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Red Admiral (Vanessa atalanta) female and eggs on Stinging Nettle.
Skunk's Misery, Middlesex County, Ontario, Canada.
April 26, 2017.
I took a quick shot of this Red Admiral preparing to lay an egg, and discovered 4 eggs already in place (see arrows). ;-)
Virtually every Stinging Nettle in sight had Red Admiral eggs on it. Red Admiral caterpillars are frequently attacked by parasites, so it will be interesting to see how many survive.
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Kingdom=Animalia
Phylum=Arthropoda
Class=Insecta
Order=Coleoptera
Suborder=Polyphaga
Infraorder=Scarabaeiformia
Superfamily=Scarabaeoidea
Family=Scarabaeidae
Subfamily=Dynastinae
Genus=Cryptodus ID by Joe Walker and Allen Sundholm
Common name=Scarab beetle
Insecta: Lepidoptera
Tortricidae, Olethreutinae, Enarmoniini
genus and species indeterminate (tribe Enarmoniini)
Nam Chung Valley, North District, New Territories, Hong Kong
Insecta: Lepidoptera
Erebidae, Arctiinae, Arctiini
Amsactoides guangxicaAmsactoides guangxica
Tai Yeung Che, Lam Tsuen Valley, Tai Po, New Territories, Hong Kong
Finglas Garden 16-04-2020
Scientific classification
Kingdom:Animalia
Phylum:Arthropoda
Class:Insecta
Order:Diptera
Family:Syrphidae
Genus:Eristalis
Species:E. tenax
Binomial name
Eristalis tenax
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Holly Blue ( Celastrina argiolus) Butterfly
Scientific classification
Kingdom:Animalia
Phylum:Arthropoda
Class:Insecta
Order:Lepidoptera
Family:Lycaenidae
Genus:Celastrina
Species:C. argiolus
Binomial name
Celastrina argiolus
Habitat: Locally found where remnants of woodland contain Holly. It is sometimes found in urban gardens and parks with suitable habitats.
It is double brooded from Dublin southwards and single brooded in the north.
Larval Food Plant: Holly Ilex aquifolium
Ivy Hedera helix
Flight Time: April and May
Mid-July to September (second generation)
Hibernation: Overwinters as a pupa.
In both sexes the ground colour of the upper wings of the adult is silvery-blue and tinged with lilac.
In the male upperwings there is a narrow black band on the margins of the forewings, wider at the apex and becoming thinner at the tornus. Chequered margins at termination of veins on forewings. The black marginal band is absent on the hindwings.
The female upperwings are darker than in the males and have a more pronounced and wider marginal band on the forewing. Each hindwing has a series of 6 submarginal black spots. Chequered margins at termination of veins on the forewings.
The underside in both sexes is similar the ground colour being a bluish-white with black spots.
Life Cycle of the Holly Blue
Ovum:
The white disc shaped egg is laid singly at the base of unopened flower buds on Holly in the spring brood and on Ivy in the summer brood.
Eggs hatch after 10-16 days, depending on the season.
Larva:
This fairly stout larva measures up to 16 mm in length, tapering towards the extremities.
The larva has a few recognised colour forms but usually when fully grown it is a translucent pale green sometimes with purplish-pink dorsal and lateral stripes. It has a shiny black retractile head.
On the dorsal surface of the 10th segment there is a honey gland (Newcomer's gland) whose secretions are attractive to ants. The body is covered with short whitish setae.
The larva emerges in May and feeds until early July inside the developing drupes on the female Holly tree and on the young terminal leaves of the male Holly tree.
The second brood larva feeds on the developing buds or flowers of Ivy during late August and September.
Prior to pupation the larva becomes a dull purplish colour and wanders from its food plant to pupate.
This larval stage lasts c.26 days.
See Holly Blue parasite - Listrodromus nycthemerus below.
Pupa:
Pupation probably takes place secreted by twigs and bark among the tangled roots and dead leaves within the growth of Ivy or on the undersurface of a Holly leaf. The pupa is attached by cremasteral hooks to a silk pad and supported by a silken girdle.
Pupa from the spring generation hatch within 10-18 days. Those from the summer generation overwinter , spending about 6 months in the pupal state.
Adult:
The adult emerges and is on the wing from mid-April to June and again in mid-July to September where it may be seen flying around holly bushes above head height.
Holy Blue Parasite:
The host specific parasitic Ichneumon wasp, Listrodromus nycthemerus, targets the Holly Blue butterfly by laying its egg in the larvae.
Here the Listrodromus grub lives and feeds on the body tissue of the developing butterfly larva.
Eventually the life cycle of this parasitoid, which is approx. 11mm in length, is completed inside the host and results in the emergence of a single adult Listrodromus wasp from what appears to be a normally formed Holly Blue pupa. The pupa dies soon after the emergence of the wasp.
The wasp will then seek new generation Holly Blue larvae in which to inject its egg.
There is evidence that the wasp population gradually builds up over a number of years and eventually, when it gets plentiful, kills a large proportion of pupae resulting in a 'crash' in Holly Blue numbers.
This produces a shortage of food for the parasitoid and its numbers also crash allowing the Holly Blue butterfly population return to normal.
The length of the Holly Blue-Ichneumon wasp cycles observed in Britain - from boom to bust - is about seven years.
L: ~35 mm
Xylocopa latipes DRURY, 1773
Genus: Xylocopa
Tribe: Xylocopini
Subfamily: Xylocopinae (Carpenter bees, Holzbienen)
Family: Apidae
Superfamily: Apoidea
Suborder: Apocrita
Order: Hymenoptera
Class: Insecta
Phylum: Arthropoda
more info: vespa-bicolor.net/main/solitary-bees/xylocopa-latipes.htm
Indonesia, W-Java, 10 km S Tangerang: BSD (Kampung), 45m asl., 04.06.2012
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IMG_2056
Red-tailed bumblebee
Bombus lapidarius 25-08-2019
Scientific classification
Kingdom:Animalia
Phylum:Arthropoda
Class:Insecta
Order:Hymenoptera
Family:Apidae
Genus:Bombus
Subgenus:Melanobombus
Species:B. lapidarius
Binomial name
Bombus lapidarius
Bombus lapidarius is a species of bumblebee in the subgenus Melanobombus. Commonly known as the red-tailed bumblebee, B. lapidarius can be found throughout much of Central Europe. Known for its distinctive black and red body, this social bee is important in pollination
Taxonomy and phylogeny
The red-tailed bumblebee is a part of the order Hymenoptera, family Apidae, and the genus Bombus, which includes many species including Bombus genalis, Bombus angustus, and Bombus nobilis
Description and identification
Red-tailed cuckoo bumblebee parasitizes the nests of the red-tailed bumblebee
The red-tailed bumblebee is typically distinguished by its black body with red markings around the abdomen. Worker females and the queen look similar, except the queen is much larger than the worker females. Males typically have both the red and black coloration along with a yellow band around the abdomen and yellow markings on the face. Further, B. lapidarius tend to have a medium-sized proboscis, which is significant in that it allows the species to be a good pollinator. These bees do not typically form extensive or complex colonies. Nests usually only contain a few hundred bees, at most. An average colony consists of about 100 to 200 worker bees.
Distribution and habitat
Bombus lapidarius is often found throughout Europe, including Britain and Ireland as well as parts of Greece, Germany, Sweden and Finland. This species typically has a fairly wide distribution. As described in the foraging patterns section, they can fly over 1500 meters to better forage for food. They typically are found in temperate regions. Further, colonies are often found in open terrain.
B. lapidarius nests have been found in many different habitats, but the bees typically prefer open terrain as opposed to more heavily forested landscapes.
Insecta: Lepidoptera
Crambidae, Acentropinae
Nymphicula sp. indeterminate
Tai Yeung Che, Lam Tsuen Valley, Tai Po, New Territories, Hong Kong
Insecta: Lepidoptera
Zygaenidae, Chalcosiinae
Cyclosia papilionaris
Tai Po Kau Headland, New Territories, Hong Kong
recorded during a "National Moth Week" event
Class: Insecta.
Order: Coleoptera.
Suborder: Polyphaga.
Infraorder: Cucujiformia.
Superfamily: Cucujoidea.
Family: Coccinellidae.
Subfamily: Coccinellinae.
Tribe: Coccinellini.
La marieta és un insecte de la famÃlia dels Coccinèlids.
És arrodonida, de color vermell brillant amb set punts negres. Fa uns 5-8 mm de llargada.
Té sis potes i dues antenes curtes.
S'alimenta de petits insectes, pugons i à cars que viuen en les plantes.
La femella reparteix els ous en petits grups escampats per les plantes.
La larva és fosca i la pupa s'assembla a un excrement d'ocell.
Viu a les plantes de les que s'alimenta.
Per les articulacions de les potes deixa anar un lÃquid desagradable amb el que es defensa.
Hi ha diferents tipus de marietes; n'hi ha de color negre, vermell, taronja i groc, amb diferent quantitat de punts o ratlles.
Al món hi ha més de 5.000 espècies de marietes.
La mariquita es un insecto de la familia de los Coccinelidos.
Es redondeada, de color rojo brillante con siete puntos negros. Mide unos 5-8 mm de longitud.
Tiene seis patas y dos antenas cortas.
Se alimenta de pequeños insectos, pulgones y ácaros que viven en las plantas.
La hembra reparte los huevos en pequeños grupos esparcidos por las plantas.
La larva es oscura y la pupa se parece a un excremento de pájaro.
Vive en las plantas de las que se alimenta.
Por las articulaciones de las patas suelta un lÃquido desagradable con el que se defiende.
Hay diferentes tipos de mariquitas; las hay de color negro, rojo, naranja y amarillo, con diferente cantidad de puntos o rayas.
En el mundo hay más de 5.000 especies de mariquitas.