—62 — 



Clisiocampa fragilis, Stretch. 



Cocoon. —The cocoon of this species is more delicate and finer in texture than any 

 other of the genus. It is pure white, very closely spun, narrow, and is attached at 

 the sides to two or three stems of gra^s or other plants which may be convenient, and 

 being generally free from any impurities, it is quite a pretty oljject. I have never 

 taken the species e.\cept upon the sides of Mt. Davidson, Nevada. I Ijelieve the larva 

 feeds on a species of Compositir, allied to Bigelovia. Len^^th 25 mm. Width 12 mm. 



Sphingicampa 4 lineata, G. cS; R. 



Pupa. - In shape very like that of Anisota, but comparatively a little longer. It 

 is pitchy black throughout, the junction of the abdominal segments a little paler. 

 The entire surface is very rough, and covered with minute raised spines. On the 

 posterior margin of the last 5 abdominal segments is a row of raised teeth, and a 

 similar row on the anterior margin of all the segments. These extend entirely around 

 the body. On the top of the first segment behind the head case are two raised 

 shining large black tubercles. The cremaster is very long bifurcate, and extremely 

 rough. Length, including cremaster, 54 mm. Width 16 mm. 



Citheronia Mexicana, G. & R. 



/Vc/rt, — Scarcely distinguishable trom that of C. regalis, except that it is much 

 smoother, and the spiracles much larger in size. They are also raised considerably 

 above the surface of the segments. The cremaster is also smooth at its tip. 



Hyperchiria Pamina, Neumoegen. 



Larval Stages. — After jrd moult. — Ground color of the dorsal region, pitchy 

 black. On the dorsum are 4 slightly waved cream colored stripes, extending from 

 the base of the head to the anal segment, and of equal width throughout. The 

 lateral regiori bears a broad cream colored stripe uneven on its edges and enclosing 

 some lengthened cuneiform patches of a reddish brown shade, faintly spotted with 

 dull orange. Each segment bears a bunch of much branched tubercular spines, jet 

 black, those of the anterior segments the longest. The ventral region is dull brown, 

 with broad diffused central stripe of cream color. Head black, mouth parts tawny. 

 Prolegs black, abdominal legs dull reddish. Length 35 mm. Width 6 mm. 



After 4th moult. — The ground color has now become pale buff, each segment 

 dorsally bearing 4 black waved streaks. The subdorsal region is broadly black, with 

 a buff ovate patch on each segment. Laterally the color is now much brighter, hav- 

 ing changed to a dull crimson shade below the spiracles. Sub-ventral region black, 

 with red markings and a broad central stripe of dull buff. The bases of the Ininches 

 of spines are now cream color. Length 48 mm. Width 8 mm. 



Full gro^vn larva.— The whole of the dorsal and subdorsal regions are now 

 bright buff, the black stripes on the upper surface reduced to mere lines, which are 

 slightly waved , and inclined to be confluent. In frpnt, and at the sides of the 5th, 

 6th, 7th, 8th, 9th and loth segments is a broad, triangular red patch, followed by a 

 black line. The spiracles are cream color, and the space below them, immediately 

 above the base of the legs is broadly black, and a red patch on the anterior and 

 posterior edge of each segment, and many yellowish irrorations scattered over the 

 surface. Ventral region dull yellow, with a cream colored central stripe. Head 

 olivaceous. Legs all black, with the tips red, the anal plates also ot the latter color. 

 The tips of the branched spines only are black, the rest being a bright buff. Length 

 75 mm. Width 10 mm. 



