580 Dr. Thomas Algernon Chapman on the 



branch of the butterfly stem, cannot be so, as the eggs 

 are tlat. 



C/ioreutldx find their location somewhere low down, no 

 doubt on the Noctuid division of the stem. This position 

 explains at once the difficulty that systematists have felt 

 to be unsolved, whether they place it on the Tiueids or 

 Tortricids. The egg is of a most beautifid and typical 

 upright form. 



The dorsal armature of the pupa of some genera is 

 of a form I have met with nowhere else, being a close- 

 set row of nearly spherical cups instead of the usual 

 spines. 



Nolidai are possibly a branch from a point tolerably 

 high up, but below the Notodontid division, advancing 

 separatel}', so as to take rank, as judged by the pupa, at 

 least as high as the summit of the Noctuid crown. The 

 egg is extremely curious in one remarkable point ; it is 

 clearly an upright egg, ribbed, and broadly not unlike a 

 Noctua egg, but is the only upright egg I have met with 

 in which the horizontal section is not circular; this sug- 

 gests an origin from the main stem low enough down to 

 admit of such a variation taking place. The young 

 larva, according to the opinion of Mr. Dyar, who kindly 

 examined them, agrees very well with this position, whilst 

 the loss of one pair of prolegs is a very ancient variation, 

 no trace of the missing pair being discoverable even in 

 the newly-hatched larva. 



The pupa is also quite anomalous, regarded as a Macro; 

 ■but would be explicable in the position I assign to it. It 

 has only one movable segment, the fifth abdominal, and 

 the terminal segments ai-e very curiously abridged, so as 

 to produce a fiat end to the pupa, reminding one of 

 Hepialus ; the arrangement of the appendages is also 

 inconsistent with a definite Macro position, the tarsi of 

 the second and third pairs of legs projecting side by side 

 beyond the wiugs and antennas as a free process as far 

 as the incision between the fifth and sixth segments. 

 "Jhe detection by Mr. Hampson of maxillary palpi 

 in a Nolid would not, in this view, be surprising ; but 

 would pos&ibly suggest that Nolids are really a branch 

 of the Tineid stirps that retains the maxillary palpi ; the 

 unequal axes of the egg would be a record of more recent 

 and separate derivation from a flat egg form. 



Chrysocorys, which a'most certainly belongs to this 



