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Study on systematics of leafhopper fauna at different altitudes

KrishiKosh

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Title Study on systematics of leafhopper fauna at different altitudes
 
Creator NIRANJANA G. N.
 
Contributor Naresh M. Meshram
 
Subject null
 
Description t-9782
Taxonomic studies on leafhoppers at different altitude are important in view of the
difficulties in the identification. These are the major constraints of several commercial
crops, affected plants lose their vigor, leaves shows curling, bronzing and drying
symptom. Of the leafhopper vectors of the plant diseases, 63% of the species belongs to
subfamily Deltocephalinae. Major gap is lack of systematics of the, including descriptive
and revisionary taxonomy, and historical biogeography, also the exploration from
different altitude is very less. In our study we have described the four new species of
Pseudosubhimalus, as Pseudosubhimalus sp.nov. I, II, III and IV. Also redescribed the
Pseudosubhimalus bicolor and P. yatungensis with new record of P. yatungensis which is
earlier known from Yatung, Tibet. This genus earlier reported from Himalayan and sub
Himalayan region of India. Due to changes in temperature regime in the type locality the
Katrain, we recorded that many individuals from high altitude Dalang as compared to the
type locality. Other species collected during exploration like Amritodus atkinsoni
(Lethierry), Cofana unimaculata (Signoret), Evacanthus interruptus (Linnaeus),
Exitianus indicus (Distant), Goniagnathus punctifer Walker, Gurwa minorcephala
Pruthi, Hishimonus phycitis (Distant), Idioscopus nitidulus (Walker), Mimotettix sps,
Phlogotettix indicus (Rao), Platymetopius fedilis (Distant) were provided with diagnostic
character which help in easy and correct identification of species. Also redescription is
provided for Chiasmus jagdishi Pruthi, Jilinga gopii (Pruthi), Ledra cingalensis
(Distant), Ledra mutica (Fabricius), Scaphoideus assamensis Distant. Diversity analysis
was carried out and calculated diversity indices such as Shannon-Wiener index, Simpson
index and Margalef diversity index. Surveys were carried out in three different altitude by
net sweeping and light traps and processed in the lab for final microscopy and
photography. For the description, characters studied were (3.2.5). With emphasis was
given to male genitalia variation. Measurements were taken for above mentioned
characters (3.2.5). Checklist and diagnosis in form of photographs were provivded for
easy identification.
 
Date 2018-10-09T06:26:47Z
2018-10-09T06:26:47Z
2017
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/5810075601
 
Language en_US
 
Format application/pdf
 
Publisher DIVISION OF ENTOMOLOGY ICAR-INDIAN AGRICULTURAL RESEARCH INSTITUTE NEW DELHI