218 THE ENTOMOLOGIST. 
AssEMBLING. — During July I have tried “assembling” with several 
species of Macro-Lepidoptera, and have been successful with three, viz., 
Porthesia similis, Odonestis potatoria, and Uropteryx sambucaria.  P. 
similis: I placed a female in our garden on the 19th—a cold, windy night 
—but did not get anything ; on the 20th—another cold night—I took it to 
a small wood, and obtained one male, which made its appearance at 10.35. 
O. potatoria: A friend bred a female, and we took it out on the 15th and 
16th, cold, damp nights; one male came on the first night at 9.40. 
I afterwards bred two females of this species, and took them out several 
nights, but they failed to attract the opposite sex. U.sambucaria: On 3rd 
and 4th—warm, bright, and windy nights—I placed a female in a sheltered 
spot in our garden, with the following results:—38rd, ten males, first at 
10.15, last 10.45; 4th, four males, first at 10.10, last 10.85. There was a 
marked difference in the three insects in their manner of approaching the 
cage; P. similis immediately alighted on the gauze, and searched all over 
the cage for an entrance; O. potatoria dashed wildly around, sometimes 
knocking against the cage, but never settling on it; U. sambucaria came 
very slowly, and was very shy till it had been on the cage about a minute, 
when it could be easily boxed. — P. T. Laruy; Bexley Heath, Kent, 
August 11, 1892. 
ASSEMBLING OF Mates or ACIDALIA BISETATA. — On the evening of 
July 21st I noticed a number of small white moths hovering in a cluster 
over a leaf, and found that under the leaf were a pair of Acidalia bisetata, 
the moths round being eight or ten males of the same species.—R. M. 
Pripgeavx ; Clifton. 
CONFUSION BETWEEN Larv® or DREPANA FALCULA AND D. sicuLA.— 
I should like just to draw attention to what may not bea universally known 
error in Newman’s plate of the larve of Cuspidates. It is that the larva 
named ‘ Drepana sicula” is evidently not that species, but is a woodcut of 
D. falcula. Having once seen the larve of both species, it would be im- 
possible to confuse the two.—R. M. Pripuavux; 9, Vyvyan Terrace, Clifton, 
Bristol, Aug. 7, 1892. 
LepIpopTERA IN THE Brack Forest, Germany. — Whilst staying 
recently at Bad Boll, Bonndorf, Baden, towards the end of July, I noticed 
Parnassius apollo commonly close to the river, flying over rank vegetation 
and among willows at about 1800 feet above sea-level, also in open places in 
the fir-woods ; some specimens had reddish orange spots instead of the 
usual crimson ones. I have never seen this species below 4500 feet in 
Switzerland. Apatura iris, common, and frequently found settling on wet 
places on the roads. In England iris is a difficult insect to capture, but 
this does not appear to be the case in the Black Forest, as I saw a boy 
catch several specimens with his hat. The following butterflies were 
abundant :—Vanessa c-album, V. polychloros, V. atalanta, V. cardui, Colias 
hyale, Polyommatus virgaureea, Lycena corydon, L. damon, Melanargia 
galatea, Hrebia ligea, Argynnis paphia, A. niobe, A. adippe, Melitaa didyma, 
Hesperia sylvanus. Among the moths I observed Sphinaw pinastri ; a fine 
specimen of Plusia bractea came to light in the hotel, and many Noctus 
were buzzing about the rooms of an evening. Geometre appeared to be 
plentiful. As I was intent on fishing and not on collecting insects, I did 
not make many captures of the latter, I may add that the hotel seems a 
