Orasema peckorum, Heraty & Baker, 2020

Heraty, John M. & Baker, Austin J., 2020, New species of Orasema (Hymenoptera: Eucharitidae) from Central and South America, Journal of Natural History 54 (9), pp. 735-754 : 744-746

publication ID

https://doi.org/ 10.1080/00222933.2020.1747651

DOI

https://doi.org/10.5281/zenodo.4329792

persistent identifier

https://treatment.plazi.org/id/03E5B946-A02B-462F-FECB-6108FCDBAA3A

treatment provided by

Carolina

scientific name

Orasema peckorum
status

sp. nov.

Orasema peckorum   sp. nov. (lasallei species group)

( Figures 2 View Figure 2 , 4a – c View Figure 4 )

http://zoobank.org/ urn:lsid:zoobank.org:act:8C969A68-9200-4453-B0ED59E7BB0DE451

Diagnosis

Recognised by the labrum with 8 digits, frons rugulose, lower face irregularly rugosereticulate, scape and legs yellow, mesosoma coarsely rugose-areolate and bluish green with reddish patches, and fore wings pilose but with the basal area and speculum bare and the speculum closed basally by a broad band of setae. Basal third of hind wing microsetose, and costal cell with scattered setae in apical half. Closest to O. lasallei   and O. vasqueszi   , but these have a distinctly costate frons.

Female. Length 4.87 mm.

Colour: Head and mesosoma blue green, darker ventrally; mesosoma with reddish patches on anterior midlobe, axillae, a medial line on scutellar disc, and the frenal line. Scape, pedicel and anellus yellow; flagellum brown. Mandible yellowish-brown with teeth dark brown; maxilla and labium yellowish brown. Fore and mid coxa yellowish-brown, mid coxa with dark brown lateral channel; hind coxa brown dorsally to yellow ventrally; remaining legs yellow. Fore wing hyaline; venation yellowish brown. Petiole blue-green; gaster brown, Mt 1 darker brown dorsally and with purplish reflections.

Head in frontal view subtriangular; head width 1.25× height; frons rugulose to rugosereticulate dorsally, lower face lateral to clypeal area reticulate, upper frons with weak vertical carinae; scrobal depression shallow, laterally rounded, weakly rugulose; eyes bare, inter-ocular distance 1.7× eye height; malar space 0.8× eye height; supraclypeal area about as long as broad, shorter than clypeus, mostly smooth; clypeus smooth; epistomal sulcus distinct and sharply defined; anterior tentorial pit strongly impressed; anteclypeus weakly differentiated, clypeal margin broadly rounded. Labrum with 8 digits. Mandibular formula 3:2 [?, only partially visible]. Palpal formula 3:3. Occiput aciculate, shallowly emarginate in dorsal view, dorsal margin abrupt; temples broad. Scape not reaching median ocellus. Pedicel globose, broader than F1. Flagellum with 8 funiculars; flagellum length 1.2× head height; anellus disc-shaped; F2 narrower than pedicel, 2.8× as long as broad, 1.4× as long as F3; following funiculars subequal in length, equal in width; clava subconical.

Mesosoma length 1.0× height. Mesoscutal midlobe rugose-reticulate, more smoothly reticulate anteriorly, bare; lateral lobe areolate-reticulate; notauli deep. Axilla rugosereticulate, dorsally rounded, on roughly same plane as scutellum; scutoscutellar sulcus broad, regularly foveate, broadly separated from transscutal articulation medially; scutellar disc slightly longer than broad, coarsely rugose-areolate; frenal line irregularly foveate; frenum rugulose; axillular sulcus absent; axillula areolate. Propodeal disc broadly rounded, without depression or carina, irregularly rugose-areolate; callus weakly rugulose, bare; callar nib absent. Prepectus triangular dorsally, strongly narrowed ventrally, sculpture reticulate. Mesepisternum areolate-reticulate laterally, smooth ventrally, broadly rounded anterior to mid coxa. Upper mesepimeron mostly smooth; lower mesepimeron reticulate; transepimeral sulcus weakly impressed. Metepisternum laterally irregularly reticulate. Propleuron convex, weakly reticulate. Postpectal carina prominent. Hind coxa 1.8× as long as broad, completely reticulate; hind femur 6.0× as long as broad, with short, dense setae apically; hind tibia densely setose. Fore wing 2.6× as long as broad, 2.5× as long as mesothorax; basal cell and speculum bare, but speculum closed by setae basally, costal cell and wing disc densely setose; marginal fringe relatively long; submarginal vein with several long setae in basal half, with smaller setae apically; marginal vein pilose; stigmal vein more than 2.5x as long as broad, slightly angled; uncus absent; postmarginal vein 2.2× as long as stigmal vein. Hind wing pilose apically, basal third micropilose, costal cell with sparse setae in apical half.

Metasoma: Petiole cylindrical, linear in profile, 1.8× as long as broad, 1.0× as long as hind coxa, rugose-areolate, anterior carina strong, lateral margin rounded, ventral sulcus present with margins narrowly separated. Antecostal sulcus crossed by minute carinae; acrosternite posteriorly rounded; hypopygium apically with one pair of long setae. Ovipositor not exposed.

Male. Length 4.19 – 5.21 mm. Head width 1.2 – 1.3× height; scape yellow, pedicel and anellus pale brown; labrum with 6 digits; flagellum with 8 funiculars, clava 2-segmented, flagellum length 2.1× height, F2 broader than pedicel, anellus minute, difficult to distinguish, F2 2.3 – 2.6× as long as broad. Legs beyond coxa yellow. Petiole 8.3 – 9.3× as long as broad, 2.3 – 2.6× as long as hind coxa. Genitalia with long, thin and broadly separated parameres, median process and broad aedeagus.

Holotype: Brazil: Nova Teutonia , 16.xi.1944, F. Plaumann [1♀, UCRCENT00309915 ], deposited in BMNH   . Paratypes: Brasil: [M...] unreadable label, Wthm. [1♂, NMW: UCRCENT00423314 View Materials ]   . Brazil: Rio de Janeiro: Teresopolis , 22°25 ʹ 27”S, 42°58 ʹ 05”W, 10. iii.1966, H. & A. Howden [1♂, UMNH: UCRCENT00476436 View Materials ].   Minas Gerais: S. Caraca , S. Barbara, 20°05 ʹ 50”S, 43°29 ʹ 18”W, i.1970, F.M. Oliveira [1♂, CNC: UCRCENT00426117 View Materials ] GoogleMaps   .

Etymology. Named after Stuart Peck and Jarmila Kukalova-Peck for their outstanding collections and incredible dedication to all that is entomology.

BMNH

United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]

NMW

Austria, Wien, Naturhistorisches Museum Wien

CNC

Canada, Ontario, Ottawa, Canadian National Collection of Insects

NMW

Naturhistorisches Museum, Wien

UMNH

Utah Museum of Natural History

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes