June 1S92.] 



PSYCHE. 



277 



banded with darker brown. Anal props 

 slender, green with a vertical brown stripe. 

 Anal shield shining green like the head. 

 Spiracles, heretofore unnoticeable, green 

 with a brown line on each side, and from 

 them spread white lines like veins, distinct 

 on the green sides of the larva. 



Aug. 27. 4th moult. 1 inch long. Head 

 large, round, smooth, shining green, with 

 a white line on each side of the median 

 suture, and a black line about halfway be- 

 tween this and the edge of head. This 

 black line was edged with whiter on the 

 outer side. Body green. First three seg- 

 ments had, on each side of dorsum, a wide 

 white longitudinal line, below that a nar- 

 rower one, below that a broken one. The 

 humps were as before except that on nth 

 segment, which became double. All the 

 humps were unevenly double, the first point 

 being longer than that behind it, as if the 

 second point grew out of the base of the 

 first. The white patches extended up the 

 sides of the humps, and between these 

 patches the green of the body, on the sides, 

 made oblique lines. Sides and venter 

 green. There was a broken substigmatal 

 line of brown edged above with yellow, ex- 

 tending from head to tips of anal props. 

 Feet green with a vertical dark line. Props, 

 green with a brown bar, this bar being 

 crossed by two darker brown lines. 



Aug. 30. The brown of the tips of the 

 humps had almost disappeared, as had the 

 substigmatal line. The principal color was 

 semi-opaque white, through which the deep 

 blue-green of the body appeared in lines 

 here and there, — notably the oblique lines 

 on the sides, — and on the venter. 



Sept. 3d. The larva was i| inches in 

 length and ^ inch from the venter to the 

 tip of the hump on 5th segment. In the 

 afternoon it grew dull in color, the humps 

 seemed to be retracted, and, the next day, 

 were almost level with the dorsal line, and 

 the larva looked small and moist. It spun a 

 few threads to fasten a leaf to the tin. 



Sept. 8th. The pupa appeared. Pupa 

 || inch long, neither stout nor slender, 

 dark brown with much darker head, thorax, 

 wing-cases, anal point, and bands between 

 the segments. Eye-cases prominent and 

 very smooth. Segments distinctly ridged 

 on the edges, and pitted between these 

 ridges. Anal point long, slender, sharp. 

 The pupa was very active, rolling a foot or 

 more at a time. 



Miscellaneous Notes. — By accident the 

 pages of the last number of Psyche were 

 marked April instead of May. 



An interesting sketch of protective resem- 

 blance as displayed in the animal world was 

 given in February before the Belgian acad- 

 emy by Dr. Felix Plateau, and will be found 

 in its Bulletins, pp. S9-135. Interesting ex- 

 amples among insects are given. 



A new classification of the Acaroidea with 

 full details and an enumeration of the genera 

 is given by Dr. Trouessart in the Revue des 

 sciences naturelles de l'Ouest of Paris for 

 January, 1892. Five suborders and ten fami- 

 lies are recognized and six of the latter are 

 separated into twenty-four subfamilies. 



The eighth part of the leisurely Introduc- 

 tion to entomology by Kolbe has appeared 

 and contains some interesting summaries. 

 The consideration of the muscles is con- 

 cluded, and the mechanism and physiology 

 of flight and other movements considered 

 with interesting topical bibliographies. The 

 nervous system is then taken up and its main 

 features and especially the brain discussed, 

 followed again by bibliographies. 



The extensive but in no way expensive 

 work upon the families and genera of butter- 

 flies begun in 1885 by Schatz and continued 

 after his death in 1887 by Rober has just been 

 completed by the publication of the sixth 

 part. The neuration of nearly five hundred 

 different butterflies, representing almost as 

 many genera and accompanied by some rude 

 details of the structure of the legs, palpi, and 



