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ADULTICIDAL EFFECTS OF The influence of relative humidity on parasitoid
TRIFLUMURON AGAINST TRIBOLIUM development, survival and some selected life
CONFUSUM (DUVAL). Bang. J. Zool., 2006, history parameters was observed. At 30% RH.
34 (1), 105-110. developmental time was the highest, but at 70%
RH it was the lowest. The maximum number of
Triflumuron, a chitin synthesis inhibitor, progeny/female/day was 4.58 ± 0.56 which were
produced lethal effects to the eggs and adults of produced at 70% RH and minimum was 1.04 ±
Tribolium confusum. The ovicidal effects 0.13 at 30% RH. The sex ratios (% female) of P.
increased with the increase of exposure time westwoodi were 44.20, 58.16. 60.62 and 56.02 for
(LD 50, = 173.524 ppm at 96h exposure). The 30, 50, 70 and 90% RH. respectively. The
toxicity was decreased with the age of the eggs. survivorship of ovipositing females was the highest
The eggs laid by the young females (5-10 day at 70% RH, but the lowest at 30% RH.
old) were more susceptible than those laid by the
older females (45-50 day old). Both larval and 595.76 ZOOLOGY : BEETLES
adult feeding on the treated food with 0.002 ppm
of triflumuron caused 100% mortality in adult 180 BASAK, P.K. (Dept. of Zoology,
male within 120 days. Feeding on the treated Bidhannagar College, Kolkata, India) & PAL, T.
food by only the adults produced no significant K. (Zoological Survey of India, Kolkata, India).
lethal effect. The females were comparatively STUDY OF BEETLES (COLEOPTERA)
tolerant to the triflumuron than the males. ASSOCIATED WITH STORED PRODUCTS OF
KOLKATA, INDIA III. FAMILY:
178 PATOARY, M.F. & KHAN, M.A.R. STAPHYLINIDAE. J. Bio-Sci., 2006, 14 , 49-55.
(Dept. of Zoology, Rajshahi University,
Rajshahi). INFLUENCE OF DIFFERENT Six species of Staphylinidae under the genera
YEAST LEVELS WITH WHEAT FLOUR ON Philonthus Curtis, Coenonica Kraatz, Aleochara
THE GROWTH AND DEVELOPMENT OF Grouvelle and Oligota Mannerheim are reported
THE LESSER MEALWORM ALPHITOBIUS from 18 different commodities in Kolkata area. All
DIAPERINUS (PANZER) (COLEOPTERA : these species are new to the stored product habitat
TENEBRIONIDAE). Bang. J. Zool., 2006, 34 from India. Their diagnostic features with
(2), 221-227. illustrations, distribution and habitat records are
The present investigation reports the effects of dealt with and an identification key to these species
various yeast levels of 1, 5, 10, 15, 20 and 25% is given.
with wheat flour on the growth and development of
the lesser mealworm, Alphitobius diaperinus 181 KHALEQUZZAMAN, M. (Dept. of
(Panzer). A 5% yeast supplementation proved to be Zoology, Rajshahi University, Rajshahi) ; ALI, M.
optimum for the beetle, and higher yeast levels M.; JESMINE, M. (Dept. of Applied Chemistry
were detrimental for its normal growth and and Chemical Technology, Rajshahi University,
development. Rajshahi); TAHER, M.A. (BCSIR, Rajshahi);
ARA, J. & KHANAM, J.A. (Dept. of
179 RAHMAN, M.M. & ISLAM, W. (Institute Biochemistry and Molecular Biology, Rajshahi
of Biological Sciences, Rajshahi University, University, Rajshahi). TOXICITY OF SOME
Rajshahi). INFLUENCE OF REALATIVE METAL-CYSTINE COMPLEXES AGAINST
HUMIDITY ON PLASTANOXUS WESTWOODI CONFUSED FLOUR BEETLE TRIBOLIUM
(KIEFFER) (HYMENOPTERA: BETHYLIDAE), CASTANEUM (COLEOPTERA: TENEBRIONIDAE).
AN ECTOPARASITOID OF RED FLAT GRAIN Bang. J. Life Sci., 2007, 19 (1), 115-119.
BEETLE, CRYPTOLESTES PUSILLUS (SCHON.)
(COLEOPTERA: CUCUJIDAE). Bang. J. Zool., Metal-cystine complexes of some divalent metals
2007, 35 (2), 285-291. namely Ni(II), Cd(Il), Hg(II) and Pb(II) have been
synthesized and their insecticidal activity were
Plastanoxus westwoodi (Kieffer) is one of the evaluated against Tribolium castaneum. Probit
dominant ectoparasitoids of Cryptolestes pusillus.
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