Allpet Roaches Posted August 23, 2007 Share Posted August 23, 2007 Unidentified polyphagid from Taiwan Quote Link to comment Share on other sites More sharing options...
Matt K Posted August 25, 2007 Share Posted August 25, 2007 Unidentified polyphagid from Taiwan This may be the worlds best example of sexual dimorphism in a specie !! Could they be any more different without one growing tentacles and feathers ?? Very cool ! Quote Link to comment Share on other sites More sharing options...
Lucihormetica Posted August 26, 2007 Share Posted August 26, 2007 May your picture will show us an Eupolyphaga sp. For a better determination it will be important, to observe and comparing the specimens under a microscope. Best regards Ingo Quote Link to comment Share on other sites More sharing options...
Randolph#20 Posted September 1, 2007 Share Posted September 1, 2007 Very interesting , cuz personally never heard of this kinda of roaches in any bug books in Taiwan, and we do not have a that much sandy areas on the island Quote Link to comment Share on other sites More sharing options...
Allpet Roaches Posted September 2, 2007 Author Share Posted September 2, 2007 Hi Randolph, Thanks for signing in, nice to see you! That is the same species I asked you about a few years ago. The polyphagid roaches are commonly called 'desert' or 'sand' roaches because many are associated with desert areas though they are normally found in leaf litter accumulations (in arid lands with live oak, mesquite, etc. as opposed to deserts without vegetation) rather than running through barren sand dunes. In the USA we have some desert roach species found in the desert southwest as well as in Florida where the average rainfall is quite high. Quote Link to comment Share on other sites More sharing options...
Randolph#20 Posted September 2, 2007 Share Posted September 2, 2007 Hi Randolph, Thanks for signing in, nice to see you! That is the same species I asked you about a few years ago. The polyphagid roaches are commonly called 'desert' or 'sand' roaches because many are associated with desert areas though they are normally found in leaf litter accumulations (in arid lands with live oak, mesquite, etc. as opposed to deserts without vegetation) rather than running through barren sand dunes. In the USA we have some desert roach species found in the desert southwest as well as in Florida where the average rainfall is quite high. Hi Orin i can assure you tehre is no desert in Taiwan, nor dry/arid areas, since it is a sub tropical island(small too, 36 thousand square kilometers with 2/3 of mountain areas), and being raised in taiwan for 15 years and collecting bugs, plus a lot of reading, i have never even seen polyphagid roaches on books or even in wild i think they might be those chinese medicinal use ones imported to Taiwan, just my two cents Quote Link to comment Share on other sites More sharing options...
Lucihormetica Posted September 2, 2007 Share Posted September 2, 2007 Dear Randolph, did you have a limestone formation?If it so, you have to try to find these species on the baseline ore into small gaves. I have found different polyphagids into these formation in Thailand. best regards ingo Quote Link to comment Share on other sites More sharing options...
Allpet Roaches Posted September 2, 2007 Author Share Posted September 2, 2007 Hi Orin i can assure you tehre is no desert in Taiwan, nor dry/arid areas, since it is a sub tropical island(small too, 36 thousand square kilometers with 2/3 of mountain areas), and being raised in taiwan for 15 years and collecting bugs, plus a lot of reading, i have never even seen polyphagid roaches on books or even in wild i think they might be those chinese medicinal use ones imported to Taiwan, just my two cents You may well be correct that they were imported from China; just because the stock came from Taiwan doesn't mean it's endemic. It's even slightly possible they came from a medicine shop though I think that detail would have been passed along. I was trying to explain that polyphagids don't have to live in desert or arid areas, Florida has a similar climate to Taiwan. They also don't require sand but prefer a loose soil (sandy soils tend to be loose) since they spend their lives underground. You'd only find females or nymphs if you knew where to dig. There are no sand dunes or sandy beaches along the 1,500+ kilometer Taiwanese coastline? Quote Link to comment Share on other sites More sharing options...
Randolph#20 Posted September 2, 2007 Share Posted September 2, 2007 You may well be correct that they were imported from China; just because the stock came from Taiwan doesn't mean it's endemic. It's even slightly possible they came from a medicine shop though I think that detail would have been passed along. I was trying to explain that polyphagids don't have to live in desert or arid areas, Florida has a similar climate to Taiwan. They also don't require sand but prefer a loose soil (sandy soils tend to be loose) since they spend their lives underground. You'd only find females or nymphs if you knew where to dig. There are no sand dunes or sandy beaches along the 1,500+ kilometer Taiwanese coastline? we do have a lotta sandy beach in west coast of Taiwan, but i havn't seen anything like that when i was a bird guide for international black faced spoonbiil society when i was 13..and i do hang out in beach a lot and in the most "cavey" area of Taiwan, is the Kenting national park where ancient reefs rised into caves, and never seen or heard of that from any resources, too and you have to know different from florida, Taiwan is highly , or overly developed, coast line, even plains and lower mountain species had been discovered and named or identified for centuries, cuz the size is just small what I am trying to say is, if it's native species that is not inhabit in some deep mountains, it should be on the book Quote Link to comment Share on other sites More sharing options...
Allpet Roaches Posted September 3, 2007 Author Share Posted September 3, 2007 'Unidentified' means the species most likely has a scientific name but the name is not known. 'Undescribed' is the term for a species without a scientific name. The photograph is labeled unidentified. I have a friend in Taiwan who told me he has had no luck finding cockroach literature with the exception of pest control information and a few species listed in general entomology texts. Do you have a paper, book or books that claim to list all or most known Blattodea species found in Taiwan (even all known genera would be great). If you do have a complete list and you could post it here (or a link to an online resource) that would be really helpful in figuring out what species this is, primarily if there is only one polyphagid species in Taiwan. I understand all the literature is probably in Chinese but the scientific names and family would still be in Latin. I'm sure it would also prove useful to other Taiwanese hobbyists who visit this board. Thanks. Quote Link to comment Share on other sites More sharing options...
Randolph#20 Posted September 3, 2007 Share Posted September 3, 2007 'Unidentified' means the species most likely has a scientific name but the name is not known. 'Undescribed' is the term for a species without a scientific name. The photograph is labeled unidentified. I have a friend in Taiwan who told me he has had no luck finding cockroach literature with the exception of pest control information and a few species listed in general entomology texts. Do you have a paper, book or books that claim to list all or most known Blattodea species found in Taiwan (even all known genera would be great). If you do have a complete list and you could post it here (or a link to an online resource) that would be really helpful in figuring out what species this is, primarily if there is only one polyphagid species in Taiwan. I understand all the literature is probably in Chinese but the scientific names and family would still be in Latin. I'm sure it would also prove useful to other Taiwanese hobbyists who visit this board. Thanks. plz tell your friend to go to bookstore and actually take a look with just insect books, instead of staying at home typing infront of computers i douno much about papers of roaches, but just in general and base on my field experiences major insect hand guides do have listed generas, just go to any eslitebooks stores in any cities of Taiwan, you will find bunch ex http://gaga.jes.mlc.edu.tw/new23/cp03_71.htm four subfamilies 33 genus and 75 species known Blattidae, Phyllodromiidae, Blaberidae, Polyphagidae Superfamily Blattoidea Family Blattidae Subfamily Blattinae Genus Cutilia Genus Dorylaea Genus Hebardina Genus Homalosilpha Genus Neostylopyga Genus Platyzosteria Genus Periplaneta Superfamily Blaberoidea Family Polyphagidae Subfamily Holocompsinae Genus Holocompsa Subfamily Polyphaginae Genus Eucorydia Family Blattellidae Subfamily Anapletinae Genus Anaplecta Genus Anaplectella Subfamily Plectopterinae Genus Balta Genus Chorisoneura Genus Margattea Genus Supella Subfamily Blattellinae Genus Asiablatta Genus Blattella Genus Episymploce Genus Hemithyrsocora Genus Lobopterella Genus Sigmella Genus Symploce Family Blaberidae Subfamily Panesthiinae Genus Panesthia Genus Salganea Subfamily Pycnoscelinae Genus Pycnoscelis Subfamily Oxyhaloinae Genus Nauphoeta Subfamily Epilamprinae Genus Opisthoplatia Genus Rhabdoblatta Subfamily Perisphaerinae Genus Paranauphoeta Genus Trichoblatta Subfamily Diplopterinae Genus Diploptera but the only known one from the subfamily, is the only genus,is a flying colourful one - Eucorydia aenea dasytoides some id keys http://www.swannet.com.tw/taxonomy/KMDocs/35124633.doc i m not denying the possibility that it might be a new sp, or introduced sp, but just saying, the chance is too low Quote Link to comment Share on other sites More sharing options...
Allpet Roaches Posted September 3, 2007 Author Share Posted September 3, 2007 Family Polyphagidae Genus Holocompsa Genus Eucorydia Eucorydia purpuralis is also listed from Taiwan but I imagine the females also have wings (I'm guessing the Holocompsa are far too small). Would you happen to have a photo of any Chinese or Taiwanese polyphagids, especially the Eucorydia? I found this photo of Eupolyphaga sinensis online but only the female and it looks nearly black (the shrunken shape is the result of how it was preserved but its hard to say what color it was before it died). Wingless polyphagid females do usually look pretty similar. The scale shows it's about the same size: E.sinensis Quote Link to comment Share on other sites More sharing options...
Randolph#20 Posted September 3, 2007 Share Posted September 3, 2007 Eucorydia purpuralis is also listed from Taiwan but I imagine the females also have wings (I'm guessing the Holocompsa are far too small). Would you happen to have a photo of any Chinese or Taiwanese polyphagids, especially the Eucorydia? I found this photo of Eupolyphaga sinensis online but only the female and it looks nearly black (the shrunken shape is the result of how it was preserved but its hard to say what color it was before it died). Wingless polyphagid females do usually look pretty similar. The scale shows it's about the same size: E.sinensis Eucorydia aenea dasytoides http://insectforum.no-ip.org/gods/cgi-bin/...&topic=8716 Quote Link to comment Share on other sites More sharing options...
Allpet Roaches Posted September 4, 2007 Author Share Posted September 4, 2007 Eucorydia aenea dasytoides http://insectforum.no-ip.org/gods/cgi-bin/...&topic=8716 Wow! Those are amazing, what is the adult size in millimeters? Are the Eupolyphaga available live from the medicine shops or only dead? Any idea where to find a photo of a living male and female of that species? Quote Link to comment Share on other sites More sharing options...
Randolph#20 Posted September 4, 2007 Share Posted September 4, 2007 Wow! Those are amazing, what is the adult size in millimeters? Are the Eupolyphaga available live from the medicine shops or only dead? Any idea where to find a photo of a living male and female of that species? they are around 34-36mm, females are SUPER rare by unknown reasons....males fly pretty high they are dried goods and i guess u asked the wrong person, since herbal medicine in Taiwan is not as big as in China...so i really have no idea with non-native species.... this thread reminds me the so called HK giant centipede are not actually from hong kong, but more like transfer from china and export from HK, the native species in hk are under 15 cm, wherea the "HK giant" are a lot bigger than that and personally, as a Taiwanese, i feel a lill bit happy that taiwan can finally take this tiny bit advantage from China, since they have taken so much away from us, lol Quote Link to comment Share on other sites More sharing options...
Yamai Posted November 9, 2008 Share Posted November 9, 2008 This is actually a Mainland China species, and very closeed to Eupolyphaga sinensis (Walker, 1868), a very common culture species for medicine. This colony may be introduced from Taiwan to America/Europe, but never be the Taiwanese species~ Quote Link to comment Share on other sites More sharing options...
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