30 LEPWOPTERA. 



known to me is of a single specimen on the Pembrokeshire 

 coast ; and I find no record in Scotland or Ireland. Abroad 

 it is found over the greater portion of Central Europe, Italy, 

 South Sweden, Livonia, Northern Turkey, Southern Eussia, 

 and some parts of Asia Minor. 



Genus 38. DIPTERYGIA. 



Antenna? short, naked ; eyes naked, but with lashes at the 

 back ; thorax very strongly crested at the back ; abdomen 

 with three or four small crests ; fore wings broad with the 

 hind margin expanded but deeply emarginate just above the 

 anal angle ; hind wings broad, vein 5-curved, arising below 

 the middle of the cross-bar. 



We have but one species. 



1. D. pinastri, L. ; scabriuscula, Siavd. Cat. — Expanse 

 11 inch. Fore wings black with a brown mark like the 

 extended wing of a bird at the anal angle; hind wings smoky- 

 brown. 



Antenna? of the male thick, naked, dark brown with a 

 metallic gloss at the back, light brown in front ; palpi thick, 

 moderately tufted, black-brown, third joint short, porrected, 

 tipped with white ; head densely covered with black-brown 

 scales and with a small tuft at the base of each antenna ; 

 collar black-brown, black at the margin; shoulder lappets 

 also black, but edged with whitish-brown ; rest of thorax 

 pale purplish-brown and strongly contrasted, also triply 

 crested, the top crest deeply divided, a smaller pair of tufts 

 close behind, and the back crest closed together in a dense 

 tuft, all three dusted and tipped with darker brown ; fascicles 

 brownish-white ; abdomen dull ashy-brown, embellished with 

 six dorsal crests, the third considerably the largest, and all 

 tipped with dark purple-brown ; lateral and anal tufts small. 

 Fore wings very broad and blunt ; costa shghtly arched ; apex 

 bluntly rounded; hind margin nearly perpendicular, crenu- 

 lated and very full, but below the middle bent, and the 



