44 ZYG^NIDiE AND BOMBYCIDi?': 



though obtuse. Costa very straight, outer edge very long, remarkably 

 straight, internal angle rectangular, not reaching much beyond the 

 base of the anal tuft. 



" Subcostal divides near the outer fourth of the wing ; first and second 

 median very short, nearly parallel ; third very remote, but of the same 

 length. 



' ' Legs long and slender, finely scaled. Hind tibial spurs very small 

 unequal acute, inner pair very remote, and half as large as the terminal 

 pair. Tip of abdomen provided with large anal valves of unusual size, 

 being laterally broad lanceolate. 



"The squamation is fine and powdery, compared with Lycomorpha, 

 to which it is nearest allied, besides the very different style of coloration, 

 the primaries are narrower, costa straighter, secondaries more triangular, 

 owing to the rectangular inner angle. But in the structure of the head, 

 of the antennae, of the thorax and abdomen, it agrees closely with 

 Lycomorpha, and these characters are those which place it without 

 doubt in the Zygaenidse, though after a casual glance one would not 

 hesitate to call it a Lithosian. The blueish scales of the body, the 

 dark mahogany-colored tegument, the fine pov/dery squamation, and 

 the slender, very equally jointed legs and pectinated antennae aid in 

 determining the true position of this interesting genus. 



" From the resemblance to the parallel genera, Hypoprepia and Atol- 

 mis, among the Lithosiidse I have praposed the name above given. " 



Packard, Proc. Essex Inst, April 1864. 



1-ANATOLmS GROTEI. (Pi. 2, fig. 4.) 



Anatolmis Groiei, Packard, Proc. Essex Inst. (1864.) 

 5 . ? . — Vermillion red and smoky purple. Head and appendages 

 blackish, thorax red. Primaries red throughout, except the fringe and 

 the edge of the outer third of the costa, which area deep smoky purple, 

 nearly black. Secondaries red on the basal third, beyond smoky pur- 

 ple ; the red extends from just within the middle of the inner edge to 

 near the apex upon the costal edge. Legs purple, concolorous with 

 the abdomen. Beneath colored the same as above. There are no 

 other markings on the wings. 



Expanse of wings, 1.30 inches. Length of body, 0.45 inch. 



Habitat.— Co\ov2ido Territory, (Coll. Phil. Ent. Soc, T. L. Mead, 

 H. Edwards, R. H. Stretch.) 



