An international journal on animal taxonomy, diversity, ecology and zoogeography

 ISSN: 0973-7871 (online)
 ISSN: 0973-9955 (print)
 
 Volume: 4, Number: 1

ISSN: 0973-7871(Online Edition)

Date of Publication: July 10, 2010

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Biosystematica,4(1):5-14 (2010-07-10) Accepted: 2010-05-18

Field observations on the mating behaviour of the Oriental Rioxa sexmaculata (van der Wulp) (Diptera: Tephritidae) and a review of the reproductive behaviour patterns in Acanthonevrini

Author[s]: DAMIR KOVAC, PATRICK DOHM & AMNON FREIDBERG

Abstract: 

The mating of Rioxa sexmaculata was observed on fallen tree trunks in north Thailand. Males attracted females by raising their abdomen, inflating two pleural vesicles and probably releasing sex pheromones (“pheromonal calling”). They established territories on tree trunk surface areas containing bark-beetle holes. Males defended their territories against opponents and allowed females to lay eggs in the bark-beetle holes only after copulation. These observations reveal that Rioxa exhibits a resource defence mating system. The reproductive behaviour of R. sexmaculata is compared to other Acanthonevrini with respect to larval habitat, oviposition site, pheromonal calling, mating trophallaxis, sexual dimorphism, resource guarding, copulation duration and mating system.

   
Biosystematica,4(1):15-23 (2010-07-10) Accepted: 2010-06-14

Diversity and Status of Fish Fauna of the River Drainage Systems of Himachal Pradesh in Western Himalaya, India

Author[s]: INDU SHARMA

Abstract: 

Ichthyofaunal samples from the river-drainages systems of Himachal Pradesh were collected and studied to determine the diversity and present status of the species. The study revealed the presence of 97 species belonging to 51 genera, 18 families and 6 orders, of which the members of the family Cyprinidae constituted an overwhelming majority. Eight species belonging to families Cyprinidae, Balitoridae and Sisoridae have the type localities within the State. Himachal Pradesh is rapidly progressing through harnessing hydroelectric energy by damming larger rivers and their tributaries in high altitude areas. Such man-made impoundments and other anthropogenic activities have resulted in drastic changes in the habitats of fish fauna with consequent negative impact on diversity and abundance of fishes in the river-drainages of the state.  Wanton modification of aquatic habitats is detrimental to the survival of the fish fauna and indigenous fishery in the state.

   
Biosystematica,4(1):25-30 (2010-07-10) Accepted: 2010-05-02

Studies on the life cycle of Nosomma monstrosum (Nuttall & Warburton) (Acarina: Ixodidae)

Author[s]: K. PRAKASAN & N. RAMANI

Abstract: 

Nosomma monstrosum was recognized as an ixodid tick parasite infesting chiefly buffalo and also cow. During the present study, data were collected on the biological aspects of N. monstrosum based on experimental infestation made on albino rats in the laboratory. Under laboratory condition, the development of the species was completed within 54-65 days. The newly emerged adults resumed feeding activity  within 7-8 days after moulting and their active feeding period lasted  for 17-30 days. After 4 days of pre-oviposition period, the females started oviposition which lasted for 9-11 days. Thus the species required  84-109 days for the completion of life cycle.  Further, contrary to the earlier record of the species as a three host tick,  results of the present study indicated the possibility that  N. monstrosum is a two-host tick since the larval stages of the species often moulted into nymphs by remaining attached on to the body of the host animals.

   
Biosystematica,4(1):31-38 (2010-07-10) Accepted: 2010-02-13

Morphometrics of the genus Hipposideros from Northern Western Ghats of Maharashtra

Author[s]: VISHAKHA S. KORAD, RUPESH N. RAUT & M. S. PRADHAN

Abstract: 

Morphometric studies of species of Hipposideros from Northern Western Ghats of Maharashtra were carried out. The study was carried out on 42 individuals based on 21 morphological characters. Multivariate analysis of allometrically scaled cranial, dental and external character measurements was carried out. Discriminant factor analysis (DFA) showed formation of three clusters for five species. Phylogenetic analysis showed three subtrees for Hipposideros fulvus and two clusters for H. speoris group predicating possible cryptic species in these groups.

   
Biosystematica,4(1):39-58 (2010-07-10) Accepted: 2010-05-30

Studies on Acridoidea (Orthoptera) of Western Uttar Pradesh

Author[s]: MOHD. KAMIL USMANI, MOHD. IMRAN KHAN & HIRDESH KUMAR

Abstract: 

Thirty three species of locusts and grasshoppers representing thirty genera, eleven subfamilies and four tribes belonging to the families Pyrgomorphidae, Catantopidae and Acrididae are reported from different localities of Western Uttar Pradesh. Localities surveyed and distribution of each species collected from Western Uttar Pradesh is discussed. Their distinguishing characters and economic importance are given. Bio ecological data on the species and their relationship with vegetation are also provided. A comprehensive report of Acridoid fauna of this region is given for the first time.