124 (üll. A. e. OUDEilANS) 



or on a female or on a nyaiph is not mentioned. I should say 

 partly on a male (e. g. area genitalis pyriforiuis), partly on a female 

 (e. g. mai'go posterior pilis densis instructus). At all events the 

 description is too vague, and a figure is wanting. Yet, I think 

 the species is synonym to Celeripes vesper tllionis (L.). 



If we compare the descriptions and figures of Celeripes vesper- 

 tUlonis (L.) of old writers, we ohserve that they differ in some 

 details, and yet me must be prudent to assert that they saw different 

 species. 



If you compare my figures with Koch's and Kolenati's figures 

 and descriptions , you will observe that I am right in considering 

 Pteroptus acuminatus and ahomlnablUs of Koch , (not ahdominalis as 

 Berlese writes !) and Dlplostaspis Nattererii of Kolenati as being 

 synonyms to Celeripes vespertilionls (L.) tritonympha. 



Nympha {tritonympha ?) $ , certe generans ! On its doj sal face 

 (fig. 32) we observe a dorsal shield marked with one median round 

 spot and 28 smaller ones in four longitudinal rows, further sym- 

 metrically placed pores. What these round spots are I am unable 

 to decide Kolenati calls them Erosionsgruben , Berlese foveolae. 

 They disappear when the animal is treated with caustic kali. The 

 shield is nearly rhombeous. Ten bristles surround the two fore- 

 margins of the shield ; six smaller ones stand near the hind-corner 

 of the shield, and two between the stigmata and the shield. The 

 stigmata are dorsal, the peiitremata run forward along the sides of 

 the shield and bent themselves towards the ventral surface exactly 

 between the 2d and 3d pairs of legs. — The palpi are slender, 

 they reach the middle of the third joint of the first pair of legs. 

 The legs are thick, as long as the body; the first three joints of 

 the legs bear long, stifl", somewhat curved bristless. The 4th and 

 5th joints smaller ones. These bristles stand exactly in two longitudinal 

 rows on the dorsal surface of each leg. In my figure this is not 

 immediately perceptible , for the legs are bent sideways , and so the 

 dorsal face of the first two pairs of legs is turned forward, whilst 

 the same face of the last two pairs of legs is directed hindward. 



Veidral face (fig. 33). The ventral shield sliows a scaly marking , 



