WM. G. DIETZ, M.D. 5 



seven species and ten varieties, making a total of sixty-six 

 species and eleven varieties distributed among seven genera. 

 The latter are distinguished as follows : 



1. Hindwings with seven veins 2. 



Hindwings with eight veins 3. 



2. Basal joint of antennae with pecten 1. Blastobasis. 



Basal joint of antennas with conchiloidal shield.. 2. Zeiiodochium. 



3. Veins 3 + 4 of hindwing free 4. 



Veins 3 + 4 of hindwing stemmed 3. Valeiitiuia. 



4. Vein 4 of hindwing from before angle of cell 4. Euresia. 



Veins 3+4 of hindwing from angle of cell 5. 



5. Basal joint of antennae with pecten 6. 



Basal joint of antennae with conchiloidal shield 5. Calosima. 



6. Forewings without ridge of raised scales 6. Holeocera. 



Forewings with such a ridge 7. Eubolepia. 



BLASTOBASIS Zell. 



Type phycidella Zell. 



Tongue of moderate length, scaly at base. Labial palpi 

 long, recurved, generally a little shorter and stouter in the 

 male than in the female. Basal joint of antennae broad, con- 

 vex, with well-marked pecten ; shaft excised above the base 

 in the male with scale tuft in the excision ; shortly ciliate 

 and finely denticulate beneath. Forewings more or less 

 elongate, pointed; twelve veins, 7 + 8 stemmed, 7 to costa, 

 remaining veins free. Hindwings with seven veins, 4 absent, 

 3 + 5 connate or stemmed. Hind tibiae with brush of setace- 

 ous hairs above. 



The only character which distinguishes this genus from the 

 other genera with long labial palpi are the hindwings with 

 seven veins only, agreeing in this with Zeiiodochium and 

 from which it differs by the pecten of the basal joint of the 

 antennae. 



Blastobasis citricolella Ch. and coccivorella Ch. belong to 

 Zenodochium Wish., Blastobasis umbiliella Zell., glandulella 

 Riley, is a Valentinia. Blastobasis subtraciella Walker, is a 

 Gelechid, Blastobasis sciaphilella TjqW.., {ractilinea 7j&\., quis- 

 quiliella Zell., livorella 7jzYl., and fluxella (?) Zell., belong 

 to Holeocera ; Blastobasis atdugella Zell., to Pigritia Clem. 



TRANS. AM. ENT. SOC, XXXVI. JANUARY, 1910. 



