298 PROCEEDINGS OF THE NATIONAL MUSEUM votaia 



The foretarsus (figs. 77-78) is characterized by 1 1 being long and 

 slender, not clavate, and placed proximally on the tarsus; d:p = 

 85:45(=2); t 2 is longer and more slender than t 1; t 3 short, lancet- 

 like. Exteriorly the long and broadly spindle-shaped a is noticeable; 

 interiorly the very long a' (erroneously, b' on fig. 88) is also noticeable; 

 b' is missing; e is placed in the middle between d and f; f and g are 

 near each other. Also peculiar is the very long seta 5 4. The empo- 

 dium is a little more than half the claw; e:u = 35:G5. 



The chaetotaxy schematically is as follows (the pleurals as usual are 

 included in the tergals; the dorsal chaetotaxy of head and thorax are 

 shown in fig. 79, of the holot3^pe; figs. 80-81 were made from speci- 

 men 2) : 



Abd. I II-III IV-VI VII VIII IX X XI XII 



12 8 6 9 



There is a small variability among the five specimens. In the 

 anterior row of t VI, one specimen has only nine setae, one even eight. 

 In t VII, two specimens have nine setae. Two specimens have only 

 two setae in the posterior row of s I. 



Unfortunately in all specimens the outermost segments (IX-XII) 

 were pulled so closely together, that it was impossible to make clear 

 drawings of them. 



The comb of abd. VIII (fig. 82) consists of 10 rather long and 

 irregular teeth. 



The filamento di sostegno (fig. 83) is very short. 



The species is without a labrum and has short, blunt, three-seg- 

 mented maxillary palpi. It belongs without doubt to Berlese's genus 

 Acerentulus. 



Acerentulus oculatus Ewing 



Figures 84-85 

 Acerentulus oculatus Ewing, 1921b, p. 198;1940, p. 545. 



Only a few specimens arc present. We have examined the holotype, 

 a female labeled, Takoma Park, Maryland, from decaying leaves, 

 March 6, 1921, H. E. Ewing collector; and another specimen labeled, 

 male, taken in copula in breeding cell, March 4, 1922. 



It appears that in nearly all characters the specimens are identical 

 with the specimens of Acerentulus barberi. In the foretarsus the char- 

 acteristic spindle-shaped a, the long and slender 1 1, the extraordinarily 



