666 



STATE BOARD OF AGRICULTURE. 



Closely related to Lccanhnn corriigatum is a variety collected at 

 Ithaca, N. Y., on Pitch-pine. It differs from the typical corriigatum 

 in the possession of four apical setae on the dorsal surface of each anal- 

 plate or at its margin; in the sliarply acuminate spiracular setae, and 

 in the comparatively shorter chitinons thickenings that extend forward 

 from the ventral surfaces of the anal-plates. There is in front of the 

 anal-plates a group of strongly marked small round structures which 

 show their conical form when viewed from the side. 



LECANiuM (ToumeijeUa) numismaticum sp. nov. 



A species on Scotch-pine collected at Trout Lake, Wisconsin, on 

 15 November, 1919, and sent in by Mr. Huber C. Hilton of the U. S. 

 Forestry Service. At this time the insects were adults but not of full 

 size. The females evidently winter as half-grown imagines. The male 

 puparium is 1/16 inch long, the customary longitudinal and transverse 

 ridges being practically absent, — the entire male pellicle being trans- 

 lucent, almost transparent and hyaline. The male scales are placed 

 usually on the twigs Avitli the females, although a few are on the leaves. 



Females about 1/8 inch long in November, in color, cherry-red to 

 reddish-brown, covered by a coat of thin, hyaline wax; skin much 

 wrinkled. Later the females turn brown and become a little larger. 

 The form inclines to rotund except where crowded into clusters of 

 superimposed individuals. Around the anal-plates and sometimes on 



Figure 3. 

 Lcconiiim nitmifimaticmn. — Antenna ; and 

 ventral view of anal-plates together with 

 the c'hitinous l)or(ler surrounding them ; 

 b, dorsal view of tips of plates showing 

 the apical setae. 



