.S52 THE CANADIAN ENTOMOLOGIST. 



More than 9 mm. in length. 



Clypeus notched coccitiifera. 



Clypeus sinuate Tejojiensis. 



Less than 9 mm. in lengtli. 



Head and thorax coarsely punctured or pitted distinctus. 



Head and thorax not coarsely punctured or pitted Cookei. 



This insect (D. Cookei) was first noted in the larval form about the 

 year 1883 by the late Matthew Cooke, then Chief E. ecutive Horticul- 

 tural officer of the State of California. Specimens of the larvae were 

 determined by him to belong to the family Tenthredinidce. Cooke's work 

 with the insect in question went no further than this, no adults being 

 examined by him (see " Injurious Insects of the Vineyard, Orchard, etc.," 

 pp. 137-138, Sacramento, 1883). During the spring and early summer 

 of the years 1905 and 1906 it became the writer's duty to make a field 

 study of this insect in the Suisun valley, California, and this paper records 

 certain of the observations then made. 



BOOK NOTICE. 



'•' Boulder Reveries." — By W. S. Blatchley. The Nature Publishing 

 Co., Indianapolis. 



This volume is made up of extracts from the diary of one who is in 

 sympathy with nature as she reveals herself by the wayside, in neglected 

 wood-lots, in purling stream, on the rugged hillside, or by the desolate 

 lake shore. The environment peculiar to these places in the summer 

 and autumn seasons envelops the reader as his mind meanders leisurely 

 over its pages The book does not call for ardent study, but simply for 

 an occasional perusal at times when the mind is jaded by the common 

 cares of life, and when it is impossible for one to get out with nature 

 herself in order to realize at first hand the refreshing influence of her 

 perennially soothing, strengthening and uplifting powers. No stirring 

 flights of the imagination are provided, but nature as she is seen by the 

 appreciative observer of insect, plant and animal life, of sunshine bright, 

 and cooling showers, is presented to the mind's eye by one who could 

 never be lonesome in lonely places. 



"Aug. 17, 1902. — How beautiful the green livery of nature in the 

 country on these mid-August days ! The many rains of the season have 

 enhanced the depth of that green, have clothed the face of the earth in 

 her most luxuriant garb. Peace, calm, quietude ; here, if anywhere, they 

 reign ! Not even the droning of a bumblebee breaks the quiet of the 

 Sabbath morn." This is a typical paragraph from the " Reveries." 



D. H. J. 



Mailed October 4th, 1906, 



