Sarcoptiformes 



327 



Genus: 



Sciproglyphus Berlese, 1890 



Type. Sciproglyphus neglectiis Berlese, 1890 



Discussion: Saproglyphus neglectus Berlese was collected on rotting 

 shelf fungus, Poly poms hispidus, in Italy; 5. cocciphagus Womersley, 

 1941 was found in gall on tree-lucerne in New South Wales, Australia. 



References: 



Berlese, A. 1890. Acari, Myriopoda et Scorpiones Crypt. Fasc. LXXXIX, 



No. 11; Fasc. LVII, No. 6. 

 Womersley, H. 1941. Studies in Australian acarina (2) Tyroglyphidae 



(s.l.) Rec. South Austral. Mus. VI(4) : 451-488. 



Acaridae Ewing and Nesbitt, 1942 



(= Tyroglyphidae Donnadieu, 1868) 

 Figures 256-262 



Diagnosis: ^ The body of these mites is dis- 

 tinctly divided into a proterosoma and hystero- 

 soma by a transverse groove. The body is stout, 

 white, or fawn and the integument is usually 

 smooth aAd shiny, rarely rough. The chelicerae 

 are chelate. Five pairs of setae are found on the 

 propodosoma: (i) rostral setae; (ii) Grand- 

 jean's organ in Acarinae = nuchal setae in 

 Rhizoglyphinae; (iii) cervical bristles; (iv) 

 outer propodosomatic setae; (v) inner propo- 

 dosomatic setae (a reduction in the number of 

 these setae is to be found in the genera Thyreo- 

 phagus and Histiogaster) . Usually the anterior 

 part of the propodosoma is covered by a shield. 

 In all genera a pseudostigmatic org^ is present. 

 The male and female genital opening is between 

 coxae III and iv. Two distinct copulatory suckers are located on either 

 side of the male anus. Epimera i is united to the sternum but all others 

 are free. All coxae except iv bear a spine on the ventral surface. The 

 tarsi may be longer than the tibia plus the genu. Tarsus i bears: (i) 

 macrosense seta with a microsense seta before it at its base; (ii) sub- 



1 After Nesbitt 1945. 



Figure 256 Rhizogly- 

 phus echinopus (Fu- 

 mouze and Robin). 

 Ventral view of larva. 

 Note Claparede's 

 organ or iirstigma 

 on coxa i. 



