Abstract
A new species of Trichogramma Westwood (1833) (Hymenoptera: Trichogrammatidae) parasitizing eggs of Helicoverpa armigera (Hübner, 1808) (Lepidoptera: Noctuidae) on tomato in Northern Punjab, Murree hills, Pakistan is described. The new species is closely related to T. chilonis Ishii, the most widely distributed species in Pakistan and India. Morphological characters, ITS-2 sequence differences and reproductive data are presented to distinguish T. siddiqi n. sp. from T. chilonis.References
Hamid, F., Qureshi, M.A. & Mohyuddin, A.I. (1998) Use of Trichograma chilonis Ishii as biological control for Gurdaspur borer Acigona steniellus (Hampson) at Tandianwala Sugar Mills Ltd., Kanjwani, Faisalabad. In: Zaidi, S., (Ed.) Proceedings of the 33rd Annual Convention of the Pakistan Society of Sugar Technology, 24-25 August 1998 in Lahore, pp. 63–70.
Li, L.Y. (1994) Worldwide use of Trichogramma for biological control on different crops: a survey. In: Wajnberg, E. and Hassan, S. A. (Eds.) Biological control with egg parasitoids. Wallingford, CAB International, pp. 37–53.
Nagaraja, H. (1973) On some new species of Indian Trichogramma (Hymenoptera: Trichogrammatidae). Oriental Insects, 7, 275–290.
Nagarkatti, S. & Nagaraja, H. (1979) The status of Trichogramma chilonis Ishii (Hym.: Trichogrammatidae). Oriental Insects, 13, 115–117.
Nasir, F.M. (2005) The survey of the genus Trichogramma in Pakistan: Taxonomic studies using morphological, biological and molecular characters, Chapter3, Taxonomy: Morphological studies. Ph.D. Thesis, Humboldt University Berlin, ISBN 3-89820-996-2. 35 pp.
Nasir, F.M., Büttner, C., Reichmuth, Ch. & Schöller, M. (2006) Die Trichogramma-Fauna Pakistans (Hymenoptera: Trichogrammatidae). Mitteilungen der Deutschen Gesellschaft für allgemeine und angewandte Entomologie, 15, 93–96.
Pinto, J.D., Oatman, E.R. & Platner, G.R. (1989) Phenotypic plasticity and taxonomic characters in Trichogramma (Hymenoptera: Trichogrammatidae). Annnals of the Entomological Society of America, 82, 414–425.
Pinto, J.D., Stouthamer, R., Platner, G.R. & Oatman, E.R. (1991) Variation in reproductive compatibility in Trichogramma and its taxonomic significance (Hymenoptera: Trichogrammatidae). Annnals of the Entomological Society of America, 84, 37–46.
Pinto, J.D. & Stouthamer, R. (1994) Systematics of the Trichogrammatidae with emphasis on Trichogramma. In: Wajnberg, E. & Hassan, S.A. (Eds.) Biological Control with Egg Parasitoids. Wallingford, CAB International, pp 1–36.
Pinto, J.D. (1999) The systematics of the North American species of Trichogramma (Hymenoptera: Trichogrammatidae). Memoirs of the Entomological Society of Washington, 22, 1–287.
Pintureau, B. (1991) Indices d’isolement reproductif entre espèces proches de Trichogrammes (Hym. Trichogrammatidae). Annales de la Société Entomologique de France, 27, 379–392.
Pintureau, B. (1993) Enzymatic analysis of the genus Trichogramma (Hym.: Trichogrammatidae) in Europe. Entomophaga, 38, 411–431.
Pintureau, B. (1997) Systematic and genetical problems revised in two closely related species of Trichogramma, T. embryophagum and T. caoeciae (Hym., Trichogrammatidae). Miscellania Zooloaica, 20, 11–18.
Platner, G.R., Velten, R.K., Plannoutene, M. & Pinto, J.D. (1998) Slide-mounting techniques for Trichogramma (Trichogrammatidae) and other minute parasitic Hymenoptera. Entomological News, 110, 56–64.
Reay-Jones, F.P.F., Rochat, J., Goebel, R. & Tabone, E. (2006) Functional response of Trichogramma chilonis to Galleria mellonella and Chilo sacchariphagus eggs. Entomologia Experimentalis et Applicata, 118, 229–236.
Salt, G. (1937) The egg parasite of Sialis lutaria: A study of the influence of the host upon a dimorphic parasite. Parasitology, 29, 539–553.
Silva, I.M.M.S., Honda, J., van Kan, F.J.P.M., Hu, J., Neto, L., Pintureau, B. & Stouthamer, R. (1999) Molecular differentiation of five Trichogramma species occurring in Portugal. Biological Control, 16, 177–184.
Stouthamer, R., Hu, J., van Kan, F.J.P.M., Platner, G.R. & Pinto, J.D. (1999) The utility of internally transcribed spacer 2 DNA sequences of the nuclear ribosomal gene for distinguishing sibling species of Trichogramma. Biological Control, 43, 421–440.