1951] 
Fuller and Wharton — Trombiculidae 
87 
As for the generic names involved, strict application 
of the rules of priority leads to the following conclusion. 
Blankaartia Oudemans, 1911 (Type Trombidium niloticum 
Tragardh, 1904) has priority over Tragardhula Berlese, 
1912 (Type Trombidium niloticum Tragardh, 1904) ; Penta- 
gonella Thor, 1936 (Type Trombidium ardeae Tragardh, 
1904) ; and Megatrombicula Michener, 1946 (Type Trom- 
bicula alleei Ewing, 1938). All of these names should be 
applied at the subgeneric level at the present time. The 
proper name of the species named Trombidium niloticum , 
by Tragardh is therefore Trombicula ( Blankaartia ) nilo- 
tica (Tragardh), 1904. 
The species represented by the larvae associated with T. 
nilotica (Tragardh) has never been named. It is therefore 
necessary to name this species. It is a trombidiid and prob- 
ably belongs to the subfamily Microtrombidiinae. The adult 
must be known before the species can be assigned with cer- 
tainty to a subfamily. 
Pseudoblankaartia n. gen. 
Pseudoblankaartia is characterized by Oudemans, 1912, 
Zool. Jahrb., Supp. 14 : 118-119 under the name Blankaartia. 
The type of Pseudoblankaartia n. gen. is hereby designated 
as Pseudoblankaartia bequaerti n. sp. 
Pseudoblankaartia bequaerti n. sp. 
P. bequaerti is characterized by Oudemans, 1912, Zool. 
Jahrb., Supp. 14: 119-122 + Figure H. As type of the 
species we designate the specimen from which Oudemans 
prepared Figure H. 
A similar but less confusing condition exists in the case 
of Trombiculoides Jacot, 1938. Wharton, 1948, explains the 
details. Now that the portion of Opinion 168 mentioned 
above has been repudiated, Ewing’s 1946 solution of the 
problem is correct and Trombiculoides Jacot, 1938 should 
be considered a synonym of Sericothrombium Berlese, 1910. 
References 
Berlese, A. 
1913. Trombidiidae Prospetto dei generi e delle specie finora noti. 
Redia, 8:1-291. 
