EFFECT OF PRESSURIZED CO2, N2 AND AIR GASES ON DIFFERENT STAGES OF Oryzaephilus surinamensis (L.) AND Stegobium paniceum (L.)

2017 ◽  
Vol 44 (6) ◽  
pp. 2255-2266
1970 ◽  
Vol 102 (8) ◽  
pp. 1041-1047 ◽  
Author(s):  
S. R. Loschiavo ◽  
L. B. Smith

AbstractA national survey shows that the merchant grain beetle, Oryzaephilus mercator Fauvel, has been present in Canada since at least 1925 and that it has become firmly established as a household pest of processed cereal products preferably of high oil content, but has not been reported from stored grain. A related species, the saw-toothed grain beetle, Oryzaephilus surinamensis (L.), infests both stored grain and processed cereal products. Illustrations are provided to show the morphological characters by which the two species may be recognized and separated.


2020 ◽  
Vol 2 (2) ◽  
pp. 72-78
Author(s):  
A.S. Sazhnev ◽  
◽  
V.V. Anikin ◽  

The article presents the results of research of the using light traps (luminescent lamp Actinic 6W) for collecting Coleoptera in the Saratov city. Entomological material was collected by the second author in the period from 1.06 to 2.10.2019. In 2019, 52 species of Coleoptera of 22 families from different ecological groups were recorded. A relatively high proportion of adventitious species remains in 17.3– 30.7% of the presented fauna was presented. For two years the 14 species of alien and cryptogenic Coleoptera species were observed, that is 24.5% of the adventive fauna of the Saratov Province. Among invasive species Attagenus smirnovi, Stegobium paniceum, Atomaria lewisi, Harmonia axyridis, Gnatocerus cornutus, and Orchestes steppensis were record for the first time in 2019. It to use bringing on light as one of the available and low-cost ways to identify alien and cryptogenic organisms in urban areas is recommended.


1977 ◽  
Vol 60 (5) ◽  
pp. 1223-1226
Author(s):  
Alan R Olsen

Abstract Male saw-toothed grain beetles (Oryzaephilus surinamensis) and merchant grain beetles (O. mercator) were dissected, and the major differences in their genitalia were reviewed. Differences in the morphology of the internal sac, setae of the lateral lobes, chitinous rods of the median lobe, and setae on the eighth sternite are illustrated with photomicrographs. The only other difference between the 2 species is the outline of the adult head. The dissection procedure is described briefly.


1968 ◽  
Vol 46 (3) ◽  
pp. 469-473 ◽  
Author(s):  
G. R. F. Davis

Oryzaephilus surinamensis (L.), reared on three holidic diets at 32 ± 2 °C and 75 ± 5% relative humidity, required a dietary source of phenylalanine, irreplaceable by dietary tyrosine. This insect also required a dietary source of tyrosine for normal rate of development. On diets containing 1.0 mg of phenylalanine per gram, it used supplementary glycine more effectively than supplementary tyrosine as a replacement for phenylalanine omitted from the diet. On diets containing 1.0 mg of tyrosine per gram, it used supplementary phenylalanine more effectively than glycine. Emergent adults weighed less with 1.0 mg of dietary phenylalanine per gram than with higher concentrations. Adult weight was unaffected by decreasing concentrations of dietary tyrosine.


1987 ◽  
Vol 13 (8) ◽  
pp. 1871-1879 ◽  
Author(s):  
Hisashi Kodama ◽  
Mikio Ono ◽  
Masahiro Kohno ◽  
Akio Ohnishi

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