NYMPIIALIXAK: 15RENTIIIS MYRINA. 597 



I'^i'coiul stcKje. Head black or blackish castaiieons, smooth, shining, -with a few long- 

 black and pale hairs ; ocelli black ; mouth parts dark luteous. Body marked with pale 

 and darker green, the darker green occupying and surrounding all the elevations, the 

 pale green most conspicuous in a In-oad dorsal l)and, interrui)ted by a darker dorsal 

 spot and a pair of similar sulxlorsal spots at the posterior extremity of each segment; 

 tlio paler spots are also found conspicuously in a lateral band on alternate segments, 

 and also below the suprastigmatal row of spines; tubercles blackish green, seated 

 on a dark green elevation, its needles black, tlie laterodorsal ones of the first thoracic 

 segment not noticeably longer than the others. Legs greenish, marked exteriorly 

 with fuscous; prolegs dusky green, tipped with pellucid. Lengtli, 4 mm. 



Third stage (79 : 8). Head dark metallic green, with a feAv scattered blackish hairs. 

 Body of the same general color as in the second stage, but greatly mottled Avith dull 

 brownish luteous and very pale purplish, the former more conspicuous in spots on the 

 sides of the body between the laterodorsal and sui)rastigmatal rows of tubercles ; the 

 laterodorsal tubercles of the first thoracic segment liave become twice as long as any 

 of the others. Spiracles blackish fuscous, with a whitish dot in the centre. Legs 

 black. Length, 11 mm. ; breadth of body, 2 mm. ; length of anterior spine, 1.25 mm. ; 

 lireadth of head, about .8 mm. 



Fourth stage. The general colors remain the same, both for iiead and l)ody, as in 

 the previous stage, but all the tubercles excepting the long ones of the first thoracic 

 segment have become pale luteous — those of the thoracic segments a little brighter 

 than the others — with blackish needles. The long tubercles are pale luteous at base, 

 the remainder blackish fuscous; the luteous portion is thickened, the dusky part slen- 

 der but thickened slightly near the tip, the needles black. 



Last stage (75 : 2, 8 ; 79 : 9). In colors the insect remahis the same, but the tul)ercles 

 (86 :81) having attained their full development, those of the laterodorsal roAV on the 

 first thoracic segment are strikingly different from the others, being fully four times 

 as long, in shape much as in the previous stage, about as large at tip as at base, cylin- 

 drical or perhaps a little appressed in the middle half, the apex bluntly rounded, the 

 needles al^out as frequent and as long as on the shorter tubercles, and directed upward 

 at an angle of about 45° with the tubercle. Length of body, 15 mm. ; breadth, 3 mm. : 

 length of anterior spines, 2.5; length of other spines, .75 mm. 



The laterodorsal tubercles of the first thoracic segment are first noticeably longer 

 than those of B. bellona in the third stage, more noticeable from the fact that on the 

 otiier segments the tubercles of the same row are relatively shorter than in its 

 coiigonev. 



Chrysalis (84: 12-14). Head, thorax and appendages brownisli luteous, the edges 

 of the wings a little beclouded with fuscous, the centre dashed with blackish, the 

 tibiae tipped with blackish, the antennae marked with pale; back of the thorax occa- 

 sionally infuscated and the front a little streaked Avith fuscous. Ocellar prominences 

 separated by a narrower space than in bellona, their inner surfaces brownish and 

 united by a narrow brownish band, anteriorly edged with pale. Abdomen blackish 

 fuscous, streaked longitudinally, and on the posterior border of the segments in 

 circlets, with dull brownish luteous; a series of infuscated dorsal spots of brownish 

 luteous, broadening from the anterior to the posterior edges of the segments; latero- 

 dorsal tubercles almost uniformly conical ; those of the first abdominal segment 

 smaller than those on the adjoining segments ; those of the thoracic and first and sec- 

 ond abdominal segments glistening throughout like mother-of-pearl ; the others yel- 

 lowish brown, minutely tipped with black, connected Avith the middle of the anterior 

 edge of the segment by an indistinct pale bluish ridge. Spiracles dull luteous, lips 

 infuscated; cremaster dull reddi-sh. Length, 12 mm. ; breadth at ocellar prominences, 

 2.^)5 mm. ; breadth at basal Aving prominences, 4 mm.; breadth at fourth abdominal 

 segment, 3.5 mm. ; height at thorax, 3.r> mm. ; height at third abdominal segment. 

 4.25 mm. 



Geographical distribution (22 :1). Thii' butterfly is Avklely spread 



