The best way to determine the sex of a praying mantis is to get a clear view of its abdomen. Body size, wings, and antennae can provide additional clues. Here’s how to compare these characteristics without disturbing your insect.
Whether it’s a ghost mantis or an orchid mantis: the species and stage of development are always part of the identification process. With very small nymphs, it’s often better to wait and see rather than make a seemingly certain identification based on a blurry photo.
Determining the Sex of a Praying Mantis: Comparing Abdominal Segments
In many mantises, eight visible abdominal segments can be counted on the underside of the abdomen in males and six in females. The underside is important: the segmentation on the back is not the same.
At the end of the body, the segments may be hidden or difficult to distinguish. Therefore, the shape of the last visible abdominal segment is another important clue. Females typically have a larger terminal segment there; in males, the end appears more finely subdivided. Whenever possible, compare animals of the same species and at a similar stage of development.
Identifying a Praying Mantis: A Clear View
- Place the mantis on a transparent wall or a suitable branch.
- Take a photo of the entire underside of the abdomen, making it as sharp as possible and avoiding any angled perspectives.
- Zoom in on the shot instead of holding the animal still or turning it around.
- Record the species and the known larval stage.
- If the last plates are not clearly visible, repeat the observation later.
Do not hold the animal by its abdomen when doing so. During and immediately after molting, the mantis should be left undisturbed. To determine the sex of a praying mantis, a smartphone capable of taking clear photos is often sufficient; no additional equipment is necessary.
Juveniles: Why Early Identification Can Be Difficult
As they grow larger, their characteristics become more easily recognizable. Experienced keepers can identify some animals at an early stage, but a specific stage such as L3 is not a universal safety threshold.
Nor does a difference in growth rate indicate gender. Males and females can develop differently depending on the species. A blanket statement such as “Males molt two to three times less often” does not apply to all mantises.
Sex Determination in Adult Mantises
In many species, females are sturdier and males are slimmer. Antennae and wing length may vary. These characteristics are particularly helpful when directly comparing individuals of the same species. Not every female has short wings, and not every male can be identified solely by its flight behavior.
In winged species, the fully developed wings appear after the final molt. However, this does not mean that every newly adult animal is already ready to mate.
Correctly Classifying Ghost Mantises and Orchid Mantises
In the case of the ghost mantis, Phyllocrania paradoxa, body shape and antennae can provide additional clues. Use the comparison image along with the view from below. Individual distinctive physical characteristics should not replace a clear photograph of the underside.
In the case of the orchid mantis, Hymenopus coronatus, the distinct difference in size is noticeable in the adult stage. Coloration and leg flaps can also be helpful. However, the color of a neck band alone is not a reliable indicator for every age or every photograph.
If the number of segments you count does not match the expected count, first check the perspective and any hidden end plates. Do not use a different number from a single photo as a new rule for the entire species.
Sex determination does not yet mean approval for breeding
Do not pair two animals based solely on a hunch. For a planned mating, the species, sex, maturity, and condition must be compatible. Also, make sure to have enough space and appropriate care available for any potential offspring.
Do not try to compensate for differences in maturity by using extreme temperatures. Keep both animals under conditions appropriate for their species. The animals’ well-being takes precedence over a scheduled mating date.
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Sexual Characteristics in the Video
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