Cljc OtaiiaMan d^ntomologisl 



VOL. XXI. LONDON, APRIL, 1889. No. 4. 



DESCRIPTION OF THE PREPARATORY STAGES OF ARGE 

 GALATHEA, Linn., WITH NOTES ON CERTAIN SATYRIN^. 



BY W. H. EDWARDS, COALBUKGH, W. VA. 



Egg. — Sub-ovoid, broadest on lower third, the base flattened ; 

 covered with a very sHght rhomboidal network over the upper third, with 

 iow knobs at the angles ; on the middle the network is still more slight, 

 but the knobs are distinct, and on the lower third the knobs are minute 

 and unconnected by lines ; summit flattened, concave ; the micropyle in 

 centre of very fine network without knobs ; colour bone-white. Duration 

 of this stage about 20 days. 



Young Larva. — Length, at 1 2 hours from the egg, . i inch ; thickest 

 anteriorly, tapering to 13, which ends in two short sub-conical tails ; colour 

 yellow, with a tint of red ; the tubercles arranged as in Erebia, forming 

 three longitudinal rows on either side ; these are small, conical, each with 

 a long curved whitish hair ; feet, legs and under side same colour as upper 

 surface ; head sub-globose, broader than 2, granulated, with a few whitish 

 points and long hairs ; colour brownish-yellow. The larvae hibernated 

 from the egg. 



After First Moult. — Length at 12 hours, .18 inch; colour yellow-buff; 

 a narrow pinkish mid-dorsal stripe, a sub dorsal same width, then as much 

 of buff" on side, and a broad pinkish stripe to the basal ridge, which is 

 yellowish ; under side, feet and legs, yellow-brown ; body covered with a 

 downy coat of yellowish hairs from fine points, and among them on each 

 segment are black hairs from larger and darker tubercles ; head sub- 

 globose, yellow. brown, with yellow and black hairs like those of body. 

 Duration of this stage 1 1 days. 



After Second Moult. — Length .3 inch; stout; yellow-buff; a darker 

 mid-dorsal stripe, and a similar broad lateral band ; the basal ridge paler 

 than the ground; under side greenish-buff; thickly covered with buff 

 hairs; head green-buff. Duration of this stage 10 days. 



