Päiväkirja-arkisto kohteelle toukokuu 2020

25. toukokuuta 2020

Platynota rostrana and Platynota flavedana

It has come to my attention that it is only the females of Platynota rostrana that have the distinctive square shape. The males actually look more like Platinota flavedana.

Male Platynota flavedana has a tapered shape and is usually quite dark. Male Platynota rostrana has the shape of P. flavedana Female Platynota rostrana has a squarish shape. Here you see both a male and female P. rostrana and a P. flavedana.

Lähetetty 25. toukokuuta 2020 00:21 käyttäjältä victorengel victorengel | 3 havaintoa | 5 kommenttia | Jätä kommentti

Beetles of 2020

This post will serve as a log of beetle observations sorted by family and seen in 2020.


Fungus Weevils
Anthribidae - Anthribidae sp. Anthribidae - Euparius marmoreus Anthribidae - Trigonorhinus limbatus The one on the far left flew into my eye. That picture shows it sitting on the pad of my finger.


Leaf Rolling Weevils
Attelabidae - Homoeolabus analis Attelabidae - Homoeolabus analis Attelabidae - Homoeolabus analis


Horned Powder-post Beetles, False Powderpost Beetles, Branch-and-Twig Borers, Augur Beetles
Bostrichidae - Lichenophanes bicornis Bostrichidae - Melalgus plicatus Bostrichidae - Xylobiops basilaris


Soldier Beetles
Cantharidae - Rhagonycha sp. Cantharidae - Rhagonycha sp.


Ground Beetles
Carabidae - Amara sp. Carabidae - Calathus sp. Carabidae - Harpalinae sp. I have no idea how to tell most of these apart. I'm relying on the IDs from made by others. I suppose I'll add notes on how to identify them when I learn how.
Carabidae - Lebia viridis. Carabidae - Notiobia sp. Carabidae - Platynina sp.
Carabidae - Plochionus sp. Carabidae - Selenophorus sp. Carabidae - Stenolophus dissimilis


Longhorn Beetles
Cerambycidae - Anelaphus debilis Cerambycidae - Euderces reichei Cerambycidae - Hypexilis pallida
Cerambycidae - Obrium maculatum Cerambycidae - Phoracanthini sp. Cerambycidae - Rhopalophora longipes
Cerambycidae - Smodicum cucujiforme Cerambycidae - Sternidius mimeticus


Leaf Beetles
Chrysomelidae - Adoxini sp. Chrysomelidae - Adoxini sp. Chrysomelidae - Algarobius sp.
Chrysomelidae - Brachypnoea lecontei Chrysomelidae - Derospidea brevicollis Chrysomelidae - Diabrotica undecimpunctata
Chrysomelidae - Eumolpinae sp. Chrysomelidae - Iphimeites sp. Chrysomelidae - Rhabdopterus sp.
Chrysomelidae - Xanthonia picturata Chrysomelidae - Xanthonia sp. Chrysomelidae - unknown sp.


Checkered Beetles
Claridae - Chariessa vestita


Lady Beetles
Coccinellidae - Coccinella semptempunctata Coccinellidae - Harmonia axyridis Coccinellidae - Harmonia axyridis
Coccinellidae - Harmonia axyridis larva


Silken Fungus Beetles
Cryptophagidae - Cryptophagini sp. Cryptophagidae - Cryptophagus setulosus


Snout and Bark Beetles, Weevils
Curculionidae - Conotrachelus nenuphar Curculionidae - Conotrachelus sp. Curculionidae - Dorytomus mucidus
Curculionidae - Lignyodes horridulus Curculionidae - Sitona californius


Predaceous Diving Beetles
Dytiscidae - Copelatus chevrolati Dytiscidae - Copelatus glyphicus


Click Beetles, Wire Worms
Elateridae - Aeolus sp. Elateridae - Alaus lusciosus Elateridae - Anchastus rufus
Elateridae - Dipropus simplex Elateridae - Esthesopus parcus Elateridae - Megapenthes insignis
Elateridae - Melanotus sp. Elateridae - Selonodon sp.


Pleasing Fungus Beetles
Erotylidae - Pharaxonotha kirshii


False Click Beetles
Eucnemidae - unidentified sp. These are distinguished from click beetles by the angle of attachment between first and second segments of the antennae


Variegated Mud-loving Beetles
Heteroceridae - Heterocerus sp. Heteroceridae - Tropicus pusillus


Water Scavenger Beetles
Hydrophilidae - Chaetarthria pallida Hydrophilidae - Tropisternus lateralis ssp. nimbatus I would never have guessed the Chaetarthria was in this family.


Line Flat Bark Beetles
Laemophloeidae - Laemophloeus terminalis


Lightning Beetles, Fireflies
Latridiidae - Photinus sp. Latridiidae - Photinus sp.


Minute Brown Scavenger Beetles
Latridiidae - Melanophthalma sp. Latridiidae - Melanophthalma sp. Both images are likely the same species. The second one is included to show the insect in flight.


False Darkling Beetles
Melandryidae - Osphya varians Melandryidae - Symphora flavicollis


Hairy Fungus Beetles
Mycetophagidae - Litargus tetraspilotus Mycetophagidae - Typhaea stercorea


Sap-Feeding Beetles
Nitidulidae - Omosita nearctica


False Blister Beetles
Oedemeridae - unidentified Oedemeridae - Asclerini sp. Oedemeridae - Sparedrus aspersus


Dethwatch, Spider, and Wood-borer Beetles
Ptinidae - Calymmaderus Ptinidae - Stegobium paniceum Ptinidae - Tricorynus


Scarab Beetles
Scarabidae - Diplotaxis sp. Scarabidae - Diplotaxis sp. Scarabidae - Phyllophaga sp. Phyllophaga sp. are larger than Diplotaxis sp. Generally, if the size is over 12mm, it's Phyllophaga sp.
Scarabidae - Ataenius sp. Scarabidae - Cotinis nitida It's likely that several species of both Diplotaxis an Phyllophaga have observations, but they've not been identified to species, so only obviously different ones are shown.


Marsh Beetles
Scirtidae - .Contacyphon variabilis Scirtidae - .Sacodes pulchella Scirtidae - .Sacodes thoracica


False Flower Beetles
Staphylinidae - Anaspis sp. Staphylinidae - Diclidia sp. Staphylinidae - Diclidia sp.


Rove Beetles
Staphylinidae - . Aleochara sp. Staphylinidae - . Lathrobiini sp. Staphylinidae - . Tachyporus sp.


Rove Beetles
Tenebrionidae - Alleculina sp. Tenebrionidae - Alleculina sp. Tenebrionidae - Eleodes goryi
Tenebrionidae - Tribolium confusum


Hide Beetles
Trogidae - Omorgus suberosus

Lähetetty 25. toukokuuta 2020 23:30 käyttäjältä victorengel victorengel | 0 kommenttia | Jätä kommentti