143 



we have already given but would note further that the venation is 

 that of Eupithecia and that the upper pair of spurs on the hind tibiae 

 may be present or wanting; in remorata we find the greatest develop- 

 ment of the frontal prominence but in the other species it is also readily 

 recognizable ; we would however warn against mistaking the conical 

 scale tuft found generally in the genus Eupithecia for the frontal pro- 

 tuberance of Prorella, this latter being actually a portion of the chit- 

 inous membrane and as well defined in denuded specimens as in those 

 fully scaled. It is possible that ravocostaliata and its allies must also 

 be referred here as they show a somewhat similar frontal projection, 

 but further study of the whole Eupithecia group will be necessary 

 before this is done. 



Nasusina insipidata Pears. (PI. XXII, Fig. 4). 



In our recent Check List we placed this species as a synonym of 

 incllisa Grossb., our knowledge of the species being based on the 

 Co-type from California in the American Museum; we recently ex- 

 amined the type from Las Vegas, N. M., in the National Museum 

 and we believe that this represents a species distinct from mellisa 

 (PI. XXII, Fig. 3) and is not the same thing as the New York Co-type; 

 it has a darker ground color with none of the ochreous shading found 

 in mellisa and with apparently a smaller discal dot. Until good series 

 of both these species are available for study it would be wise to keep 

 them apart. We figure our conception of both species. 



Eupithecia mendicata sp. nov. (PI. XXII, Fig. 2). 



Confused with Nasusina vaporata Pears. (Fig. 1) is another small 

 species from the same locality which may be separated primarily on 

 the frontal structure. We have already dealt with the structure of 

 vaporata; in the new species the front is typically Eupitheciid i. e. 

 sloping, non-protuberant and ending in a tuft of conical scaling; the 

 palpi are also somewhat longer than in vaporata and project slightly 

 beyond the front. Under the above name we describe the species as 

 follows : 



Primaries dull gray shaded along outer margin with smoky; the sub- 

 basal, antemedian and postmedian lines are distinct, dark and parallel, being 

 inclined sharply outwardly below costa, then angled or rounded and inwardly 

 oblique, parallel to outer margin, to inner margin; the median space formed by 

 the two latter lines is crossed by two further faint wavy lines and contains a 

 rather prominent dark discal dot; there are also several faint lines preceding 



