Life History, Habits, and Damage of the Boxelder Leaf Gall Midge, Contarinia negundifolia Felt (Diptera: Cecidomyiidae) in Michigan

1966 ◽  
Vol 98 (7) ◽  
pp. 777-784 ◽  
Author(s):  
Louis F. Wilson
Keyword(s):  
Life History ◽  
Gall Midge ◽  
Pupal Stage ◽  
Head Capsule ◽  
Larval Instars ◽  
Acer Negundo ◽  
Stage Of Development ◽  
Young Leaves ◽  
Host Mortality ◽  
Third Instar Larvae

AbstractThe boxelder leaf gall midge is univoltine in Michigan. Adults emerge after the first few warm days in April, and deposit numerous eggs within the folded young leaves of boxelder (Acer negundo L.). Larval eclosion occurs a few days later, and gall development begins shortly after. Head capsule measurements revealed three larval instars. Third-instar larvae drop to the ground near the end of May, work their way into the soil, and construct cocoons. Pupation occurs in late August, and overwintering takes place in the pupal stage. Because oviposition occurs almost always on leaves in a certain stage of development and an estimated 50% of leaves will therefore escape attack, host mortality apparently cannot be caused by this insect.

THE STAGES OF ERANNIS VANCOUVERENSIS (LEPIDOPTERA: GEOMETRIDAE) AND LIFE HISTORY NOTES

1973 ◽  
Vol 105 (4) ◽  
pp. 605-612 ◽  
Author(s):  
David Evans
Keyword(s):  
British Columbia ◽  
Life History ◽  
Virus Disease ◽  
Pupal Stage ◽  
Early Spring ◽  
Deciduous Trees ◽  
Life Stages ◽  
Larval Instars ◽  
Central California ◽  
Young Leaves

AbstractErannis vancouverensis Hulst occurs from northern British Columbia to central California, and has been occasionally reported at infestation levels. The larvae feed on young leaves of several species of deciduous trees; winter is passed in the egg or sometimes in the pupal stage; adults emerge during late autumn or occasionally during winter or early spring; females are wingless. The life stages, including larval instars, are described here in detail. Virus disease and parasitism by tachinid flies help control the species.

LIFE HISTORY AND HABITS OF THE WILLOW BEAKED GALL MIDGE, MAYETIOLA RIGIDAE (DIPTERA: CECIDOMYIIDAE), IN MICHIGAN

1968 ◽  
Vol 100 (2) ◽  
pp. 202-206 ◽  
Author(s):  
Louis F. Wilson
Keyword(s):  
Life History ◽  
Gall Midge ◽  
Head Capsule ◽  
Instar Larva ◽  
Larval Instars ◽  
The Third ◽  
First Instar ◽  
Salix Discolor

AbstractThe willow beaked gall midge, Mayetiola rigidae (Osten Sacken), is univoltine in Michigan. Adults emerge from bud galls on Salix discolor Mühl. and other willows on mornings of warm days in early April. Eggs are laid singly on or near the buds of the host. Head capsule measurements indicate three larval instars. The last two instars each possess a spatula. The first-instar larva emerges in late April and penetrates the soft bud tissues. The gall begins to develop at the beginning of the second instar in mid-May. The third instar appears in early July and continues to enlarge the gall until fall. Prior to overwintering, the larva lines the inner chamber of the gall with silk and constructs one to seven silken septa across the passageway. Pupation occurs in mid-March. The gall deforms the stem and occasionally a galled branch dies or breaks off.

LIFE HISTORY AND HABITS OF THE PINE CONE WILLOW GALL MIDGE, RHABDOPHAGA STROBILOIDES (DIPTERA: CECIDOMYIIDAE), IN MICHIGAN

1968 ◽  
Vol 100 (4) ◽  
pp. 430-433 ◽  
Author(s):  
Louis F. Wilson
Keyword(s):  
Life History ◽  
Soft Tissues ◽  
Gall Midge ◽  
Head Capsule ◽  
Instar Larva ◽  
Shoot Tip ◽  
Larval Instars ◽  
First Instar ◽  
Pine Cone

AbstractThe pine cone willow gall midge is univoltine in Michigan. Adults emerge from the galls on Salix eriocephala Michx. and other willows on warm days in late April or early May. Eggs are laid singly on the leaves and stems of the host. Head capsule measurements indicate three larval instars. The first-instar larva emerges in early May and penetrates the soft tissues at the base of the developing shoot tip. Shortly thereafter, the gall begins to develop and is about half grown by the time the second-instar larva appears in late May. The last-instar larva appears in July. Before overwintering, the larva constructs a cocoon which may or may not be closed at the top. Pupation occurs in early April. Numerous inquilines and parasites inhabit the developing and mature gall.

LIFE HISTORY AND HABITS OF RHABDOPHAGA SP. (DIPTERA: CECIDOMYIIDAE), A GALL MIDGE ATTACKING WILLOW IN MICHIGAN

1968 ◽  
Vol 100 (2) ◽  
pp. 184-189 ◽  
Author(s):  
Louis F. Wilson
Keyword(s):  
Life History ◽  
Gall Midge ◽  
Taxonomic Status ◽  
Head Capsule ◽  
Instar Larva ◽  
Larval Instars ◽  
The Third ◽  
First Instar ◽  
Third Instar Larva ◽  
Salix Discolor

AbstractThe taxonomic status of Rhabdophaga sp. cannot be determined until a complete revision of the genus occurs. Rhabdophaga sp. on Salix discolor Mühl. is univoltine in Michigan. Adults emerge in mid-April, and shortly afterward deposit numerous eggs on the setaceous undersurface of emerging willow leaves; larval eclosion occurs between 1 and 2 weeks later. Head capsule measurements reveal three larval instars. The first-instar larva bores into the stem until it reaches the pith. Gall development begins about mid-June shortly after the second instar appears. The third-instar larva overwinters in the gall and the pupa appears in early April. The prolate gall is found on the proximal ends of young willow shoots; heavily galled shoots usually die.

Characteristics of Attack of Coastal Timbers by Pselactus spadix (Herbst) (Col.: Curc.: Cossoninae) and an Investigation of its Life History

Holzforschung ◽  
2002 ◽  
Vol 56 (4) ◽  
pp. 335-359 ◽  
Author(s):  
P. Oevering ◽  
A.J. Pitman
Keyword(s):  
Life History ◽  
Life Cycle ◽  
Pinus Sylvestris ◽  
Scots Pine ◽  
Wood Surface ◽  
Development Time ◽  
Adult Emergence ◽  
Head Capsule ◽  
Adult Longevity ◽  
Larval Instars

Summary Pselactus spadix attack of marine timbers was characterised by circular emergence holes 1.48±0.05 mm in diameter and adult tunnels (1.49±0.34 mm) breaking through the wood surface. Larval tunnels measured 0.407–1.892 mm in diameter, initiated from adult tunnels and increased in diameter away from the adult tunnel terminating in frass free pupal chambers (1.6±0.3 mm × 3.5±0.7 mm). Observations of larval tunnel locations indicated oviposition occurred inside the adult tunnels. P. spadix life history was investigated in Scots pine (Pinus sylvestris) heartwood at 22±2 °C and 99±1% r.h. Mean adult longevity was 11.5±6.5 months, with mean post-mating longevity for males (11.7±2.9 months) significantly longer than for females (6.3±1.1 months). Adults of at least 2–3 months old were found mating in galleries, which, with observations of the larval tunnel pattern, indicated P. spadix can complete its life cycle without emerging from wood. Five larval instars were identified by measurement of 1722 head capsule widths and application of Dyar's law. Mean development time from 2nd instar to adult emergence was 70.5±6.9 weeks and pupation took 14.6±5.8 days. Development from 2nd instar to reproductive adult took between 17–20 months, with life cycle approximating 24 months at 22±2 °C and 99±1%

The Life History of Onesia accepta Malloch (Diptera, Calliphoridae)

Parasitology ◽  
1933 ◽  
Vol 25 (3) ◽  
pp. 342-352 ◽  
Author(s):  
Mary E. Fuller
Keyword(s):  
Life History ◽  
Pupal Stage ◽  
Body Cavity ◽  
The Body ◽  
External Morphology ◽  
Feeding Period ◽  
Larval Instars ◽  
The Third ◽  
History Of

The life history of Onesia accepta Mall. is described. This species is parasitic on the earthworm Microscolex dubius Fletcher. The first and second larval instars are passed under the skin and the third instar in the body cavity of the host. The feeding period of the maggot is approximately 20 days, and the pupal stage about 12 days.The external morphology of the three larval instars and of the puparium is described in detail.

LIFE HISTORY, HABITS, AND DAMAGE OF A GALL MIDGE, OLIGOTROPHUS PAPYRIFERAE (DIPTERA: CECIDOMYIIDAE), INJURIOUS TO PAPER BIRCH IN MICHIGAN

1968 ◽  
Vol 100 (6) ◽  
pp. 663-669 ◽  
Author(s):  
Louis F. Wilson
Keyword(s):  
Life History ◽  
Gall Midge ◽  
Betula Papyrifera ◽  
Leaf Base ◽  
Paper Birch ◽  
Third Instar Larvae

AbstractOligotrophus papyriferae Gagné is univoltine in Michigan. Adults emerge in mid-May and the females deposit small egg clusters on the underside of the leaf near the petiole of paper birch (Betula papyrifera Marsh.). Larval eclosion occurs 1–2 weeks later; there are three instars. The larvae bore into and down the petiole and enter the stem or a bud attending the leaf base. Galls appear in early August. There are petiole-bud and petiole-stem galls, depending on which tissues are infested. Third-instar larvae vacate the galls in late September, work their way into the litter, and construct cocoons in which they overwinter. Pupation occurs the following May. Trees from 2 to 30 ft tall are attacked; lower branches are attacked the heaviest. Large galls kill buds, twigs, and entire branches. Small galls leave deeply indented branch scars and deformed limbs.

Life History and Some Habits of the Pine Gall Weevil, Podapion gallicola Riley, in Michigan

1965 ◽  
Vol 97 (9) ◽  
pp. 962-969
Author(s):  
Louis F. Wilson
Keyword(s):  
Life History ◽  
Life Cycle ◽  
Adult Emergence ◽  
Pinus Resinosa ◽  
Head Capsule ◽  
Red Pine ◽  
Larval Instars ◽  
The Third ◽  
Second Year

AbstractThe pine gall weevil has a 3-year life cycle on red pine (Pinus resinosa Ait.) in Michigan. Adults oviposit from June to August, depositing 1 to 10 eggs in a niche chewed in the bark of a branch internode. Larvae first emerge in August, feed as a group toward the cambium, and then radiate out along the xylem. Head capsule measurements from 1585 larvae indicate that there are three larval instars. Gall development begins in June of the second year, shortly after the larvae begin the second instar. The third instar commences in June of the third year. Pupation occurs in May of the fourth season; adult emergence follows in June. Overwintering occurs in the egg stage or in the three larval instars. Adults do not overwinter, and apparently three distinct broods occur in Michigan.

BIONOMICS AND PATTERN OF ATTACK OF THE RED PINE SHOOT MOTH, DIORYCTRIA RESINOSELLA (LEPIDOPTERA: PYRALIDAE), IN WISCONSIN

1983 ◽  
Vol 115 (9) ◽  
pp. 1169-1175 ◽  
Author(s):  
J. H. Hainze ◽  
D. M. Benjamin
Keyword(s):  
Sex Ratio ◽  
Pinus Resinosa ◽  
Head Capsule ◽  
Red Pine ◽  
Flight Period ◽  
Larval Instars ◽  
Shoot Borer ◽  
First Instar ◽  
Lepidoptera Pyralidae ◽  
Third Instar Larvae

AbstractThe bionomics of the red pine shoot moth, Dioryctria resinosella Mutuura, a newly described species of shoot borer in red pine, Pinus resinosa Ait., were investigated in Wisconsin sand plains plantations. The appearance of eggs, larvae, pupae, and adults are described. Head-capsule measurements indicated five larval instars. First-instar larvae overwintered in hibernacula. Shoot feeding was generally initiated by third-instar larvae in late May. Cones also were attacked. Pupation occurred in July. The flight period extended from mid-July to mid-September. The sex ratio was 0.53. Only red pine shoots and cones were attacked in a mixed pine stand. Infestation rates were highest along plantation edges, in the top half of the crown and in plantations greater than 20 years of age. Hyssopus rhyacioniae Gahan occurred most frequently among parasitoids reared from larvae and pupae.

scholarly journals THE BIOLOGY OF CHORISTONEURA HOUSTONANA (LEPIDOPTERA: TORTRICIDAE), A PEST OF JUNIPERUS SPECIES

1968 ◽  
Vol 100 (7) ◽  
pp. 750-763 ◽  
Author(s):  
E. A. Heinrichs ◽  
Hugh E. Thompson
Keyword(s):  
Constant Temperature ◽  
Pupal Stage ◽  
Head Capsule ◽  
Egg Development ◽  
Larval Instars ◽  
Head Capsule Width

AbstractChoristoneura houstonana (Grote) lays eggs singly in July. Egg development ranged from 8 to 11 days, with the majority hatching 10 days after oviposition.Larvae are solitary, and mine during early instars but later instars feed externally on leaves in shelters made by webbing foliage together. There is one generation each year and overwintering occurs in a hibernaculum, in mined leaves. Field-collected head-capsule width frequencies indicated nine larval instars. Rearing larvae on seedling junipers indoors indicated a range of 8–11 instars.Pupation occurs during June and July in the shelter where the larva feeds. The pupal stage lasted about 10 days at a constant temperature of 80°F.

Sign in / Sign up

Export Citation Format

Share Document