The Significance of Oviposition Rates in the Egg Parasite, Trichogramma Embryophagum Htg

1966 ◽  
Vol 17 (3) ◽  
pp. 350-375 ◽  
Author(s):  
H. Klomp ◽  
B.J. Teerink
Keyword(s):  
Egg Parasite

scholarly journals A NEW SPECIES OF TELENOMUS PARASITIC ON GEOCORIS (HYMENOPTERA: PROCTOTRUPOIDEA; HEMIPTERA: LYGAEIDAE) IN CALIFORNIA

1973 ◽  
Vol 105 (11) ◽  
pp. 1407-1411 ◽  
Author(s):  
Gordon Gordh ◽  
R. Akinyele Coker
Keyword(s):  
New Species ◽  
Natural History ◽  
National Museum ◽  
Additional Material ◽  
Geocoris Punctipes ◽  
Egg Parasite ◽  
Cotton Fields ◽  
A New Species ◽  
The U.S

AbstractTelenomus reynoldsi n. sp. (Scelionidae: Telenominae) is described as an egg parasite of Geocoris punctipes Say and G. pallens Stål in California. The parasite has been recovered from cotton fields at Thermal and Indio, and from strawberry fields at El Toro, California. Additional material deposited in the U.S. National Museum of Natural History has been recovered from Geocoris collected at Buttonwillow and Weed, California.

Notes on the Sweet Potato Pyralid Moth, Megastes grandalis, Guen

1926 ◽  
Vol 16 (4) ◽  
pp. 369-372
Author(s):  
J. W. Cowland
Keyword(s):  
Sweet Potato ◽  
West Indies ◽  
Imperial College ◽  
Immature Stages ◽  
Tropical Agriculture ◽  
Egg Parasite ◽  
Eating Out ◽  
Pyralid Moth ◽  
Place Descriptions ◽  
Larval Parasites

Megastes grandalis was first reported from Brazil ; there have been no other records until 1919, when it was reported from Trinidad as a serious pest during certain seasons of the year to the roots and tubers of the sweet potato. At present this is the only known food-plant.The eggs are laid two or three together in the axils of the leaf-petioles or on the underside of the leaf. The laxva at first feeds near the place where it hatches, then travels to the base of the stem and bores its way in, eating out tunnels through the roots and tubers, leaving the cortex untouched. It pupates in a silken cocoon near the surface. The moths live only a few days during which oviposition takes place. Descriptions of the immature stages are given. The writer obtained a Trichogramma egg parasite and Tachinid larval parasites.This work was undertaken at the Imperial College of Tropical Agriculture, Trinidad, West Indies.The Imperial Bureau of Entomology kindly identified the parasites.

The egg-parasite of Sialis lutaria: a study of the influence of the host upon a dimorphic parasite

Parasitology ◽  
1937 ◽  
Vol 29 (4) ◽  
pp. 539-553 ◽  
Author(s):  
George Salt
Keyword(s):  
Special Interest ◽  
The Other ◽  
Trichogramma Evanescens ◽  
Winged Form ◽  
Egg Parasite ◽  
Pure Lines

1. Nearly a quarter of a million eggs of Sialis lutaria were collected at Cambridge in 1936. About 0·6 per cent of them were attacked by a parasite.2. The egg-parasite of Sialis is distinct from Trichogramma evanescens, and is to be called T. semblidis (Aurivillius).3. The male of Trichogramma semblidis occurs in two forms. Neither consists merely of imperfect or degenerate individuals of the other, for the two forms are equally large and differ constantly and fundamentally in several characters. The species, therefore, exhibits true dimorphism.4. Rearing experiments involving isolated pure lines show that it is principally the host that determines which form of the parasite shall emerge. Males reared on Sialis are of the apterous form; those reared on three species of Lepidoptera are of the winged form.5. The dimorphism of T. semblidis is discussed in relation to other examples of dimorphism in the Hymenoptera. It is shown to have several features of special interest.

REDESCRIPTION OF AND HOST-INDUCED ANTENNAL VARIATION IN ANAPHES IOLE GIRAULT (HYMENOPTERA: MYMARIDAE), AN EGG PARASITE OF MIRIDAE (HEMIPTERA) IN NORTH AMERICA

1988 ◽  
Vol 120 (10) ◽  
pp. 893-901 ◽  
Author(s):  
John T. Huber ◽  
V.K. Rajakulendran
Keyword(s):  
North America ◽  
Morphological Variation ◽  
Relative Size ◽  
Structural Features ◽  
Lygus Hesperus ◽  
Egg Parasite ◽  
Anaphes Iole

AbstractAnaphes iole Girault is redescribed from specimens reared from Lygus hesperus Knight and Pseudatomoscelis seriatus (Reuter). Anaphes anomocerus, A. ovijentatus, and A. perdubius are synonyms of A. iole. Host-induced morphological variation is discussed. The main attributes that vary with host are the relative size of certain funicular articles and their complement of sensory ridges. There is no morphological overlap between populations as indicated by measurements of most other structures. However, certain structural features that can be used to define the species unequivocally were found.

scholarly journals On an Egg-Parasite of the Currant Saw-Fly(Nematus Ventricosus)

1883 ◽  
Vol 4 (109-110) ◽  
pp. 48-51 ◽  
Author(s):  
Joseph Albert Lintner
Keyword(s):  
Egg Parasite
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