128 GEO. D. HULST. 



3. ]?I. caliginella Hulst. Ento. Am. iii, 131, Oct. 1887 { Nephojjtenjx) ; Ento. 

 Am. V. 156, 1889; comptella Rag., Diag. N. A. Phyc. p. 4, Dec. 1887 iAcrobasis).— 

 Expands 21 mm. Head fuscous gray. Palpi black, with a few gray scales. 

 Thorax gray in front, fuscous behind. Abdomen ocher fuscous, the segments 

 darker anteriorly. Fore wings very much the color of Phycita indigenella, light 

 gray on anterior portion of ba-sal and central field, fuscous on po.sterior portion. 

 Basal cross-line subparallel with outer line, twice dentate outwardly, clear white 

 anteriorly, gray towards inner margin, shaded outwardly. Outer line gray, sub- 

 parallel with margin, with large sinus outwardly near middle, faintly shadowed 

 on both sides. Outer space fuscous, shading into gray towards margin. An in- 

 terrupted row of black points on the margin with fuscous gray fringes not inter- 

 lined. Hind wings light fuscous, with dark fuscous marginal line. Beneath 

 dark fuscous on fore wings and at apex of hind wings, the latter otherwise light 

 fuscous. 



Arizona, California. 



4. M. vacciiiii Riley, Can. Ento. xvi, 237, 1884 (Acrobasis) ; Dejit. Agric. 

 Rept. 1884, 352; Smith, Dept. Agric. Rept. 1884, 394; Bull, iv, Dept. Agric. 1884- 

 p. 28; Saunders, Ins. injurious to fruits p. 375, 1883. 



Expands 14-16 mm. General color and appearance of Acrobasis 

 indigeneUa ZelL, but a somewhat smaller species with primaries 

 usually narrower. It may be distinguished by the following differ- 

 ences as compared with indigeneUa; colors of a colder gray with 

 less reddish brown or tawny on the inner portions of primaries, and 

 with the pale costal parts nearly pure white, so as to contrast more 

 fully with the dark shades, and to more fully relieve the basal branch 

 of the forked shade on the inner part of the first or basal line, this 

 basal branch being also usually darker than the outer or posterior 

 branch. The triangular costal patch from the basal line is obsolete. 

 The transverse pale lines are less clearly defined, and the terminal is 

 nearer the posterior border of the wing, i. e., the median field is 

 wider. The geminate discal dots are always well separated and the 

 inner one well relieved by the white which extends around it on the 

 darker ground and often forms an annulus. The oblique shade from 

 apex is less clearly defined. 



Egg. — About 0.4 mm. long and 0.3 mm. broad ; ovate or almost circular, and 

 flattened or plano-convex, the form varying with the surface of attachment, to 

 which, while plastic, it partly conforms. Color olive green or brown. 



Larva. — Average length when full grown 10 mm. Convex above, flattened 

 beneath. Surface of body minutely granulate, with a dull, somewhat greasy 

 appearance. Color varying from greenish yellow to olive-green, reddish or 

 brownish, being generally darkest towards the anal end. Head yellow, polished, 

 somewhat lighter towards the mouth, with the sutures of the clypeus slightly 

 brown, and the anterior angles of the head distinctly so; labrum, antennse and 



