192 THE CANADIAN ENTOMOLOCIST 



The ventral surface is strongh'^ inflated at the metathorax, 

 the abdomen strongly ol)lique from the metathorax to the apex; 

 the last segment strongly flattened and the hist three sutures 

 very deep; clothed with greyish, stout, plumose, scale-like hairs 

 with slender f)lumose hairs intennixed towards the middle line, 

 with a dark area covering the last two segments and tlie caudal 

 border of the 3rd densely clothed with erect black hairs. 



The male has the front less concave, with a well-developed 

 acute postepistomal median carina, with the hairs on the epistoma 

 short except the marginal fringe, which is moderately long. 



Labels with the type: San Diego. (\il., 7-18-15, dive, 9. 

 Adults and work in oli\e branches were received from Professor 

 E. O. Essig and Dr. K. ('. \'an l)\ke. The species was taken from 

 living oli\e trees, at San Diego, Cal.. in 1914, and was causing 

 much injury to the host. Two specimens of the same species were 

 received from Mr. Ralph Hopping, taken 1)\ him on brush in the 

 chapparal belt, C'am() (M-eel\-, Fresno Co., Cal., 8, ()()() ft., in 1909. 



The type of this species is in the collection of the Entomo- 

 logical Branch. Ottawa. 



THE NYMPHS OF ENALLAC.MA CYATHIC.ERUM AND 



E. CALVERTI. 



HV I£. M. W.M.KICR, TORONTO. 



The nymph of Enallafi^ma cyathi^erum Charp. has been de" 

 scribed by Lucas ('00)' and Ris ('09)-, that of E. calverti Morse 

 by the present writer ('13)'^. No description of the nymph of the 

 former species based on American specimens has, however, yet 

 appeared, and this has been a desideratum for two reasons. 



In the first place the American form of cyatlii»ern7fi was 

 originally described as a distinct species {E. annexum Hagen), and 

 has been frequently cited under this name, or as E. cyathi^eriim 

 race annexum, and although Williamson ('02)^ pointed out its 

 identity with cyathigerum, and has been generally followed, the 

 question of the validity of annexum as a race has always seemed 

 to me not indisputable. 1 have examined a large number of Cana- 

 dian specimens from a very wide range of territory and also a 

 number of F3uropean examples, and, although I regard them all 

 as one species, I have never had anv difliculty in separating the 



June, 191G 



