VOL. IV.] Notes on Lepidopterous LarvcE. 357 



propriate time to publish the following description of the larva, 

 which was drawn up some time ago. 



Larva. — I^ength (after being much contracted in alcohol), 20 

 to 32 mm.; greatest width (7th and 8th segments), 7^ to 10^ 

 mm. Black, naked except a few hairs on head and thoracic feet, 

 head and thoracic segments corneous dorsally and variegated 

 with whitish, rest of body fleshy. Three pairs of strong 3-jointed 

 thoracic legs, each armed with a stout terminal claw; five pairs 

 of prolegs, on segments 7 to 10 and 13. The lateral plates of 

 dorsa of segments are hardly whitish, or faintly so anteriorly in 

 continuation of the whitish lateral line of thoracic segments. 

 There is also an inner lateral line on each side on each of 

 the thoracic segments, and a median line on the prothoracic and 

 mesothoracic only. The prolegs, with lateral portions of ventral 

 surface, are also more or less whitish. Head is considerably nar- 

 rowed, about half retracted within prothoracic segment. Anten- 

 nae 3-jointed, first joint very stout and subconic with a truncate 

 apex, about as long as basal diameter; second joint very short 

 and retracted within the basal joint so that it is not conspicuous- 

 third joint slender and subcylindrical, nearly as long as basal 

 joint but not more than one-third its mean diameter, terminated 

 by a bristle nearly three times its own length. Maxillary palpi 

 4-jointed, basal 2 joints subequal, stout; third joint hardly as 

 long and about one-half the diameter of second; fourth joint 

 minute. Labial palpi slender, consisting of a basal elongate sub- 

 cylindric joint terminated by a stout, pointed, bristle-like style 

 about its own length, with a minute joint at its base. Spinneret 

 elongate, slender, pointed. Labium with a deep notch on ante- 

 rior margin, bristly. Mandibles very strong, strongly 4-toothed 

 apically. Head is in younger specimens mostly whitish, only 

 finely marked or speckled with blackish or brown. Prothoracic 

 segment a little wider than head, fully or more than one-half as 

 long as wide; mesothoracic segment wider than prothoracic but 

 only one-half as long; metathoracic slightly wider than meso- 

 thoracic, and about same length, as is also the fifth segment (first 

 abdominal), which latter is a little wider than metathoracic. 

 Segments 6 to 11 very gradually increasing in length, 11 being 

 the longest; 12 a little shorter and narrower; 13 a little long 



