(365DEpal) Deuterosminthurus pallipes (Bourlet, 1843)

*repandus (Ågren, 1903)

Deuterosminthurus pallipes is common and widespread. It has been recorded mostly under the name Deuterosminthurus repandus which is a junior synonym. Between Spring and Autumn in Steve Hopkin's garden in Reading, all combinations of males and females of the yellow and purple varieties of Deuterosminthurus pallipes could be seen 'courting' on the plants (Fig. 1).  All setae on the outer side of the tibiotarsus of the third leg (leg3) are about the same length (Fig. 2). In males, long specialised backward-pointing setae are not present at the posterior end of the sixth abdominal segment (Fig. 3). In females, the setae surrounding the anus are all of similar thickness. The female Sub Anal Appendages (SAA) are not expanded at the tip (Fig. 4).

 

(Note that on p. 41 and 139 of Steve Hopkin's 1997 book on Collembola he referred to dancing behaviour in Bourletiella hortensis, but in fact the pictures were of this species.)

 

Fig. 1: A pastiche of images from Steve Hopkin's garden of males and females of the yellow and purple varieties of Deuterosminthurus pallipes, courting on plant leaves.

Fig. 2: Setae on the tibiotarsus of the third leg of Deuterosminthurus pallipes collected from St. Albans in July 1926 by C.H. Jackson.

Fig. 3: Sixth abdominal segment (abd6) of the same male specimen of Deuterosminthurus pallipes shown in Fig. 9. Long specialised backward-pointing setae are not present.

Fig. 4: Female Subanal appendage (SAA) of Deuterosminthurus pallipes collected from West Wickham, Kent in June 1976 by Peter Lawrence.

 
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