to t. p. line to liind inarg;in. Orbicular moderate, concolorous, barely dis- 

 tinguishable by a faintly paler annulus. Reniform narrow, upright, medially 

 constricted, annulate in pale, the inferior portion darkened by the median 

 shade. Secondaries whitish, semi-transparent, with a dusky outer border. 

 Beneath powdery, with an outer common line and discal spot on all wings. 

 Expands 1.52 — 1.64 inches; 38 — 41 nun. 



Hub. — Colorado. 



Both sexes, collected by Mr. Bruce, in Mr. Neunioegen's col- 

 lection and coll. Rutgers College. The specimens before me are 

 nearly identical in color and markings, but judging from its ally I 

 am persuaded that forms will be found in which the maculation will 

 be as distinct as in angulata, and then the description of that species 

 will answer for the present as well, so far as ornamentation is con- 

 cerned. It is matter of interest that two species so nearly alike in 

 color, wing form and habitus generally should differ so strongly in 

 antennal structure. 



For mounting small specimens of Coleoptera, triangles or arms 

 of gelatine will be found greatly superior to those made of card- 

 board. The thin plates or sheets of gelatine used by photographers 

 are very nice and even, and very cheap. They are rather thin, but 

 twQ of them glued together make a good thickness. These trian- 

 gles are so transparent as to be almost invisible, and specimens 

 mounted thereon with Le Page's liquid glue will adhere readily and 

 permanently. What is wanted now is a cheap punch that will cut 

 the triangles neatly and of a regular and uniform size. 



Santa Rosa, Cal. L. E. RiCKSECKER. 



Mr. Ricksecker's note is interesting, and he kindly sent me a 

 sample of the gelatine plates. I found that they cut splendidly with 

 a punch, and that the pins pierced easily and held tightly. I found 

 also that the points curled in the sun and that they drooped when 

 exposed to moisture. In cutting points I select a medium card- 

 board and use punches of two sizes, but cutting the same length. 

 The best punches I have seen do not make a clean cut, and even 

 with a perfect scissors it is almost impossible to make a fine point 

 that has not a right and wrong side. Mr. Wenzel has the best ar- 

 rangement I have seen. He gets strips of card-board of uniform 

 width, and. on a block of boxwood, cuts with a razor. This works 

 rapidlv, and the cut is clean and smooth, cn-en the most slender 

 point being absolutely true and without curl. Mr. Ricksecker's 

 points look pretty, and if the gelatine could be made to repel mois- 

 ture, they would be perfect. — Ed. 



