THE SMALL PRIMARIES OF LEPIDOPTEROUS LARVAE. 
Wo. T. M. Fores. 
Attention has been called in the June number of the ANNALS 
to certain minute sete which occur in all the known Lepidop- 
terous larve, but which are inconspicuous save in a few cases, 
and have not been used in purely systematic work. The 
following references to papers where they are mentioned and 
figured may be of use. They appear to be strangely fated, 
having received no less than four different nomenclatures, besides 
a fifth which was never published, and so may be ignored. 
I believe they were discovered by Charles. B. Simpson, 
working in the Entomological Laboratory of-Cornell University, 
and are described and figured in his manuscript thesis deposited 
here in 1899. His work called my attention to them, and I 
designated them by numbers. similar to those assigned by 
Dyar to the larger setz, in my dissertation published in the 
ANNALS in 1910. .They are mentioned there only incidentally 
as they proved of no apparent taxonomic value. Fracker 
mentions and figures them in his thesis (Illinois Biological 
Monographs, Vol. 2, No. 1, p. 83, etc.). giving them new 
designations. Tsou (Trans. Am. Mier. Soe. 33, 223, 1914) 
discusses the thorax subdorsal group-in detail; and I again 
mention and figure the sete in Hepialus (Journ. N. Y. Ent. 
Soc. 24, 1387-142, 1916). Finally actual priority of publication 
appears to belo to Quail and Bacot in Notes on Cosside, with 
its appended footnote, published in, the Entomologist, Vol. 37, 
p. 93, in 1904; where they are mentioned and figured, though 
not given a name. : There are certainly other ‘references, but 
only these are now at hand. 
The names which these sete have received may be tabulated 
as follows: 
- | Thorax and 
Thorax, Abdomen ~ ‘Atsdornen 
Borbesse. 5 5- xa xb | xe xd (1) (2) x ilia 1x 
BDrackeranncier gam a| ~do.-| do do tau — _|gam/’a]epsi’n| omega 
RMsougveseeer Ala: Albs]. A2a | A2b | Pl = Al A2 P4 
Garmaneeeeer A JB) l= ID) 1B, oP {C B riley G 
NOTES. | 
(1) I seem. to have overlooked this seta. 
(2) This seta-is-not generally present, though apparently a vegudiee peers of 
the Cosside; I omitted it froma discussion, regarding it as a subprimary. 
Postscript—Professor Comstock has called my attention to two recent papers 
by A. Schierbeek (Proc. Koninkl. Akad. v. Wetensch te Amsterdam 19, 1, 1916; 
and Onderzoekinzen verricht in het -zool: Lab. der Rijksuniv--Groningen, VI, 1917). 
His account is confused, but ix and Fracker’s tau (propedalis), and itia (prostig= 
malis) are identifiable. 
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