34 THE ENTOMOLOGIST’S RECORD. 
I have written in my note-book (October 14th)—*‘ The two Clavi- 
gers frequently sit for hours together on the gaster of the fuliginosa @ .”” 
Again, later, I wrote (June 19th) —‘‘ Removed the two Clavigers and 
introduced them into my D. aliena nest, as they seem to worry the 
fuliginosa Q.” 
I have recorded in a previous paper that these beetles generally sat. 
on the body of the fuliginosa female [Ent. Rec., 25, 291 (1913)). 
Crawley, when writing about our other species, Claviger testaceus, 
Preys., states [Hnt. Rec., 27, 206 (1915)]:—that the parasitic females- 
(D. wnbrata) ‘have an attraction for the myrmecophilous beetle Clavi- 
ger testaceus not possessed by L. niger or L. flavus. In two nests of L.. 
flavus containing two Claviyer and one queen, and fourteen Claviger 
and five queens respectively, and in one of L. niger with one queen andi 
one Claviyer, the beetles were never observed to cling to the bodies of 
the queens, whereas in two colonies of Lasius niger with a L. wmbratus: 
queen and two Claviger in each, the beetles were almost invariably 
clinging to the gasters of the queens, and often appeared to lick the: 
surface of the body.” 
This, however, as regards the behaviour of Claviger testaceus 
towards queens of PD. flavus, is contrary to the experience of other 
observers. 
Wasmann, when speaking of Claviger testaceus in nests of D. flava,. 
writes [Stet. Ent. Zeit., 62, 8 (1891)] :—“‘ When queens were in the 
nest, so sat the Claviger with pleasure (gern) on the large backs, or 
hindbodies of the same.”’ He also mentions a small colony of Strongy- 
lognathus testaceus with Tetramorium caespitum, in which he kept two 
Claviger testaceus for several months, and the two Clavigers often sat 
for half a day long on the back and hindbody of the Tetramorium 
queen. 
Hetschko records [Berlin Ent. Zeitschr., 44, 46 (1896)] that he 
found a Claviyer testaceus in a flava nest in nature, sitting on the queen, 
and he says, “In my observation nests the beetles commonly mount: 
on the queens (of D. flava) and hold themselves often two together on 
the backs and hindbodies, etc.’”” He also says they sit on the female 
pup and creep on to the newly hatched females. 
Janet [Report des Animaux Myr., 40 (1897)] also refers to the habit 
of Claviyer testaceus in sitting on the gasters of D. flava queens. 
I have also published similar observations. In 1909 I had an 
observation nest of D. flava, in which I kept a number of Claviger 
testaceus, and I wrote [Ent. Rec., 24, 288 (1909)]:—‘‘ As many as five 
or more specimens sat on and crawled about the @ ?, especially on 
their abdomiua, and I believe they ate the eggs as they were laid.” 
Again, when describing the habits of Claviyer [Col. Brit. Isles, 6 
(Supplement), 820 (1918)], I state “They are also very fond of riding 
on the ants (1). flava), especially on the queens.” 
I do not in any way wish to cast any doubt on my colleague’s 
observations, but only to show that according to the experience of 
others, it is the usual habit of these beetles to cling to the gaster of 
any queen, or queens, present in the nest in which they may be 
situated. 
Amphotis marginata, F.—This beetle, captured with D. fuliginosw 
on August 23rd, 1914, and introduced into my D. wnbrata observation 
