Fasc. L. N. 6. 



Pterolichus cultrifer Rob. et Megn. 



Rcbin et Megnin, Sarccpt, plum.. p. 406, t. XXII, 

 fig. 8. 



C a n e s t r i n i. Nucve sp del Gen. Dermaleichus, p. 53, 

 {D. cypseli); id. Acari parassiti, p. 35. 



Trcuessart et iMegnin, Sarccpt. plum. p. 57., 

 G. Canestrini. Acarcfauna it. p. 267. 



P. testaceus; mas abdomine postice hifido, tobulis 

 cuttriformibus intersese valde appressis, externe setis 

 tnbus quarum media minima auctis. Ad 400 y.. iong. 



Habitat perfrequens in Cypseti apodi atis. 



Obs. Epimera antica litteram Y sistentia. Ad hu- 

 mera setae dua: exiles quarum altera mincr. 



Mas. (1-2) abdcmen pcsterius (5) in ccnum ccn- 

 strictum, et in lcbulcs ducs incisura mincri divisum. 

 Lcbi cultrifcrmes, apice subhyalini, setis externe tribus, 

 quarum duac lcngae, ccrpcris latitudinem superantes; me- 

 dia minima subulata. Disculi genitales rctundi, inter sese 

 diametri sui circiter triplc discrcti. Penis mincr inter 

 quarti paris pedes ccxas. 



Fcemina (3, 4) pcstice rctundata, scutc abdcminali 

 pcstice rugis aliquct transversis signatc. 



Expt. tab. 2 mas prcnus, 3 foemina supina 4, f(X'- 

 mina prcna. 



Camera} lucidLx: cpe delineatus ct diam. 140 amplif. 



