SYNONYMY OF SOME GENERA OF ANTS. 275 
Sallow, birch, poplar, ash, and beech abounded, and were accessible 
everywhere, as there are practically no fences to the fields or to the 
numerous small and large woods. 
On September 18th, Coenonympha pamphilus, Pararge meyera, Poly- 
gonia c-album, Rumicia phlaeas, and Gonepteryx rhamni were seen, and 
larve of A. urticae less than half grown, as well as imagines. 
Full fed Dasychira pudibunda larve were common on tree-trunks, 
and I noted a fine specimen of Ennomos autumnaria drying its wings 
on September 30th, and on the 8th I took Catocala nupta from a tele- 
graph post full in the sun. On October 10th, P. atalanta and A. 
urticae were seen. 
I have seen the lordly Apatura iris in flight here, a pleasure denied 
to me in England. Few Lycaenids were noted, although there is 
much chalk about. Celastrina argiolus was not uncommon in the 
spring; of Agriades coridon, Lycaena arion and Pararge aeyeria I have 
seen none in the two seasons. Argynnis paphia, Aphantopus hyperan- 
tus, Hpinephele tithonus, Colias edusa, Callophrys rubi, Lasiocampa 
quercus, Macrothylacia rubi, Orgyia antiqua, Malacosoma neustria, 
Arctia caia, and Amphidasis betularia were each represented by a few 
specimens. 
I saw Pharetra rumicis 2 on the south side of a tree at 2 p.m., 
June 22nd, and there she remained till 6 p.m., 24th. Is not this. 
apathy unusual ? 
In July I noted that the kilometre stones were used by Mpinephele 
jurtina (jantra) as resting places for the night, and that they almost 
invariably settled on the iron plate which bore the letters and numbers 
in raised characters, and often actually on these. Thesun had set, but 
the plate felt warmer than the stone. As many as nine specimens 
were seen on one plate. I should be glad to learn the explanation. 
Finally, what a welcome sight the entomological magazines 
afforded! In what curious scenes and abodes have their leaves been 
scanned by some of their readers in the years 1914-16 of the Christian. 
era !! 
Synonymy of some Genera of Ants. 
By HORACE DONISTHORPE, F.Z.S., F.E.S. 
(Continued from page 244.) 
3. On Lasius, Fabricius nec Jurine. 
In 1915 Morice and Durrant [Trans. Ent. Soc. Lond., 1944, 339- 
436 (1915)] reprinted with notes a paper by Jurine [Frl. Litt., 153- 
165 (1801)], over the validity of which there is a considerable differ- 
ence of opinion. If one accepts this paper it is necessary (among other 
changes in nomenclature which are brought about) to find a new name 
for Lasius, F. (1804), a genus of ants which sinks as a synonym of 
Lasius, Jur. (1801), a genus of bees. This was done by Morice and 
Durrant, who proposed the name of Donisthorpea. At that time they 
considered Acanthomyops, Mayr (1862), to be a good genus, and not a 
sub-genus of Lasius, F., as it is usually regarded; and they were not 
aware of Ruzsky’s sub-genera Dendrolasius and Chthonolasius (1912). 
