38 research outputs found
Formicidae of the Andaman and Nicobar Islands (Indian Ocean: Bay of Bengal)
Ants on the Andaman and Nicobar Islands, India were surveyed. These collections doubled the number of ant species recorded from these islands (from 59 to 125). Records include five endemic species, but no endemic genera. The surveys were fairly superficial, and it is likely many species remain to be discovered on these islands
New records of insect and mite pests of spice crops in Andaman Islands, India
Eighteen species of insects and one species of mite are reported for the first time from seven spice crops viz., cinnamon, clove, black pepper, nutmeg, curry leaf, chillies and turmeric, from Andaman and Nicobar Islands, India.
 
New records of insect and mite pests of spice crops in Andaman Islands, India
Eighteen species of insects and one species of mite are reported for the first time from seven spice crops viz., cinnamon, clove, black pepper, nutmeg, curry leaf, chillies and turmeric, from Andaman and Nicobar Islands, India.
 
Molecular and biological characteristics of some geographic isolates of nucleopolyhedrovirus of Helicoverpa armigera (Lep.: Noctuidae)
Seven geographic isolates of Helicoverpa armigera NPV were characterized by PCR-RFLP techniques and their comparative virulence to second instar larvae of H. armigera (Hübner) were compared before and after exposure to simulated sunlight as well as open weather conditions on cotton and tomato plants. The PCR products of 25K FP region showed no difference among the isolates (780 bp). The PCR amplification products revealed genetic diversity among the 7 HearNPV isolates when they were digested individually using four different restriction enzymes (HindIII, BamHI, PstI, and EcoRI). The bioassays of the HearNPV isolates against the second instar larvae of H. armigera, before and after exposure to simulated sunlight, revealed a range of variation in their biological activity. However, the NGM isolate was the most virulent with the lowest LC50 and LT50 values. The dose-inhibitory response of the second instar larvae of H. armigera to the virus isolates revealed NGM isolate to be the least susceptible to simulated sunlight, having the highest ID50 value (462.9 W/m2). Experiments on persistence of HearNPV isolates on cotton and tomato plants under open weather conditions showed that the persistence of the viral isolates was relatively higher on tomato than on cotton
Life history of Pachliopta rhodifer (Papilionidae: Troidini)
Volume: 48Start Page: 111End Page: 12
Additions To the Coccinellid Fauna of the Andaman Islands and the Biology of the Endemic Chilocorus Coelosimilis Kapur 1966 (Coleoptera : Coccinellidae)
Volume: 104Start Page: 232End Page: 23
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Not AvailablePardoteleia, a monotypic genus was described by Kozlov and Lê (1988). A new species Pardoteleia flava from India is now described and imaged. The hitherto unknown male of this genus is also described and imaged for the first time. Pardoteleia prater, the type species is redescribed and imaged with intraspecific variations in the Indian specimens.Not Availabl
Life history of Attacus mcmulleni (Saturniidae) from the Andaman Islands, India
Volume: 31Start Page: 169End Page: 17
Occurrence of Thosea andamanica Holloway (Lepidoptera: Limacodidae) on coconut in the Nicobar Islands, Bay of Bengal, Indian Ocean
Volume: 93Start Page: 306End Page: 30
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Not AvailableTwenty-four species of Encyrtidae (Hymenoptera: Chalcidoidea) are recorded from the Andaman Islands (India), of these 12 species are newly recorded from these islands. A new genus, Anikera Hayat, gen. nov., (Type species Anikera andamana Hayat, sp. nov.), based on one female (holotype) from ANI and one female from Kerala State, and a new species of Trechnites Thomson (T. hairah Hayat, sp. nov.) are described. The latter species was described from the holotype and two paratypes collected in Kerala State, and a paratype from ANINot Availabl