Biosystematica, 2009, 3(1)
Date of Publication 28 June 2009
A New Species of the Genus Chrysso O. P.-Cambridge (Araneae: Theridiidae)
MANJU SILIWAL 5-9
ABSTRACT. A new species Chrysso pseudotheridula of a comb-footed spider family Theridiidae is described from Pakke Tiger Reserve, Arunachal Pradesh. This species differs from the other Chrysso species reported from India in having a pair of anteriolateral bands on abdomen and in the structure of the epigynum. Illustrations, photographs and natural history of the new species are provided.
from Arunachal Pradesh, India
Variations in feather structure of monotypic Cheer pheasant, Catreus wallichii (Hardwicke) (Galliformes: Phasianidae) from Garhwal Himalaya, India
- S. BISHT AND B. S. KATHAIT 11-14
ABSTRACT – Microscopic study of the feathers of different spatially isolated populations of Cheer pheasant was conducted to record structural variations. Significant differences were observed in appearance and barbules structure of the wing feathers. In one of the populations, which was of wide occurrence, the feathers were smooth and barbules with triangular heart shaped nodes and long internodes. In another population, which was observed in Agrora (District – Pauri Garhwal) and Joshimath (District – Chamoli Garhwal), the feathers with unusual velvety surface, barbules with rod-shaped nodes and short internodes were recorded.
Description of a new species of genus Rostrulium Siddiqi, 1995 (Dorylaimida-Tylencholaimidae) from Rajasthan, India
PADMA BOHRA & RAZIA SULTANA 15-20
ABSTRACT – A new species of nematodes is described and illustrated from the Thar Desert of Rajasthan, India. Rostrulium siddiqii sp. nov. is characterized in having (L =0.8-0.9mm; a =38-40; b =4.4-5.0; c =35-40; V =53-54) thin cuticle with very faint radial elements; smooth, cap-like lip region; odontostyle 10-12 μm long, cuticularised, sharply pointed, dorsally curved; odontophore 12-13 μm long; pharynx with gradually expanded basal part; amphidelphic females; males with robust, ventrally arcuate dorylaimoid spicules; one adanal and three to four widely spaced ventromedian supplements.
Description of a new species of Aenasius Walker (Hymenoptera: Encyrtidae), parasitoid of the mealybug, Phenacoccus solenopsis Tinsley (Homoptera: Pseudococcidae) in India
MOHAMMAD HAYAT 21-26
ABSTRACT. A new species of the encyrtid genus Aenasius, A. bambawalei is described. This parasitoid has been reared from Phenacoccus solenopsis, a mealybug that has invaded India and spread to all the cotton-growing areas in India.
Two new species of Encarsia (Hymenoptera: Aphelinidae), parasitoids of whiteflies (Homoptera: Aleyrodidae) from Mexico
SVETLANA N. MYARTSEVA 27-31
Abstract. Descriptions of two new species, Encarsia madera sp. nov. and Encarsia mexicella sp. nov., reared from whiteflies in Tamaulipas, Mexico, are given and illustrated.
First Record of Epipteromalus Ashmead from the Old World with the Description of A New Species Associated with Spider Egg Sacs from India (Hymenoptera: Pteromalidae)
- M. SURESHAN AND S. TALUKDAR 33-36
ABSTRACT: A new species of the genus Epipteromalus Ashmead viz. E.bengalensis sp. nov. (Hymenoptera: Pteromalidae) is described from India. The genus Epipteromalus is reported for the first time from the old world. The affinities of the new species with the only known species E. algonquinensis Ashmead are also discussed.
Reproductive performance of Coccinella transversalis Fabricius (Coleoptera: Coccinellidae) on different aphid species
ARSHAD ALI, PARVEZ QAMAR RIZVI AND MAHESH PATHAK 37-41
ABSTRACT: The reproductive performance of Coccinella transversalis Fabricius was evaluated on five aphid species i.e., Lipaphis erysimi Kaltenbach, Aphis craccivora Koch, Hyadaphis coriandri Das, Rhopalosiphum nymphae Linnaeus and Macrosiphum rosae Linnaeus, under laboratory conditions (25±1°C, 65±5 % RH and 12 L:12 D). The response of female towards prey consumption and egg production was highest on L. erysimi and lowest on M. rosae. The progeny loss and prereproductive period was minimum with regard to L. erysimi. The reproductive period, post-reproductive period, reproductive time ratio, reproductive rate and bioconversion efficiency were significantly maximum on L. erysimi than other aphid species. Among all the aphid species tested, L. erysimi proved to be the most suitable species, sustaining better reproductive performance of C. transversalis.
On the occurrence of certain uncommon bird species from Kadalundy Estuary, Kerala, South India
K.M. AARIF AND S. PRASANTH NARAYANAN 43-46
ABSTRACT: The Kadalundi Wetland located in Tirur Taluk and comes under the Vallikunnu Panchayat. The Three-square kilometres of this wetland were declared as a community reserve area during 2008. On the western side of the railway track, about 8 hectares of mudflats are exposed during low tide when the water level between the busy railway line and the sea mouth recedes, which attracts many birds to the wetland. The present reports are based on the observations from June 2007 to December 2008. The present study reported 12 Uncommon Species, Spotted Redshank, Northern Shoveller, Brown Skua and Pamarine Jaeger are new additions to the avifauna of Kadalundy. Wind-blown specimens of oceanic birds, during the south-west monsoon (June-August), are regular on the sea coast of Kerala. The sighting of six such species at Kadalundy again proves this statement.
On the Retirement of John S. Noyes
- C. NARENDRAN 47-49