THE CANADIAN ENTOMOLOGIST. 169 



(2.) The Cauda, which in agrimoniella tapers from the base to the 

 apex, in rudbeckiartan is spear-head shaped, with the base narrower than 

 the middle. These descriptions represent the cauda as seen from above. 



(3.) The apical portion of the stigma is narrower and more produced 

 tlian in agrimoniella. 



(4.) The femora are not at all black at distal end. 



(5.) The nectaries are green. This character distinguishes the 

 species from N". erigeronensis. 



N. rudbeckiarum turns orange-ferruginous mounted in balsam ; 

 darker than N. agrimoniella. 



Nedarophoru heleniella, sp. n. 



Hab. — Beulah, N. M., July 26, on flower-heads oi Heleniiim hoopesii, 

 Gray. Not numerous. 



Wi?iged $ . — Apple green, smaller and deeper coloured than N. 

 rudbeckiarum ; length of body about 2 mm., wings about 3^. Eyes 

 black ; nectaries only slightly dusky ; femora greenish, only moderately 

 suffused with blackish apically ; antennae black, except short basal joints 

 and extreme base of third joint ; third joint with nine large and four 

 small sensoria, the last one 45 /x from base of joint. Measurements in 

 ju, : Nectaries 710; cauda about 300, tapering from base to apex, in the 

 manner of N. agrimo?iiella ; beak about 600; anterior femur 920; 

 antennal joints, (3.) 770, (4.) 660; (5.) 530, (6a.) 140, (6b.) 1140. 

 iMarginal cell with substigmatal portion 320, poststigmatal 500. 



The apterous form (immature) has the cauda short and broad, broad- 

 pyramidal in outline seen from above. The immature form is slightly 

 pruinose, and has a darker green dorsal band. 



Ailed to N. geranii, but distinct. 



Nedarophora Martini, sp. n. 



Hab. — Beulah, N. M., 1902, on many plants. Named after my son 

 Martin, who used to help me collect insects at Beulah. The form on 

 Heleniuni may be taken as the type. Similar to N. sonclii (L ), of which 

 N. ambrosice (Thos.) is the American representative, if not a synonym, 

 but differs especially in the young, which are pruinose and do not share 

 the piliferous tubercles. It is also allied to N. sonchella, Monell, but the 

 fourth antennal joint is not tubercular, and to N. calendulce, Monell, but 

 that has the third joint very slightly tubercular. The two last-mentioned 

 are also not pruinose when young, so far as I can learn ; herein they will 

 agree with N. solidaginis, which is easily known from N. Martini by the 

 much redder, non-pruinose, young, as well as the shorter nectaries of the 

 winged female. 



