Results 11 to 20 of about 1,702 (212)

Light effect on feeding of first instar Dipetalogaster maximus in xenodiagnosis [PDF]

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 1993
over a period of ten years suggest that a smaller quantity of blood is being ingested by hungry first instar bugs1 3. Since in Mexico the majority of bugs are first instar of diumal habit it was suggested that feeding might be related to light intensity2.
M.N.A. Menezes   +4 more
doaj   +5 more sources

Resistance of unfed first instar Dipetalogaster maximus to different enviromental conditions [PDF]

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 1994
We have already determined the favourable temperature and humidity conditions for rearing D ipeta logaster maximus1. In each of the two experiments described here two newly hatched lots of 40 first instar bugs were studied. One group was maintained in our insectary at a mean temperature o f280 C (range 27-30) and a mean humidity of 50 % (range 47-50 %).
Marco Tulio Garcia-Zapata   +2 more
doaj   +5 more sources

Egg Hatching and First Instar Falling Models of Metcalfa pruinosa (Hemiptera: Flatidae)

open access: yesInsects, 2020
Since the citrus flatid planthopper, Metcalfa pruinosa (Say), was introduced in Korea and many European countries, it has caused serious damage to various agricultural crops and landscape plants.
Min-Jung Kim, Sunghoon Baek, Joon-Ho Lee
doaj   +1 more source

New species of Homidia (Collembola, Entomobryidae) from eastern China with description of the first instar larvae

open access: yesZooKeys, 2011
Morphology of the first instar larvae of Collembola has considerably taxonomical and phylogenetic significance. We describe the first instar larvae for the first time in Homidia.
Zhi-xiang Pan, Shi-di Shi, Feng Zhang
doaj   +1 more source

First instar larva of Atractocerus brasiliensis (Lepeletier & Audinet-Serville, 1825) (Lymexylidae, Atractocerinae)

open access: yesPapéis Avulsos de Zoologia, 2013
The first instar larva of Atractocerus brasiliensis (Lepetelier & Audinet-Serville, 1825) from state of Goiás, Brazil, and reared in laboratory, is described and illustrated.
Sônia A. Casari, Fabiano F. Albertoni
doaj   +1 more source

Determination of application time and concentration of mineral oil against Pulvinaria aurantii (Hemiptera: Coccidae) in northern Iran [PDF]

open access: yesArthropods, 2018
To determine the most appropriate concentration and application time of mineral oil against Pulvinaria aurantii Cockerell, the reaction rate of egg hatching and the emergence of mobile cushion citrus instars to different concentrations of mineral oil in ...
Fatemeh Moghimi   +2 more
doaj  

Study of some biological aspects of the blowfly Chrysomya albiceps (Wiedemann 1819) (Diptera: Calliphoridae) in Jeddah, Saudi Arabia

open access: yesEgyptian Journal of Forensic Sciences, 2016
We reared Chrysomya albiceps (Wiedemann 1819) unadult stages (first larval instar, second larval instar, third larval instar and pupal stage) under four constant temperatures. Results proved that increasing temperature from 20 to 25, 30 and 35 °C reduced
Layla A.H. Al-Shareef   +1 more
doaj   +1 more source

The First Instar of Wohlfahrtia vigil Walker

open access: yesThe Journal of Parasitology, 1921
On July 9, 1907, in Ithaca, N. Y., the writer captured a female specimen, which when placed in the cyanide bottle, immediately deposited several larvae on the side of the glass. The species is therefore larviparous, like other Sarcophagids. As the adult of this species has several striking characteristics, it was possible, even at that date, and before
openaire   +2 more sources

Prey preference and biomass consumption of Macrolophus pygmaeus (Hemiptera: Miridae) fed Myzus persicae and Macrosiphum euphorbiae (Hemiptera: Aphididae)

open access: yesEuropean Journal of Entomology, 2007
The predation rate of the polyphagous predator Macrolophus pygmaeus (Rambur) when offered two aphid species, Myzus persicae (Sulzer) and Macrosiphum euphorbiae (Thomas), was investigated.
Dionyssios P. LYKOURESSIS   +2 more
doaj   +1 more source

Subversion of Atypical Mucin Traps by a Spore‐Coat Effector Blocks Cellular Immunity in Drosophila

open access: yesAdvanced Science, EarlyView.
While the entomopathogenic fungus Metarhizium robertsii can evade insect humoral immunity, its subversion of cellular defenses is still elusive. We identify Eac1 as a spore‐coat protein essential for infecting drosophilids by targeting atypical mucins (Sgf1 and Sgf2), which can entrap spores in a gel matrix and thereby facilitate hemocyte encapsulation.
Shiqin Li   +7 more
wiley   +1 more source

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