fig. 6a View FIGURE 6 ). Male. Ventral plaque on distal quarter of antennal scape and with thin elongate sensillum ( Fig. 7b View FIGURE 7 ); hypopygium with V-shaped distal notch ( Fig. 7d View FIGURE 7 ).

Description. FEMALE. Length 5.0–7.0 mm. Color: Predominantly black, with following parts yellow (size of spots on mesosoma varies and mesosoma may be entirely black) ( Figs 5 View FIGURE 5 a–c, 6b): parascrobal area, maxillary and labial palps, two spots on pronotal collar submedially ( Fig. 5b View FIGURE 5 ) (occasionally the entire posterior margin of collar), along lateral margin of median lobe of mesoscutum, lateral lobe of mesoscutum posteriorly (occasionally absent), mesoscutellum laterally, tegula, pro- and mesotrochanter apically, pro- and mesofemur apically, inner face of protibia, mesotibia basally, tarsi, outer face of metafemur anteriorly and apically (occasionally also with a elongate spot along upper margin) ( Fig. 6b View FIGURE 6 ), metatibia subbasally ( Fig. 6b View FIGURE 6 ), petiole dorsally and ventro-distally, lateral spots on Gt1, Gt2 and Gt3 (occasionally with complete transverse bands on Gt3 to Gt7+8). Pedicel and ventro-basal area of petiole brown (occasionally black). Wings infuscate ( Figs 5a, b View FIGURE 5 ).

Head. Lower face not bulging above clypeus, with elongate umbilicate fovea enclosed by diagonal irregular carinae; parascrobal area densely foveate, interstices raised as irregular diagonal rugae, median intumescence present; malar space 0.5–0.6× eye height ( Fig. 5c View FIGURE 5 ), malar sulcus mostly inconspicuous or absent, internal and external carinae, if present, irregular, fine and inconspicuous; gena rugose, genal carina not reaching vertex; mandibular formula 2:3 or 3:3, if 3:3 median teeth inconspicuous; antennal scrobe from coriaceous ventrally to irregularly strigulate dorsally and with transverse V-shaped carina below median ocellus; interantennal projection with median carina dorsally, carina extending to median ocellus. MOD:POL:APL:OOL = 0.16:0.30:0.09:0.26. Scape 4.3 – 5.3× as long as wide, inner face flattened; anellus about 0.5× as long as wide ( Fig. 5d View FIGURE 5 ); Fu1 longer than all other funicular segments, about 2× as long as wide, and 1.2× as long as Fu2 length ( Fig. 5d View FIGURE 5 ).

Mesosoma . Mesoscutum with interstices coriaceous and dull, narrower than diameter of umbilicate foveae; mesoscutellum convex, frenal carina forming two sublateral lobes; mesopleuron with mesepisternum foveolate along outer margin to foveate-reticulate medially, interstices from smooth and shiny along outer margin to coriaceous along inner margin ( Fig. 5e View FIGURE 5 ); propodeum with irregular median carina, submedian carina absent, anterior and posterior costulae irregular, adpetiolar area with narrow and irregular areola medially, anterosubmedial area areolaterugose ( Fig. 6c View FIGURE 6 ); tarsomeres 4 and 5 of all legs with pubescence similar to basal tarsomeres ( Fig. 5f View FIGURE 5 ); protarsomeres 4 and 5 ventrally without pairs of distinct peg-like spines; protarsal claws only slightly curved, ventrally with 4 or 5 basal spines followed by 1 long setae ( Fig. 6a View FIGURE 6 ); mesocoxa densely pubescent posteriorly; mesotibial spur 0.6× as long as the width of the mesotibial apex; metacoxa punctate-rugose dorsally, inner face pubescent; metafemur with outer face densely punctate and interstices coriaceous, ventrally without inner basal tooth but with 9 teeth along outer margin, outer basal tooth the largest and as distant from second tooth as second tooth is from third tooth, the second tooth usually minute and the following teeth gradually increasing in size up to the sixth tooth ( Fig. 6b View FIGURE 6 ); metatibia with apical spine slender and longer than the apical width of metatibia ( Fig. 6b View FIGURE 6 ); metatarsomere 1 slightly longer than any of tarsomeres 2–5. Fore wing SMV:MV:PMV = 1.88:0.92:0.92.

Metasoma. Petiole 3.2–3.7× as long as wide, cylindrical, with weak dorsolateral carina along basal third, ventrally without longitudinal carina; hypopygial median projection apically with distinct set of short and appressed bristles, ventrally with bristles at most as long as the width of hypopygial projection in lateral view ( Fig. 6d View FIGURE 6 ); ovipositor sheath rounded apically, with some long setae ( Fig. 6d View FIGURE 6 ).

MALE. Length: 5.4–5.5 mm. Similar to females ( Fig. 7a View FIGURE 7 ), except: antennal scape with ventral plaque on distal quarter and with thin elongate sensillum ( Fig. 7b View FIGURE 7 ); tarsal claws bifid and pectinate ( Fig. 7c View FIGURE 7 ); hypopygium with concave surface and V-shaped distal notch ( Fig. 7d View FIGURE 7 ).

Material examined. Holotype. ♀ ( UFES), ‘ Brasil, São Paulo, Ribeirão Grande, Parque Estadual Intervales , 24°16’28.7’’S 48°25’17.3’’W, 21.II.2011, Malaise p2, N.W. Perioto e eq. col. ( UFES, nº 163889) GoogleMaps ’. Paratypes (37♀, 36♂). Brazil. Paraná. Piraquara, Mananciais da Serra , 3.XII.2005, L.C. Rocha-Filho col. (1♀, DZUP); São José dos Pinhais , VIII.1962, S. Laroca col. (1♀, DZUP) . Rio de Janeiro. Itatiaia, Parque Nacional de Itatiaia , 22°26’S, 44°36’O, 30.I.2012, Malaise Trap, R. F. Monteiro col. (1♀, MZSP) GoogleMaps ; Rio Grande do Sul. Arroio Grande, 32°3’22’S, 53°11’57’’W, 101 m, Malaise, on 29.XI.2002, 06.XII.2002, 02.I.2004, 09.I.2004, R.F. Krüger col. (1♀, 3♂, UFES) ; São Leopoldo , Staudinger col. (1♀, NHMUK) ; K. Staudinger col. (1♀, 3♂, ZSM) . Santa Catarina. [Seara], Nova Teutônia , on: 8.XII.1937, 27.XI.1952, F. Plaumann col. (2♂, NHMUK) . São Paulo. 31♀, 28♂: same or similar data as holotype collected in the coordinates and as pointed. Point 1, 24°16’28.0’’S 48°25’14.8’’W, 23.XI.2009 (1♀, 5♂, UFES) GoogleMaps , 22.XII.2009 (1♀, DZUP; 1♀, MNRJ; 1♀, MZSP; 7♀, UFES), 22.I.2010 (1♀, 1♂, UFES) , 21.I.2011 (1♂, DZUP; 1♂, MNRJ; 1♂, MZSP; 2♂, UFES) ; point 2, 24°16’28.7’’S 48°25’17.3’’W, 22.XII.2009 (1♀, DZUP; 1♀, MNRJ; 1♀, MZSP; 3♀, UFES), 22.I.2010 (1♂, UFES) GoogleMaps , 21.I.2011 (1♀, 1♂, DZUP; 1♀, 1♂, MNRJ; 1♀, 1♂, MZSP; 2♀, 3♂, UFES), 21.II.2011 (1♀, 1♂, UFES) ; point 3, 24°16’27.7’’S 48°25’19.3’’W, 22.XII.2009 (1♀, UFES) GoogleMaps , 21.I.2011 (3♀, UFES) GoogleMaps ; point 4, 24°16’28.8’’S 48°25’20.6’’W, 22.I.2010 (2♂, UFES) GoogleMaps , 21.III.2011 (1♂, UFES) GoogleMaps ; point 5, 24°16’28.6’’S 48°25’21.8’’W, 22.I.2010 (1♂, DZUP; 1♂, MNRJ; 1♂, MZSP; 1♀, 1♂, UFES), 20.XII.2010 (1♀, UFES) GoogleMaps , 21.III.2011 (2♂, UFES) . Uruguay: Rocha. Cardoso, Campo Natural , 34°05’26.8’’S 53°52’14.4’’W, Malaise, 10.IV.2015, E. Castiglione e eq. col. (1♀, UFES) GoogleMaps .

Other specimens examined (81♀, 267♂). Same or similar data as holotype collected in the coordinates and as pointed. Point 1 GoogleMaps , 24°16’28.0’’S 48°25’14.8’’W, 23.XI.2009 (14♂, UFES) GoogleMaps , 22.XII.2009 (2♀, 56♂, UFES) , 22.I.2010 (5♀, 24♂, UFES) , 20.XII.2010 (1♀, 10♂, UFES) , 21.I.2011 (1♂, UFES) , 21.II.2011 (1♂, UFES) ; point 2, 24º16’28.7’’S 48°25’17.3’’W, 23.XI.2009 (2♂, UFES) GoogleMaps , 22.XII.2009 (8♀, 11♂, UFES) , 22.I.2010 (11♀, 3♂, UFES) , 20.XII.2010 (2♀, 3♂, UFES) , 21.I.2011 (6♀, 21♂, UFES) , 21.II.2011 (2♂, UFES) ; point 3, 24°16’27.7’’S 48°25’19.3’’W, 23.XI.2009 (1♀, 5♂, UFES) GoogleMaps , 22.XII.2009 (17♂, UFES) , 22.I.2010 (12♀, 9♂, UFES) , 20.XII.2010 (1♀, 13♂, UFES) , 21.I.2011 (2♀, 1♂, UFES) , 21.II.2011 (2♀, 2♂, UFES) ; point 4, 24°16’28.8’’S 48°25’20.6’’W, 22.X.2009 (1♀, 4♂, UFES) GoogleMaps , 22.XII.2009 (6♂, UFES) , 22.I.2010 (3♀, UFES) , 20.XII.2010 (1♂, UFES) , 21.I.2011 (3♀, 13♂, UFES), 21.III.2011 (3♀, UFES) ; point 5, 24°16’28.6’’S 48°25’21.8’’W, 22.I.2010 (8♀, 12♂, UFES) , 20.XII.2010 (3♀, 21♂, UFES) , 21.I.2011 (4♀, 10♂, UFES) , 21.II.2011 (2♀, 5♂, UFES) , 21.III.2011 (1♀, UFES) .

Biology. Unknown.

Distribution. Brazil (Paraná, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, S„o Paulo) and Uruguay (Rocha).

Remarks. Chalcis intervalensis is distinguished from C. boi , C. ornatifrons and C. pilicauda by having a darker coloration on the medial portion of the gastral tergites, less robust body ( Fig. 5a View FIGURE 5 ), mesepisternum mostly coriaceousfoveolate ( Fig. 5e View FIGURE 5 ), metafemoral teeth with the first tooth closer to second tooth ( Fig. 6b View FIGURE 6 ), female protarsal claws ventrally with 4 or 5 basal spines followed by 1 long seta ( Fig. 6a View FIGURE 6 ), and cylindrical petiole more than 3.0× as long as wide. Chalcis intervalensis is similar to C. celis Burks , described from Mexico, in the color pattern and shape of the metafemur, but in C. intervalensis the outer basal tooth of the metafemur is usually larger than the following teeth, and the male hypopygium has a V-shaped distal notch (shallow U-shaped notch in C. celis ).

Etymology. The name of this species refers to Intervales State Park (Parque Estadual de Intervales), S„o Paulo, where this species is abundant.

UFES

Universidade Federal do Espirito Santo

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

R

Departamento de Geologia, Universidad de Chile

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

NHMUK

Natural History Museum, London

ZSM

Bavarian State Collection of Zoology

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Chalcididae

Genus

Chalcis