816 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



Smith, and I provisionally regard them as representing one species. 

 Unfortunately, in my specimens, identified as ■rectilinea^ there is but 

 one male, and that without antcnnte; neither have I an}' male in the 

 Kaslo catch, nor has Mr. Cockle one in his collection. Till the con- 

 trary is shown it is fair to assume that all have long pectinations, and 

 this will ditferentiate them from the European rectil'mea Esper, in 

 which the pectinations are much shorter than in xylhioides. In all, the 

 patagia are solidly blackish brown without the central lighter bar of 

 ieyJinoldes. 



The larvte are very dark in color, though marked with the same 

 pattern as xyllnoldes. 



Egg. — Shape of two-thirds of a sphere, the base flattened. Ribs 

 about 40, diminishing by confluence, confused into coarse quadrangu- 

 lar reticulations on the summit, the micropylar rosette of cells raised. 

 The ribs have sharp angular summits, the cross strije are fine, yet 

 distinct, forming cells twice as wide as long. Pale yellow; diameter, 

 0.8 mm. Laid singly. 



Stage I. — Head and cervical shield brown black; thoracic feet, the 

 Small round tubercles and leg shields also ])lack. Body whitish, later 

 with a brown stripe between tubercles iii and iv. Seta? short, dark. 



Stage II. — Head luteous, brown dotted at the vertex; width, 0.7 mm. 

 Body moderate, joint 12 enlarged, whitish green, dorsal and subdorsal 

 lines white, a broad lateral brown stripe. Tubercles black, moderate; 

 no shields; feet pale. 



Stage III. — Head 1.3 mm. Like stage iv of xylmoides., but the 

 dorsal ground pale ocherous greenish, while the lattice marking 

 appears rather as oblique streaks dorsally posteriorly to subdorsally 

 anteriorly, the anterior bars of the lattice being weak. Dorsal and 

 subdorsal lines white dotted, stigmatal l)and pale the whole length, Imt 

 white only at the ends. Lateral region nearly solidly dark. 



Stage IV. — Head shining dull sordid, the brown marks hardly 

 legible; a light side stripe; width, 1.9 mm. Joint 12 angidarl}' 

 enlarged; dorsum ])rownish white, ])rown strigose with oblique shades 

 from the posterior dorsal part of the segments, ol)scure, gathering 

 more solidly forward and downward to cut the pale subdorsal line, 

 which is finel}' dotted. Dorsal line white dotted, dark edged. Sides 

 more heavily strigose, especiall}' })elow; a waved brown line above 

 the pale stigmatal space, shading to white on joints 2-3 and 12-13. 

 All Ijelow the lateral region white dotted, the lower lateral and sub- 

 ventral ground purplish brown. Feet with dark plates. 



Stage Y. — Head, 2.2 mm. Very black, nearly all the marks obscured 

 by dull black, all white dotted. Dorsal and suljdorsal lines, narrow 

 rows of white dots, the yellowish ground showing in oblique strigose 

 patches in the dorsal space. The stigmatal line shows yellowish at 

 the ends, dotted; also the color is black to the feet; claspers pale. 



Stage VI. — Head, 2.0 mm. As in the previous stage. 



