136 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



prceangusta were sent to Mr. TT. T. Stainton, the English authority on the 

 Tineina. Unfortunately, they were almost utterly destroyed in transitu. 

 One wing, however, Mr. Stainton recognized as that of the European 

 species 11. prceangusta. But whether it was the species referred by me 

 to prwangusta or that which T have called clemensella could not be deter- 

 mined. Bat on comparing my specimens with two of yrwangusta sent 

 to me by Mr. Stainton, I find that my clemensella only differs from this 

 species as follows: — It is a trifle larger; a larger part of the wings is 

 dark-colored, so that in the Colorado specimens there are no blackish 

 spots surrounded by ocherous, as in the European species, and thereby 

 separated as distinct from the other blackish parts of the wing, but the 

 blackish spots have, as it were, become confluent or coalesced with the 

 other blackish parts of the wing. I therefore now refer clemensella to 

 prwangusta. Then in the very points in which the European specimens 

 of pYaiangusta differ from clemensella, they approach the supposed prai- 

 angusta from Colorado; and wherein they approach clemensella, they 

 recede from the supposed preeanijvsta of Colorado. Thus the supposed 

 prazangusta from Colorado is smaller than the European species, and 

 while they have the blackish wing-spots as in the European species, 

 those spots can scarcely be said to be surrounded with ocherous but 

 rather with sordid whitish, and the entire wing is sordid white, compar- 

 atively little dusted with blackish. Thus the European praeangusta 

 seems to be almost equally near my supposed prceangusta from Colorado 

 and my clemensella. I consider all the specimens as variant forms of 

 prwangusta. 



Zaverna? coloradella n. sp. — Guided by the analogies of the palpi, 

 tongue, form and neuration of the wings, I place this species provis- 

 ionally in Laverna, though the smooth wings, ornamentation, basal joint 

 of the antennae, and perhaps the form of the head might exclude it 

 from that genus, which, however, as now accepted, is not very strictly 

 limited. The vertex in this species is longer than wide, and so is the 

 face : the basal joint of the antenna' is a lit f le enlarged, and has a minute 

 projecting tuft behind the stalk; tongue scaled; palpi overarching the 

 vertex, with the second joint enlarged toward the apex and the third one 

 pointed. 



White ; apical third of the primaries deeply stained with ocherous, 

 especially along the base of the dorsal cilia, and a pale ocherous patch on 

 the costal margin near the base extends to the fold ; hind wings grayish ; 

 upper surface of abdomen grayish-ocherous, each segment margined 

 behind with white ; legs yellowish. Expanse of wings, 5.\ lines. Edger- 

 ton, in July. 



Neuration of fore wings as in L. Stainton!, that of the hind wings as in 

 L. langiella, except that this has 5 instead of 4 veins to the hind mar- 

 gin, and the submedian and dorsal veins more distinct, perhaps more 

 like Chauliodus choir opliilellus. 



A larva of a species of Lavernaf burrows in the stem of Physalis 



