Mesostigmata 



65 



are large and strongly toothed in the fashion of predaceous species. 

 Ascaids are not known to be of any medical or economic importance. 



References: 



Oudemans, A. C. 1939. Neue Funde auf dem Gebiete der Systematik und 

 der Nomenclatur der Acari. III. Zool. Anz. 126:20-24. 



Wharton, G. W. 1941. Acarina collected on the presidential cruise of 1938. 

 Smithsonian Miscellaneous Collections. 99. No. 12:1-8. 



Veigaiaidae Oudemans, 1939 



Figure 50 



Diagnosis: Veigaiaids may be 

 recognized not only by the four 

 tines of the forked seta on the 

 palpal tarsus but also by the pe- 

 culiar shape of the tectum. The 

 tectum has two small, lateral, 

 toothed processes and a long, 

 thin, median projection that may 

 or may not bear terminal teeth on 

 its slight anterior expansion. The 

 dorsal plate is divided into two 

 either completely or partially. 

 Partial division results when the 

 fissure between the plates does 

 not reach the midline. The epi- 

 gynial plate of the female is sig- 

 nificantly sclerotized only be- 

 tween coxae IV. The plate, 

 however, is extensive and has a thin anterior margin. Sclerotized 

 structures are present in the walls of the vagina. The male has apoph- 

 yses on leg II and a well-developed extension of the movable digit 

 for use in copulation. 



Figure 30 Veigaia transisalae (Oude- 

 mans), 1901. Ventral view of female. 

 (After Willmann 1936) 



Genera: 



Veigaia Oudemans, 1905 (= Cyrtolaelaps Berlese, 1892 non Berlese, 



1887) 

 Type. Gamasus uemorensis Koch, 1836 

 Cyrthydrolaekips Berlese, 1904 

 Type. Cyrthydrolaekips hirtus Berlese, 1904 



