148 
Prof. Miall and Mr. N. Walker on the 
and Scbiner, P. phaloenoides, Meig., is now called P. sex- 
punctata, Curtis, and P. phalsenoides , Linne, is considered 
as a separate species, of wliich P. nervosa, Meig., Ferris 
and Curtis (in 1850), are synonyms. (Compare the 
criticism of Bouchers statements given in the condensed 
account, below.) 
3. Y. EosEE, Corresp. Blatt. d. k. Wiirtt. Landw. Ver. 
(1834), i., p. 261, footnote referring to P. palustris, Mg. 
It contains nothing but the words : I have found the 
larva under a decayed mushroom/^ As P. palustris is a 
Pericoma, and the larvae of this genus, as far as known, 
are aquatic, the determination of the species seems to be 
doubtful. 
4. Ferris, Ann. d. Sc. Nat., 2® Ser., vol. xiii., 
pp. 346-348 (1840); Tab. vi., fig. b. Psychoda nervosa, 
M. (now called P. phalsenoides, Linne). The pupa repre- 
sented is that of Psychoda ; the larva belongs to some 
other family. (Compare the condensed account, below.) 
5. Erichson, Bericht, etc. (1840), p. 86. He calls 
attention to Ferris' s figure of the larva, and. points out 
its discrepancy from that of Bouche. (Compare the con- 
densed account, below.) 
6. Westwood, Introd., etc., ii., p. 521 (1840). Detailed 
description of a pupa of Psychoda, sent by Mr. Thwaites, 
and found in a dead snail's shell. 
7. GiMMERTHAL, Arb. d. Naturf. Yer. zu Riga, vol. i., 
p. 326 (1848). Psychoda hiimeralis, M., bred from a 
larva feeding on rotten potatoes. (Compare the criticism 
in the cond-ensed account, below.) 
8. SCHOLZ, Schl. Ent. Zeitschr. (1849), p. 20. Con- 
tains nothing but a reference to v. Roser. (Compare 
No. 3.) 
9. Curtis, J., Journ. Roy. Agric. Soc, vol. x., p. 403, 
Tab. v., figs. 47-50 (1850). Psychoda nervosa, M. 
(phalsenoides, Linne). A few words about the larva bred 
from rotten potatoes; the appended figures represent 
the pupa in three positions. 
10. Haliday, a. H., in F. Walker's Ins. Brit., Dipt, 
iii., pp. 253-263 (1856). (Compare the condensed 
account, below.) 
11. , Nat. Hist. Review, July, 1857, On some 
remaining blanks, etc.'' Contains, on p. 182, a list of 
references to publications on the metamorphosis of 
Psychoda. P. humeralis, Gimmerthal, is wrongly re- 
ferred to the genus Pericoma. 
12. Brauer, F., Denkschr., etc., vol. xlvii. (1883). 
