PANTYDIA. 129 



yeliuw, with a darker stripe on the dorsal surface. The moth 

 appears in August and September. 



IV. NOCTU^: EXTENSA. 



This Division, like the last, is separated by Guenee into 

 three families of moderate extent ; but they are all unrepre- 

 sented in England. They are briefly tabulated as follows : 



A. Abdomen of the male conical, smooth, or very finely 



crested. Legs long and thick ...... Poly des mi dec. 



B. Abdomen broad, flattened, and strongly crested in both 



sexes. All the wings with similar markings. HomopteridcB. 



C. Abdomen neither flattened, downy, nor crested. Hind- 



wings always more or less differently coloured to the 

 fore-wings, and often marked with -very distinct lines 

 beneath .................. Hypogrammida. 



A representative species of each of these families has been 

 figured, 



FAMILY POLYDESMID^:. 



GENUS PANTYDIA. 

 Pantydia, Gue'nee, Spec. Gen. Le"pid. Noct. ii. p. 436 (1852). 



The antennae are pubescent and crenulated in the male, 

 and simple in the female. The palpi are raised, the second 

 joint scaly, and the third shorter, slender, and filiform. The 

 proboscis is short and slender, and the abdomen is smooth, 

 with parallel sides, and is truncated at the tip in the male, and 

 suddenly pointed in the female. The front legs are very 

 woolly, and the middle tibiae are set with thick tufts of woolly 

 hair. The wings are dull-coloured, the fore-wings with the 

 sub-marginal line well-marked, the hind- wings set with hairs on 

 the disc above, and all the wings bordered with brown below. 

 The three first sub-median nervules rise from the same point, 

 16 K 



