Thomas Karrer

Entomologist

My activity

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Sericostomatidae" to the collection "Insects in Japan".

    about 1 month ago

  • Profile picture of Thomas Karrer who took this action.

    Thomas Karrer commented on "Sympetrum":

    I am wondering according to what criteria Linnaeus named the genus Sympetrum. It goes back to the 10th edition of the Systema Naturae. Is there a clue to be found in the Greek root and prefix, like "to be on rocks"? Or would that be a far off the track reasoning? Concerning this inquiry the British Dragonfly Society was very helpful (thanks to Claire Install and Dave ........) and gave me some interessting background information. Actually its all getting rather complicated. Here the quotation of one part of the mail: Odonata - http://www.listbot.com/cgi-bin/subscriber On 3 Mar 99, at 14:34, Rudolf Vos wrote: > Another fact I remember from my lessons. The part of the word that should be > emphasised is the third from the right (how should I say that in proper > English?). So, it will be > Les'tes > Cordilu'gaster > Somato'chlora (although almost everyone says Somatochlo'ra in The Netherlands) > Sym'petrum (although almost everyone says Sympe'trum in The Netherlands) > etc. Ah, but Donald Borror has rules to deal with this! The emphasis is on the antepenultimate syllable _unless_: a) The word contains only two syllables b) The penultimate syllable contains a diphthong (e.g. Nymph-ae'-a) c) The vowel in the penult is followed by 'x' or 'z' (e.g. Co-rix'-a) d) The vowel in the penult is long, which may depend on the derivation of the word and the vowel pronunciation in the language of derivation; whence follows a long list of situations in which the vowel should be long. e) The vowel in the penult is short and followed by two consonants, except a mute followed by 'l' or 'r' (e.g. Cor-e-op'-sis, but Ge-om'-et-ra) Somatochlora would be pronounced with the emphasis on the penult, because the 'o' in 'chlora' is considered (by Borror, at least) to be long (rule d). Corduligaster would be pronounced with the emphasis on the penult, because of the 'st' combination (rule e). Sympetrum is a tougher problem. Is the 'e' long or short? That depends on the derivation of the word (rule d). Some say it is from the Greek "sym - petrum," meaning "same stone" (I think this is from Needham, though I can't find the reference at the moment). Jaeger, in _A Source-book of Biological Names and Terms_, says it is derived from the Greek "symp- etrum," meaning "squeezed-together [constricted? flattened?] abdomen." Jaeger indicates that the 'e' in 'etron' should be long; hence, "symp-e'-trum" (long 'e') would be correct (rule d). However, in _An Introduction to the Study of Insects_, Borror gives the pronunciation "sym-pet'-rum (short 'e', but accent on the penult), presumably based on Needham's derivation ("same stone"), though this seems to violate his rule e above, which suggests it should be pronounced "sym'-pe-trum" As to Libellula, he gives the pronunciation "li-bel'-lu-la" because a 'u' in the penult is long _except_ when followed by an 'l'. Hence, the 'u' in Libellula is short ("li-bel'-yuh-la" not "li-bel-you'-la"). However, Ischnura is "isch-nyou'- ra." Here's another hot pronunciation question for discussion. Borror indicates in his pronunciation guides that words derived from Latin ending in -ata, - atus, or -atum have a long 'a'; hence, the accent would be on the penult (example: "ma-cu-la'-ta" with a long 'a' in the penult). However, the penultimate 'a' is short in Greek plurals (e.g. "e-chi-no-der'-ma-ta"). So, if Odonata is from the Greek for "tooth," how come it isn't pronounced "o-don'- a-ta"? Terry Morse tmorse@teleport.com * A foolish consistency is the hobgoblin of little minds. -- Emerson End of the quotation. Its quite amazing since I had a look into the 10th edition of "Systema Naturae" and could not come up with one clue on the 3 pages covering "neuroptera".

    about 1 month ago • edited: 4 days ago

  • Profile picture of Thomas Karrer who took this action.

    Thomas Karrer commented on "Sympetrum":

    This comment was deleted.

    about 1 month ago • deleted: about 1 month ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Sympetrum depressiusculum Selys 1841" to the collection "Insects in Japan".

    about 1 month ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Pentatoma japonica" to the collection "Insects in Japan".

    about 1 month ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Orthetrum albistylum speciosum Uhler, 1858" to the collection "Insects in Japan".

    about 1 month ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Orthetrum albistylum Selys 1848" to the collection "Insects in Japan".

    about 1 month ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Gryllotalpidae" to the collection "Insects in Japan".

    about 1 month ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Gryllotalpa orientalis Burmeister, H., 1838" to the collection "Insects in Japan".

    about 1 month ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Baliga micans (McLachlan, 1875)" to the collection "Insects in Japan".

    almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.

    Thomas Karrer commented on "Graphium sarpedon nipponus":

    @Katja Schulz: Katja Schulz. Maybe I was able to mend the Papilio xuthus "stuff". Kueda from iNaturalist pointed out that I should not add any info beside the name to the name-section in the observation slot. So I removed that. Still sorting things out and ironing out glitches. Thanks for all the help. ABOUT 11 HOURS AGO

    almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.

    Thomas Karrer commented on "Graphium sarpedon nipponus":

    This comment was deleted.

    almost 2 years ago • deleted: almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.

    Thomas Karrer commented on Thomas Karrer's newsfeed:

    This comment was deleted.

    almost 2 years ago • deleted: about 1 month ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Theretra oldenlandiae Fabricius 1775" to the collection "Insects in Japan".

    almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.

    Thomas Karrer commented on Thomas Karrer's newsfeed:

    Hi Katja,thanks for the trouble. As for Papilio xuthus, I uploaded it the usual way. What can I do to add the IDs? Would that be the "add ID" tag? Well, the EOL Papilio xuthus taxon is well stacked with info so nobody is in a hurry.

    almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Papilio xuthus Linnaeus 1767" to the collection "Insects in Japan".

    almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Graphium sarpedon nipponus" to the collection "Insects in Japan".

    almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Ornebius kanetataki (Matsumura, S., 1904)" to the collection "Insects in Japan".

    almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Ascalohybris subjacens (Walker, 1853)" to the collection "Insects in Japan".

    almost 2 years ago

  • Profile picture of Thomas Karrer who took this action.
    Thomas Karrer added "Protohermes grandis (Thunberg, 1781)" to the collection "Insects in Japan".

    almost 2 years ago