How can you tell the sex of a Mexican redknee tarantula? This is often one of the biggest questions that goes through a keepers mind when acquiring a new tarantula.
Unauthorized duplication, be it electronic, mechanical, photocopying, recording or otherwise will be prosecuted to the fullest extent of the law.
Although there are more than 900 species of tarantula, they all share certain physical characteristics that help people distinguish males from females. If you locate an uterus externus and spermatheca your tarantula is a female. Although there are more than 900 species of tarantula, they all share certain physical characteristics that help people distinguish males from females. Spiders are venomous, so the hooks prevent the ladies from sinking their fangs into them and killing them in the middle of copulation.Speaking of dangerous odds, males tend to have very short life spans. Examine the areas of invertebrates like grasshoppers and beetles, but also lizards and rodents.
Or the lone specimen of a rare species that you need to pair up and there is only one large juvenile in the dealer's display case and he swears that it is the exact sex you need? While the SASI conference covers ALL Arthropods, most of the over 100 attendees were, at the very least, passingly interested enough in tarantulas to make the seminar a worthwhile event on its own. But what about the lone tarantula in a "Critter Cottage" in the corner of a pet shop on Main Street? Rick had been coaxed from his home in the idyllic Canadian Northwest to come and give a two day "mini Seminar" on theraphosid spiders.
Our colleagues in the British Tarantula Society, especially John and Kathleen Hancock, brought this valuable technique for accurately sexing tarantulas to light in their book entitled, Thus the quest remained for a reliable method based on scientific evidence that allows one (sending out DNA samples was not reasonable) to immediately determine the gender of a live tarantula. The author was in attendance at this seminar with many hundreds of live tarantulas of numerous species and we didn�t hesitate to lay hands on many unsuspecting victims for our "hands on" approach to determining their gender.On larger spiders, the presence (or absence) of the With smaller tarantulas, down to a size that can be safely picked up and turned over (i.e., 1.5-2" legspan), the author prefers to used a pocket microscope of about 30x.
Males are often requested for breeding projects or for those who want a pet with a lifespan (and commitment) of a only few years.
Pouring over endless volumes of foreign texts, in Germany, French and Portuguese, had led me to the conclusion that they might have stumbled onto some technique. This may have led, in the author's opinion, to a condition of �seeing only what we are looking for� and �if we are looking for females, let�s try to find what females have that males don't�.This Mexican Fireleg appears to be a female; no hooks or palpal emboli.
How can you tell the sex of a Mexican redknee tarantula? This is often one of the biggest questions that goes through a keepers mind when acquiring a new tarantula.
Unauthorized duplication, be it electronic, mechanical, photocopying, recording or otherwise will be prosecuted to the fullest extent of the law.
Although there are more than 900 species of tarantula, they all share certain physical characteristics that help people distinguish males from females. If you locate an uterus externus and spermatheca your tarantula is a female. Although there are more than 900 species of tarantula, they all share certain physical characteristics that help people distinguish males from females. Spiders are venomous, so the hooks prevent the ladies from sinking their fangs into them and killing them in the middle of copulation.Speaking of dangerous odds, males tend to have very short life spans. Examine the areas of invertebrates like grasshoppers and beetles, but also lizards and rodents.
Or the lone specimen of a rare species that you need to pair up and there is only one large juvenile in the dealer's display case and he swears that it is the exact sex you need? While the SASI conference covers ALL Arthropods, most of the over 100 attendees were, at the very least, passingly interested enough in tarantulas to make the seminar a worthwhile event on its own. But what about the lone tarantula in a "Critter Cottage" in the corner of a pet shop on Main Street? Rick had been coaxed from his home in the idyllic Canadian Northwest to come and give a two day "mini Seminar" on theraphosid spiders.
Our colleagues in the British Tarantula Society, especially John and Kathleen Hancock, brought this valuable technique for accurately sexing tarantulas to light in their book entitled, Thus the quest remained for a reliable method based on scientific evidence that allows one (sending out DNA samples was not reasonable) to immediately determine the gender of a live tarantula. The author was in attendance at this seminar with many hundreds of live tarantulas of numerous species and we didn�t hesitate to lay hands on many unsuspecting victims for our "hands on" approach to determining their gender.On larger spiders, the presence (or absence) of the With smaller tarantulas, down to a size that can be safely picked up and turned over (i.e., 1.5-2" legspan), the author prefers to used a pocket microscope of about 30x.
Males are often requested for breeding projects or for those who want a pet with a lifespan (and commitment) of a only few years.
Pouring over endless volumes of foreign texts, in Germany, French and Portuguese, had led me to the conclusion that they might have stumbled onto some technique. This may have led, in the author's opinion, to a condition of �seeing only what we are looking for� and �if we are looking for females, let�s try to find what females have that males don't�.This Mexican Fireleg appears to be a female; no hooks or palpal emboli.
How can you tell the sex of a Mexican redknee tarantula? This is often one of the biggest questions that goes through a keepers mind when acquiring a new tarantula.
Unauthorized duplication, be it electronic, mechanical, photocopying, recording or otherwise will be prosecuted to the fullest extent of the law.
Although there are more than 900 species of tarantula, they all share certain physical characteristics that help people distinguish males from females. If you locate an uterus externus and spermatheca your tarantula is a female. Although there are more than 900 species of tarantula, they all share certain physical characteristics that help people distinguish males from females. Spiders are venomous, so the hooks prevent the ladies from sinking their fangs into them and killing them in the middle of copulation.Speaking of dangerous odds, males tend to have very short life spans. Examine the areas of invertebrates like grasshoppers and beetles, but also lizards and rodents.
Or the lone specimen of a rare species that you need to pair up and there is only one large juvenile in the dealer's display case and he swears that it is the exact sex you need? While the SASI conference covers ALL Arthropods, most of the over 100 attendees were, at the very least, passingly interested enough in tarantulas to make the seminar a worthwhile event on its own. But what about the lone tarantula in a "Critter Cottage" in the corner of a pet shop on Main Street? Rick had been coaxed from his home in the idyllic Canadian Northwest to come and give a two day "mini Seminar" on theraphosid spiders.
Our colleagues in the British Tarantula Society, especially John and Kathleen Hancock, brought this valuable technique for accurately sexing tarantulas to light in their book entitled, Thus the quest remained for a reliable method based on scientific evidence that allows one (sending out DNA samples was not reasonable) to immediately determine the gender of a live tarantula. The author was in attendance at this seminar with many hundreds of live tarantulas of numerous species and we didn�t hesitate to lay hands on many unsuspecting victims for our "hands on" approach to determining their gender.On larger spiders, the presence (or absence) of the With smaller tarantulas, down to a size that can be safely picked up and turned over (i.e., 1.5-2" legspan), the author prefers to used a pocket microscope of about 30x.
Males are often requested for breeding projects or for those who want a pet with a lifespan (and commitment) of a only few years.
Pouring over endless volumes of foreign texts, in Germany, French and Portuguese, had led me to the conclusion that they might have stumbled onto some technique. This may have led, in the author's opinion, to a condition of �seeing only what we are looking for� and �if we are looking for females, let�s try to find what females have that males don't�.This Mexican Fireleg appears to be a female; no hooks or palpal emboli.
A female tarantula sheds the spermathecae lining along with the rest of her exoskeleton and an experienced examiner can look for the presence of spermathecae, which is the sperm storage receptacle of the female.
After it molts, look on the inside of the exuvium (shed skin), between the top set of book lungs. There is a handy one available, WITH a built-in light, from Radio Shack� for about $10.00 US. The first was the presentation of his illustrated Keys to help hobbyists and invertebrate specialists identify theraphosid subfamilies (and some genera) and the second part was to demonstrate the easy method of sexing living tarantulas.For those not familiar with Rick West or his work, Rick is one of those rare individuals whose thirst for personal knowledge has caused him to acquire vast numbers of sometimes obscure papers on various things arachnological. Therefore, they tend to have red or orange spots across their backs and abdomens.
Don�t expect the pet store clerk or the tarantula dealer (myself included) to pick up and sex every tarantula for you. Over my 30 years of keeping tarantulas alive in vivaria, I must admit to having been fooled many times both by the spiders themselves and by my well-meaning colleagues or so called "experts", who claimed to have discovered some foolproof method of accurately determining the gender of individual tarantulas.Well, if those techniques were indeed "foolproof", then I must be nobody's fool, since they have proven to be about as (but no Fortunately, for those of us who breed tarantulas regularly, the technique of sexing theraphosid spiders from the microscopic examination of the exuviae (shed skins), is a True science.
How can you tell the sex of a Mexican redknee tarantula? This is often one of the biggest questions that goes through a keepers mind when acquiring a new tarantula.
Unauthorized duplication, be it electronic, mechanical, photocopying, recording or otherwise will be prosecuted to the fullest extent of the law.
Although there are more than 900 species of tarantula, they all share certain physical characteristics that help people distinguish males from females. If you locate an uterus externus and spermatheca your tarantula is a female. Although there are more than 900 species of tarantula, they all share certain physical characteristics that help people distinguish males from females. Spiders are venomous, so the hooks prevent the ladies from sinking their fangs into them and killing them in the middle of copulation.Speaking of dangerous odds, males tend to have very short life spans. Examine the areas of invertebrates like grasshoppers and beetles, but also lizards and rodents.
Or the lone specimen of a rare species that you need to pair up and there is only one large juvenile in the dealer's display case and he swears that it is the exact sex you need? While the SASI conference covers ALL Arthropods, most of the over 100 attendees were, at the very least, passingly interested enough in tarantulas to make the seminar a worthwhile event on its own. But what about the lone tarantula in a "Critter Cottage" in the corner of a pet shop on Main Street? Rick had been coaxed from his home in the idyllic Canadian Northwest to come and give a two day "mini Seminar" on theraphosid spiders.
Our colleagues in the British Tarantula Society, especially John and Kathleen Hancock, brought this valuable technique for accurately sexing tarantulas to light in their book entitled, Thus the quest remained for a reliable method based on scientific evidence that allows one (sending out DNA samples was not reasonable) to immediately determine the gender of a live tarantula. The author was in attendance at this seminar with many hundreds of live tarantulas of numerous species and we didn�t hesitate to lay hands on many unsuspecting victims for our "hands on" approach to determining their gender.On larger spiders, the presence (or absence) of the With smaller tarantulas, down to a size that can be safely picked up and turned over (i.e., 1.5-2" legspan), the author prefers to used a pocket microscope of about 30x.
Males are often requested for breeding projects or for those who want a pet with a lifespan (and commitment) of a only few years.
Pouring over endless volumes of foreign texts, in Germany, French and Portuguese, had led me to the conclusion that they might have stumbled onto some technique. This may have led, in the author's opinion, to a condition of �seeing only what we are looking for� and �if we are looking for females, let�s try to find what females have that males don't�.This Mexican Fireleg appears to be a female; no hooks or palpal emboli.
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