Stylopidae

Stylops

Stylops childreni

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  Male

Stylops cornii

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  Andrena nivalis stylopised by Stylops cornii female with emerging larvae
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  Andrena nivalis stylopised by Stylops cornii female with emerging larvae
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  Stylops cornii larvae after hatching

Stylops crawfordi

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  Male

Stylops dalii

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  Male
• 
  Female
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  details

Stylops melittae

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  Andrena vaga stylopised by female
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  Andrena vaga stylopised by female
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  Andrena vaga stylopised by female
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  Male
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  Male
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  Male
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  male pupa
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  mating on Andrena vaga
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  mating on Andrena vaga
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  mating on Andrena vaga
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  mating on Andrena vaga

Stylops muelleri

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  Slightly semilateral sagittal section of the cephalothorax and the anterior part of the abdomen of a virgin female of Stylops muelleri, anterior is toward the left and ventral (physiological dorsal) is toward the top.
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  External male genital structures of Stylops muelleri, lateral view
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  In copula fixed Stylops muelleri. (A) Female cephalothorax with penis broken off in the invagination. (B) Detail of the penetration. bro, birth opening; cth, cephalothorax of female; in, cephalothoracic invagination; pn, penis. SEM micrographs.
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  Mating of Stylops muelleri (film stills). (A) Abdomen of Andrena vaga, parasitized by a female. (B) Mounting the host. (C) Unfolding the penis. (D) Penetration. (E–H) Anchoring. (I–L) Separation.
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  Volume render of the copulation of Stylops muelleri. (A) Overview, only the abdomen and part of the metathorax of the male is shown. (B) Detail, medio sagittal section of female cephalothorax with the penis inserted in the invagination and penetrating the cuticle of the female. ac, acumen; bc, brood canal; cth, cephalothorax of female; h, host; in, cephalothoracic invagination; m, male; pn, penis.
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  A) Two males on a parasitized Andrena vaga (Osnabrück, 10.ii.2008).
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  (B) Five males on a parasitized host (Osnabrück, 23.ii.2008).

Stylops nitidae

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  Andrena nitida stylopised by female

Stylops sp.

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  Stylops sp. a. male with pair of twisted wings (w). b, female (removed from host). c., shows the female, in outline, within the body of a bee; d, e, male and female larvae after hatching