31 



GEOMETRIDAE 



HvDRioMEXA (.osTii'UNCTATA sp. iiov. (Plate IT, iig. 14.) 



Palpi long, deep brown ; head and thorax pale green ; primaries pale green 

 mottled and spotted with deep purple-brown ; equidistant along the costa from 

 base to apex are seven irregularly quadrate deep brown spots, the first being 

 directly at the base and the seventh at the apex ; spot i is continued across wing 

 almost to inner margin by a dark brown narrow band ; in the cell beyond spot 



2 and not joined to same is a small brown spot connected by a narrow line 

 with a large triangular spot below it on inner margin ; beyond this and discon- 

 nected with spot 3 is a curved brown band broadening to an elongate patch on 

 inner margin ; spot 4 is continued across wing by a narrow brown bisinuate 

 line, forming a small patch on inner margin ; spot 5 is also continued by a 

 brown Hue which is not sinuate but irregularly crenulatc and fairly straight in 

 general course; the area between lines 4 and 5 is largely filled with diffuse 

 purple brown shading, leaving a large green patch at costa, another between 

 veins 2 and 3 and a third on inner margin ; below spots 6 and 7 is a large ir- 

 regular purple-brown patch with slightly darker edges, followed between veins 



3 and 4 by a whitish suffusion which is connected with the inner margin by a 

 band of purple-brown with crenulate edges ; terminal area green, veins slightly 

 marked in purple-brown, crossed by a broken terminal dark line forming at 

 vein 2 a slight patch ; fringes pale cut by purple-brown opposite veins. Secon- 

 daries smoky with pale fringes and faint median and subterminal lines. Be- 

 neath primaries as above but paler ; secondaries whitish, sprinkled with brown, 

 and with distinct brown median and submarginal bands. Expanse $ , ^2 nun. ; 



9 , i7 min. 



Habitat: — Tucson, Ariz. ; Rcdiiigton, Ariz. (M. Chrisman). i $, 

 I ? . Types, Coll. Barnes. 



The $ is very rubbed, but agrees in niaculation with the 9 which 

 is in good condition. The species may be distinguished from spcc'wsata 

 Pack, by the purple-brown shading between bands 4 and 5 and the 

 lack of the white median shading; from nia(/nificata Taylor, of which 

 the type is before us, it is at once separated by the purple-brown apical 

 spot ; the apex in magnificata is broadly green. None of Druce's 

 figures in the Pjiologia are sufficiently close to our species to warrant 

 the supposition that we are dealing with a Mexican form. 



Stamnodes top\zat.\ ai.uida subsp. nov. ( Plate II, fig. 24.) 



Similar to toj>azata in markings but the ground color is pale oclireous in- 

 stead of orange. 



Habitat: — Mt. Rainier, W^ash. (6000 ft.) (July), i i. Type, 

 Coll. Barnes. 



