394 



XOVITATES ZOOLOOICAE XXV. 1918. 



usually widely separated ; o, G 



sometimes stalked, 7 separate . 82. Phycidae 



b". Head with appressed scales or 

 smooth ; maxillary palpi rudi- 

 mentary or absent. 



a". Palpi usually curved, upturned, 

 the third joint often trans- 

 versely appressed, pointed, or 

 obtuse ; hindwing broadly 

 ovate-triangular to trapezoidal, 

 seldom lanceolate, the lower 

 margin of cell on upperside not 

 fringed with setae ; forewiiig 

 elongate or subtriangular, often 

 moderately broad * . . 73. Simaethidae 



b". Palpi bent, ascending, acuminate, 

 at tip, with the scales of second 

 joint somewhat angularly pro- 

 jecting beneath at apex ; fore- 

 wing with vem 5 absent, 7, 8 

 coincident, ending on costa ; 

 hindwing lanceolate . . 74. Haplopiliadae 



c'*. Palpi moderate, ascendmg ; fore- 

 wing with costal stigma, vein 7 

 ending on the termen : head 

 with appressed scales or rough 

 on vertex .... 76. H ypsilophidae 



d". Palpi moderate, curved, acumin- 

 ate at tip ; antennae witli pecten 

 on basal joint; forewing with 

 veins 7, 8 stalked or coincident, 

 endmg on costa, 6 arising from 

 7 ; hindwing lanceolate ; veins 

 2 to 4 nearly parallel, 6, 7 

 stalked, often with an extra 

 vein arising from 7 towards 



costa, 8 free .... 77. Cycnodiadae 



B. Hindwing with the cell emitting more than six veuis.f 



a. Maxillary palpi and tibial spurs absent ...... 87. Hepialidae 



b. Maxillary palpi and tibial spurs well developed. 



a'. Bitmg mandibles not present ....... 88. Eriocraniadae 



b^. Biting mandibles present ........ 89. Eriocephalidae 



* In cases of difficulty of determination between Simaethidae and Eucosmidae the following 

 may bo useful : 



Eucosmidae. Hindwing on upperside with the lower margin of cell fringed with setae ; fore- 

 wing with the vein in the cell to between veins 4, 5 (the upper fork obsolete). 



Simaethidae. Hindwing on upperside with the lower margin of cell not fringed with setne ; 

 forewing with the vein in the coll to between veins 5. ti (the lower fork obsolete). 



■f In a few Microlepidoplera the cell emits more than 6 veins. 



