Journal of Threatened Taxa | www.threatenedtaxa.org | 26 February 2016 | 8(2): 8526–8527
1,2 Forest Entomology Division, Forest Research Institute, P.O. New Forest, Dehra Dun, Uttarakhand 248006, India
1 email@example.com author), 2 firstname.lastname@example.org
Editor: Mohammad Hayat, Aligarh Muslim University, Aligarh, India. Date of publication: 26 February 2016 (online & print)
Manuscript details: Ms # 1910 | Received 27 March 2015 | Final received 04 February 2016 | Finally accepted 08 February 2016
Citation: Ikram, M. & M. Yousuf (2016). Description of a new species of Oligosita Walker (Hymenoptera: Trichogrammatidae) from Punjab, India. Journal of Threatened Taxa 8(2): 8526–8527; 8526-8527
Copyright: © Ikram & Yousuf 2016. Creative Commons Attribution 4.0 International License. JoTT allows unrestricted use of this article in any medium, reproduction and distribution by providing adequate credit to the authors and the source of publication.
Funding: Indian Council of Forest Research and Education.
Conflict of Interest: The authors declare no competing interests.
Acknowledgments: The authors are greatly indebted to Director, Forest Research Institute, Dehradun for providing research facilities.
Species of the genus Oligosita Walker (1851) are important egg parasitoids of hemipterous insect pest and they keep check and balance on the population of this insect pest in nature. The genus contains 94 species worldwide. Hayat (2008) provided notes on 17 species of genus Oligosita (including Pseudoligosita Girault), from India and gave a key to these species. But seven species (brevicilia, brevifringiata, latipennis, longicilia, nephotetticum, singularis, yasumatsui) have been transferred to Pseudoligosita (Pinto & Viggiani 2004; Begum & Anis 2013). Other recently published species of Oligosita from India include: Hayat (2009), O. similiana; Yousuf & Joshi (2003), O. longiflagellata; Fatma et al. (2014), O. obliqua; Begum & Anis (2015), O. doonensis; Begum & Anis, in Begum et al. (2015), O. aseta. Presently the genus is represented in the Indian fauna by 17 species, including the new species O. ferozepurensis described in this paper. The types are deposited in National Forest Insect Collection (NFIC), Forest Entomology Division, Forest Research Institute, Dehradun, Uttarakhand, India.
Oligosita ferozepurensis sp. nov.
(Images 1 A–F)
Holotype: NFIC-FRI-21937/1, female (on slide), 27.xii.2013, Kanhe Wali Basti, Ferozepur, Punjab, India, 30.9230N & 74.6100E; 197m, coll. Mohsin Ikram.
Paratypes: NFIC-FRI-21937/2-4, 3 females (on 3 slides), same data as holotype.
Etymology: The specific name is derived from the type locality, Ferozepur (Punjab) India.
Description: Female: Body length, 0.53mm. Body honey yellow (Image 1A); head light brown; ocelli and eyes black. Antenna dark yellow. Mesosoma with some infuscation present laterally on pronotum, and on sides of mesosoma. Fore wing hyaline. Metasoma brown; ovipositor sheaths brown.
Head (Image 1B) slightly wider than long in facial view (32:28); ocelli arranged in obtuse triangle; malar space clearly longer than eye width. Mandible tridentate (Image 1C). Maxillary palp one-segmented and well developed (Image 1C). Antenna (Image 1H) with scape cylindrical, 3.2× as long as broad (22:7); pedicel 1.6× (14:9) as long as broad and slightly wider than scape (9:7); funicle narrowest basally and slightly wider than long (8:7); clava 3-segmented, about 2.6×as long as broad (26:10); widest at level of distal part of first segment and base of second segment; slender and longest apical segment terminating in a drumstick-like projection; drumstick-like projection a little shorter than third claval segment (8:11).
Mesosoma: Mid lobe of mesoscutum slightly wider than long (37:35); scutellum about 1.9× as broad as long (37:19); propodeum longer than metanotum. Fore wing (Image 1E) hyaline except an infuscated patch beneath stigmal vein and submarginal vein, 3.7× as long as wide (70:19); venation extending slightly more than 3/5 wing length; ratio of submarginal: premarginal: marginal: stigmal veins, 20:10:25:6; costal cell broad, shorter than marginal vein; stigmal vein well developed; marginal fringe 1.2× as long as maximum wing width (54:44).
Metasoma: Gaster longer than mesosoma; ovipositor slightly exserted, longer than length of hind tibia (63:50); hypogynium reaching half the length of ovipositor (Image 1F).
Comments: Oligosita ferozepurensis sp. nov. is similar to O. breviclavata Yousuf & Shafee (1988: 148), but can be separated by having mid lobe of mesoscutum slightly wider than long (37:35); scutellum about 1.9× as broad as long (37:19), fore wing with disc sparsely setose; setae arranged on disc up to the area beneath marginal vein; marginal fringe 1.2× as long as maximum wing width (54:44), antenna with scape cylindrical, 3.2× as long as broad; funicle as long as wide, clava 2.6× as long as wide and apical segment terminating into two drum stick like projection. In O. breviclavata mid lobe of mesoscutum about 1.4× as broad as long (40:29); scutellum about 1.7× as broad as long (32:19), fore wing with disc sparsely setose, setae arranged on disc up to apical marginal; marginal fringe 1.5× as long as maximum wing width, antenna with scape cylindrical, 2.7× as long as broad; funicle wider than long; clava 1.5× as long as wide and apical segment terminating into three cilia like projection.
This new species is also similar to Oligosita balcluthae (Bella et al. 2015), but can be separated by having the antennal scape broad, shorter than clava (22:26); funicle segment half the length of pedicel (7:14), fore wing with marginal fringe 1.2× longer than maximum wings width; ratio of submarginal: premarginal: marginal: stigmal veins (20:10:25:6). In O. balcluthae the fore wing with marginal fringe as long as maximum wings width; ratio of submarginal: premarginal: marginal: stigmal veins (18:08:20:6).
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