360 



Acarology 



References: 



Cooreman, J. 1941. Etudes Biospeologiques. XXVIII (1). Note sur 



Myianoetiis dicidematiis Willmann, 1937 (Acariens, Sarcoptiformes) 



Pseudoparasite des Helomyzidae (Dipteres) de Transylvanie. Bull. 



Musee Royal d'Hist. Nat. Brussels 17(42) : 1-16. 

 . 1947. Le stade adulte de Myianoetus muscarum (Linne). Bull, et 



Ann. Soc. Ent. de Belg. 73:141-149. 

 Hughes, R. D. 1950. The genetics laboratory mite Histiostoina Uihora- 



tor'nim, n. sp. (Anoetidae). J. Wash. Acad. Sci. 40(6) : 177-182. 

 Michael, A. D. 1901. British Tyroglyphidae 1. 

 Vitzthum, H. 1931. Terrestrische Acarinen der Deutschen Limnologischen 



Sunda-Expedition. Suppl. Bd. IX 'Tropische Binnengewasser. Arch. 



f. Hydrobiol. Band II: 59-134. 

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



(s.l.). Rec. South Austral. Mus. 6(4) :451-488, 



Linobiidae Oudemans, 1908 



Figures 290, 291 



Figure 290 Linohia coccinellae (Sco- 

 poli). Dorsum of female. (After Ber- 

 lese 1887) 



Diagnosis: The body of these 

 mites is broadly oval or pentago- 

 nal and there are no vertical setae 

 and no propodosomal shield. The 

 skin is otherwise smooth. The 

 chelicerae have only a sawlike, 

 movable chela. All tarsi are claw- 

 like but lack claws and have 

 stalked caruncles. There are no 

 rodlike sensory setae on tarsi i 

 and II. Two pairs of genital suck- 

 ers are present. The males lack 

 copulatory suckers. 



Figure 291 Linohia coccinellae (Sco- 

 poli). Chelicera. (After Berlese 1887) 



Genus: 



Linohia Berlese, 1884 (= Linocoptes Berlese, 1887) 

 Type. Acarus coccinellae Scopoli, 1763 



