262 THE ENTOMOLQGtST's RECORD. 



threads, one to each of the angular points of its surrounding hexagon, 

 which are also somewhat raised. These divide the polygonal reticula- 

 tion into a secondary triangular reticulation. The white knobs (placed 

 centrally in the hexagons) are arranged in four concentric rings, and 

 extend, roughly, in lines, from the longitudinal ribs towards the apex 

 of the egg, becoming smaller as they approach the apex. This white 

 reticulation stops short at the micropylar area, which forms a clear 

 yellowish depression, exceedingly finely reticulated. There are 35 

 shiny white transverse ribs between the base and the shoulder of the 

 egg, well marked in the depressions, but almost obsolete on the sum- 

 mits of the longitudinal ribs. After three or four days the egg becomes 

 irregularly mottled with small purplish spots and blotches, and the 

 ribs (both longitudinal and transverse) are strikingly prominent and 

 very shiny : the micropylar area is still yellow, and looks like a tiny 

 star with three radii united by numerous fine concentric rings running 

 round the central point. [Eggs laid on August 18th, on sides of a 

 box, by a $ captured at Susa ; rough description of newly-laid egg 

 made same day, full description under a two-thirds lens on August 

 23rd.] On August loth, I observed of an egg laid by a 5 captured 

 some three or four days previously, at Susa, that it was " rather more 

 rounded at the apex than that of Erebia ttjmlani^, but otherwise of 

 almost exactly the same shape, and with a marked blunt cylindrical 

 peduncle forming the base of attachment." Although I examined 

 some six or eight difierent eggs of this species afterwards, I found no 

 other with this marked pedunculated base. The egg must therefore 

 have been aberrant in this particular. 



Erebia act/iiops. — Of a pale yellow colour when laid, roughly 

 spherical in shape, the shell rather dull in appearance, with 22 fine 

 but very distinctly developed longitudinal ribs running from base to 

 the micropyle, which is not quite at the summit of the egg examined, 

 the latter being turned slightly to one side. The longitudinal ribs are 

 crossed by a large number of fine transverse ribs. The micropyle 

 forms a central stella, with fine radiating lines extending from the 

 central point of a shallow depression, which is bounded by the termini 

 of the longitudinal ribs. [Description made on August 13th, under a 

 two-thirds lens used as a hand lens, from an egg laid in a box by a $ 

 captured at Susa the preceding day.] Buckler says the egg is 

 " glistening " in appearance, and has " about 30 longitudinal ribs." 



Polyommatm ronjdon. — The egg forms a flattened disc with a quite 

 flattened base, and viewed laterally has the outline of a flattened 

 cheese with rounded edges. Viewed from above, there is nothing of 

 which I can think that the egg so closely resembles as the well-grown 

 blossom of a double dahlia. It is of a pale green colour. The micro- 

 pyle forms a depressed area in the centre (at the apex), and is 

 composed of rings of the very finest rounded cells, arranged con- 

 centrically. This area is of a rather darker green than the general 

 colour. Around this, and over the greater part of the upper (and still 

 somewhat depressed) area of the egg, the cells assume a rough quad- 

 rangular and polygonal (mostly pentagonal) form, arranged concentri- 

 cally, and increasing in size from the micropylar area outwards, the edges 

 of the cells being formed of fine raised silvery white lines. Outside 

 this area, i.e., covering the outer portion of the upper part of the egg 

 and the sides, there are (viewed from above) five rings of squat pyra- 



