184 GROTE & ROBINSON. 



Although Dr. Packard's description (1. c.) of the female of this spe- 

 cies offers certain differences when compared with our material, yet a 

 comparison with the ty) e of Lochmaetis tessella, Pack., in the Coll. of 

 this Society shows our determination to be correct. The ground color 

 of the upper surface of the fore wings should not be characterized as 

 "pale whitish-ashen,'' since it is tinged with olivaceous, of which lat- 

 ter shade no mention is made in the original description. Perhaps it 

 is as well to mention, that Dr. Packard himself did not recognize our 

 present material as belonging to a species that had been already de- 

 scribed by him, while our examination of the before-mentioned typical 

 ( 9 ) specimen has not allowed us to benefit by the circumstance, al- 

 though the discordant diagnosis might have additionally excused us 

 for so doing, 



Heterocampa elongata, n. s. (Tlate. 4, fig. 30, J.) 



9 . Head and appendages, dull pale cinereous. Antennae, simple, 

 moderate, testaceous, clothed with pale scales at base above. Protho- 

 rax, patagia and thoracic disc, concolorous, pale bluish-green, with au 

 admixture of whitish and dark underlying scales. Sides of the pata- 

 gia edged with brown scales from beneath. A faint, linear, prothora- 

 cic darker shade ; patagia with a similar faint shade edging these with- 

 in. Metathoracic hairs largely mixed with dark scales. Abdomen, 

 rather pale cinereous; basal segment tipped dorsally with dark scales. 

 Beneath, the legs and body parts are pale dull cinereous; tarsi and ti- 

 biae, annulated and barred with black outwardly, as in II. tessella. 



Primaries, cinereous, sprinkled with au admixture of dark scales in 

 the ground color of the wings, and shaded centrally and terminally with 

 olivaceous. A reduced basal space, concolorous with thorax above. A 

 geminate basal half-line resting on a narrow, longitudinal, furcate, black 

 line, running outwardly and downwardly over the sub-basal space. 

 This latter wide and dark, being closely sprinkled with darker scales 

 on an obscure ground. Transverse anterior line, black, distinct, gemi- 

 nate, irregularly dentate. Median space shaded with olivaceous or 

 dull vellowish-grcen. A black discal streak, succeeded by a faint pust- 

 niedian blackish shade. Transverse posterior line, black, interrupted, 

 geminate, regularly lunulate between the nervules, the enclosed spaces 

 whitish. Nervules interruptedly marked with blackish. A blackish, 

 subterniinal shade, dentate and more strongly marked before internal 

 angle, much as in H. tessella, but more powdery. A terminal black- 

 ish line ; fringes, concolorous with the wing, with black scales at the 

 extremity of the nervules. Secondaries, smoky grey. A median, lu- 



