Synonymic List of the European Trichopterygide. 445 
laticolle, Hochh. 
Heydeni, Flach. 
myrmecophilum, Mots. 
Sormicetorum, Kraatz. 
Kraatzi, Matth. 
pusillum, Gyll. 
apicale, Krichs. 
evanescens, Marsh. 
punctatum, Mots. 
ternunale, Hald. 
Var. corpulentum, Lucas. 
Var. atomaroides, Mots. 
Var. maroccanum, Flach. 
Brisouti, Matth. 
nitidum, Bris. 
evanescens, Mots. 
Var. longicorne, Fuss. 
Var. orentale, Flach. 
obotritis, Flach. 
punctatum, Gyll. 
alutaceum, Gillm. 
hittorale, Mots. 
Gillmeisterium, Flach. 
mitidum, Heer. 
pusillum, Erichs. 
4-foveolatum, Allib. 
minutissmum, Steph. 
Var. insulare, Flach. 
Var. Matthews, Flach. 
levigatum, Gillm. 
punctatum, Steph. 
Reitteri, Flach. 
If the characters on which these subgenera are founded 
result in the combination of such miscellaneous groups as 
those exhibited in the foregoing list, they must be radically 
false and deceptive. P. Gressnert shows the most striking 
dissimilarity in form and outline to every other species of 
Ptenidium, unless it be to Dr. Flach’s new species, with which 
I am unacquainted. P. levigatum, Gillm., is very closely 
allied to P. nitidum, Heer. My own description of this 
species was made from an example presented to me by 
Dr. Aubé, which had been verified by Gillmeister himself, 
and therefore authentically typical. P. atomaroides (whether 
assigned to myself or to Col. Motschulsky) can be associated 
with no other than P. evanescens. If by the words “ ex typ.” 
(appended to this name in his list) Dr. Flach means to 
insinuate that he received the type from myself, I can only 
say that I never sent an example of any species whatever to 
Dr. Flach, although I have offered to do so, and I positively 
