• R.K.SINGH
• PRAVESH KUMAR SEHGAL

TO STUDY OF PRE-OVIPOSITOR, EGG STRUCTURE HATCHING AND INCUBATION PERIOD, OF AUDINETIA SPINIDENS FABR. (HETEROPTERA- PENTATOMIDAE) R. K. Singh and Pravesh Kumar Sehgal 1. R. K. Singh, Associate professor, Department of Zoology Govt. (P.G.) College, Ranikhet , Almora, Uttarakhand. Email = rksinghrdr@gmail.com 2. Pravesh Kumar Sehgal, Associate professor, Department of Zoology, School of Science, Behind Transport Nager, Haldwani 263139, Nainital, Uttarakhand. Email = pksehgal@uou.ac.in ABSTRACT A pre-ovipositor period of 25 hrs, to 72 hrs, with an average of 50 hrs. Is required period to egg laying (Table-1) in the beginning of ovipositor, the female stands firmly on her slender legs and leans forward a little. Insects are a highly specialized group of invertebrates belonging to the largest animal phyla, the arthopoda, which comprises about 70% of the known species. Their tendency for life is amazing and their capacity for multiplication and wonderful adaptations has made them a serious threat to human existence. Among these insects, Heteroptera bugs pause a great problem to the farmers as they cause extensive loss to the valuable crops. Audinetia spinidens Fabr.(Heteroptera- Pentatomidae) is a sap sucking phytosuccivorous bug which infests berseem (Trifolium alexandrinum), maize (Zea maize), bajra (Pennisetum glacum), jawar (Sorghum valgaris) and rice(Oryza sativa) crops in Saharanpur district and adjacent areas causing considerable loss in the yield Then the ovipositors touch the substratum and single egg takes about one minute for laying. Eggs are laid in group or batches. In a batch, eggs are attached with each other and to the substratum by a glued substance come out by accessory reproductive glands during ovipositor. Eggs are milky white in colour which becomes brownish and blackish on exposure to air. The length varies from 1 mm to 1.5mm with an average of 1.28mm and width varies from 1.0mm to 1.5mm with an average of 1.27mm (Table-2). The eggs are anterioly closed by round disc-shaped operculum lifted by chitin us triradiate egg burster. Around the anterior margin there is a single circular row of small processes of micropyles. Egg chorionic is smooth. During embryonic development, the egg colour changes from milky white to yellowish, brownish and on maturity turn blackish .It varies according to temperature and humidity of the environment and ranges from 6 to 10 days with an average period of 7.5 days (Table-3). Key words: Pre-ovipositor, Egg structure, hatching and Incubation period

Key words: Pre-ovipositor, Egg structure, hatching and Incubation period

"TO STUDY OF PRE-OVIPOSITOR, EGG STRUCTURE HATCHING AND INCUBATION PERIOD, OF AUDINETIA SPINIDENS FABR. (HETEROPTERA- PENTATOMIDAE)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 8, page no.c306-c314, August-2021, Available :http://www.jetir.org/papers/JETIR2108289.pdf

"TO STUDY OF PRE-OVIPOSITOR, EGG STRUCTURE HATCHING AND INCUBATION PERIOD, OF AUDINETIA SPINIDENS FABR. (HETEROPTERA- PENTATOMIDAE)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 8, page no. ppc306-c314, August-2021, Available at : http://www.jetir.org/papers/JETIR2108289.pdf