http___www.theskepticalmoth.com_2011_06_20_monday-moth-2__shared_email_msg_fail_lang_hr_1.xml
1.1 2.1 3.1 3.2 3.3 4.1 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 6.1 7.1
Monday npauj By Chris Grinter, nyob rau lub rau hli ntuj 20th, 2011 Kuv yuav khaws lub npas dov nrog no series thiab kom nws mus dua. Kuv yuav tau siab rau highlighting ib hom kab tshiab txhua lub limtiam ntawm lub loj heev collections no nyob rau California Academy of Sciences. Qhov no yuav tsum tau muab rau kuv txaus cov khoom rau… puas tsawg ob peb xyoos. Grammia edwardsii (Erebidae: Arctiinae) This week’s specimen is the tiger moth Grammia edwardsii. Up until a few years ago this family of moths was considered separate from the Noctuidae – but recent molecular and morphological analysis shows that it is in fact a Noctuid. The family Erebidae was pulled out from within the Noctuidae and the Arctiidae were placed therein, turning them into the subfamily Arctiinae. OK boring taxonomy out of the way – all in all, it’s a beautiful moth and almost nothing is known about it. This specimen was collected in San Francisco in 1904 – in fact almost all specimens known of this species were collected in the city around the turn of the century. While this moth looks very similar to the abundant and widespread Grammia ornata, close analysis of the eyes, wing shape and antennae maintain that this is actually a separate species. I believe the last specimen was collected around the 1920’s and it hasn’t been seen since. It is likely and unfortunate that this moth may have become extinct over the course of the last 100 years of development of the SF Bay region. Grammia, and Arctiinae in general, are not known for high levels of host specificity; they tend to be like little cows and feed on almost anything in their path. So it remains puzzling why this moth wouldn’t have habitat today, even in a city so heavily disturbed. Perhaps this moth specialized in the salt marsh areas surrounding the bay – which have all since been wiped out due to landfill for real-estate (1/3 of the entire bay was lost to fill). Or perhaps this moth remains with us even today but is never collected because it is an evasive day flying species. I always keep my eye out in the park in spring for a small orange blur… li no: Zoo li Chaw thau khoom..
1.1 2.1 3.1 3.2 3.3 4.1 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 6.1 7.1
Ponedjeljak Moljac Chris Grinter, 20. lipnja, 2011 Ja ću zadržati loptu valjanje u ovoj seriji i pokušati napraviti što više redovito. Također ću se usredotočiti na isticanje nove vrste svaki tjedan od golemih zbirki ovdje na California Academy of Sciences. To nam daje dovoljno materijala za… barem nekoliko stotina godina. Grammia edwardsii (Erebidae: Arctiinae) Ovotjedna primjerak medonjica Grammia edwardsii. Do prije nekoliko godina ova obitelj od moljaca smatralo odvojena od Noctuidae – ali nedavna molekularna i morfološka analiza pokazuje da je to u stvari Noctuid. Obitelj Erebidae je izvukao iz unutar Noctuidae i Arctiidae se stavi, pretvarajući ih u podvrstu Arctiinae. OK dosadna taksonomija zabit – sve u svemu, to je lijepa moljac i gotovo ništa ne zna o tome. Ovaj uzorak je prikupio u San Franciscu 1904 – zapravo su prikupljeni gotovo svi primjerci poznati ove vrste u gradu na prijelazu stoljeća. Iako je to moljac izgleda vrlo slično izobilju i raširena Grammia krasi, u blizini analiza očiju, oblik i antene krilo tvrde da je to zapravo zasebna vrsta. Vjerujem posljednji primjerak bio prikupljeno oko 1920-ih godina i to nije vidio od. To je vjerojatno i šteta što to može moljac su izumrle tijekom prošlog 100 godina razvoja SF Bay regiji. Grammia, i Arctiinae u cjelini, nisu poznati po visokim razinama domaćina specifičnosti; oni imaju tendenciju da se kao mala krava i hrane se gotovo sve što je u njihovom putu. Dakle, ostaje zagonetan zašto ovaj moljac ne bi imao stanište danas, čak iu grad tako jako uznemireni. Možda je to moljac specijalizirana za slanim močvarnih područja koje okružuju zaljev – koje su sve, jer je nestala zbog odlagališta za nekretnine (1/3 na cijeli zaljev je izgubila ispuniti). Ili možda ovaj moljac ostaje s nama i danas, ali se nikad ne prikuplja, jer je dvosmislen dan leti vrsta. Ja uvijek držim oči u parku u proljeće za malu naranče zamućenja… Sviđa ti se? Sviđa mi se Učitavanje...