132 THE CANADIAN ENTOMOLOGIST. 



^ . — -Scale flat, firm (not at all woolly), dull white, parallel-sided, 

 about ^ mm. long and not quite half as wide. ~ 



9 . — Adult dark brown even after boiling in liquor potassse, strongly 

 chitinized, spiracles large and conspicuous ; segmentation visible ; caudal 

 area brown and chitinized, except its basal portion, anterior to the anal 

 orifice, which is transparent and colourless. The non-chitinized area at 

 the base of the caudal plate permits the latter to be withdrawn almost 

 wholly into the body, leaving the tip only protruding. No circumgenital 

 glands. Caudal area very much wrinkled, with many round to oval dorsal 

 glands, arranged more or less in transverse rows, and also rather numerous 

 scattered small ventral glands. Anal orifice rather small, a long distance 

 from hind end. Caudal margin strongly crenate ; three larger protuber- 

 ances, more or less emarginate at the ends, may be taken to represent the 

 lobes ; between the median lobes, instead of two squames, are two lobules ; 

 between the first and second lobes are two or three lobules ; between the 

 second and third are three to five lobules. No squames, but laterad of 

 each lobe is a very long spine ; two spines laterad of the median lobes. 



$ . — Second stage not so chitinous, transparent after boiling; mouth- 

 parts far posterior ; antennse represented by very large subconical pro- 

 tuberances. 



Had. — On trunks and branches of Prosopis velutina, Wooton, near 

 Kellner's Ranch, several miles west of Phoenix, Arizona; Oct. ii, 1899. 

 (CkU.) Xerophilaspis prosopidis occurred on the same trees at the same 

 place. 



D. Arizonicus is remote enough from typical Diaspis, but by reason 

 of the median interlobular structure, and the arrangement of the dorsal 

 glands, it approaches nearer to the subg. Epidiaspis (type D. piricold). 

 It is probable that it will later be made the type of a new subgenus. 



A SALE OF BUTTERFLIES. 



Entomologists went from all parts of the country when the celebrated 

 collection of butterflies and moths made by the late Samuel Stevens, F.L. 

 S., F.E.S., was sold. Mr. Stevens had continued his work of collecting, 

 breeding, and buying for 60 years, and many specimens were already his- 

 toric, having come from other noted collections. The "large copper" butter- 

 fly, long since become extinct, always attracts bidders, but ^^^Z given for an 

 exceptionally fine male creates a record, and even for one of the females 

 jQd 5s. was bid. A specimen of the common " painted lady " also fetched 

 ;^8, while another of the same species cost its buyer jP^d ; os. A hand- 

 some " red admiral," which is perhaps nearly as often seen as the " small 

 tortoiseshell," was sold for ^5 los., while a " peacock" with 20 " eyes" 

 on its wings went for £^^. — Loudon., England., Globe (March 29, 1900). 



