84 THE ENTOMOLOGIST. 



Lithosia complana (Fig. 2). — The harpe is rounded; the clasper 

 is broad for three quarter parts, then narrowed off to a chitinous 

 point. The uncus is parallel, and the juxta is fairly wide with 

 two acute angles on the upper surface, one at each corner. 



Lithosia sericea (Fig. 3). — The harpe is rounded, the clasper 

 is broad for three quarter parts, then narrowed off to a chitinous 

 point. The uncus is parallel ; the juxta is a little narrower, with 

 two acute angles on the upper surface, one at each corner, 

 smaller than in the preceding species. 



Lithosia pyginceola (Fig. 4). — The harpe is rounded; the 

 clasper is broad for three-quarter parts, then narrowed off to a 

 chitinous point. The uncus is parallel, much broader than pre- 

 ceding species. The juxta has the two acute angles similar to 

 the above species, but again smaller. With the exception of 

 pyginceola being smaller than sericea, and the latter smaller than 

 complana, these three species are so closely similar that I do not 

 think I could tell the species by examination of the genitalia 

 alone, without comparison in size. 



Lithosia caniola (Fig. 5).— The harpe rounded; the clasper 

 broad for three-quarter parts, then narrowed to a chitinous 

 point ; the uncus slightly thickened in the middle. The juxta is 

 broad and curved, highest in the centre, gradually narrowing off 

 and giving the appearance of steps. 



Lithosia quadra (Fig. '6). — Harpe rounded and indented at the 

 apex ; the clasper sharply broadened out for one-third, where 

 there is a little knot of spines, then as suddenly narrows into the 

 chitinous point. The uncus strong, slightly narrower at the base. 

 The juxta I have been unable to quite make out, but it appears 

 to be bent over and divided into two round lobes. 



Lithosia aureola (Fig. 7). — The harpe rounded; the clasper 

 broad at the base for about a half, when it narrows off to the 

 chitinous point, which is file-like for a small portion of the tip. 

 The uncus is long and tapered. The juxta is bifurcated and 

 lobed, the lobes being furnished with file-like teeth. 



Lithosia complanula (Fig. 8). — The harpe is rounded ; the 

 clasper broad for about one-third, when there is a little knot of 

 short file-like teeth, and just beyond narrows to the chitinous 

 point, which is clothed with the file-like teeth ; the uncus long 

 and parallel, and the juxta is squarely angulated with acute 

 angles. 



Lithosia muscerda (Fig. 9). — The harpe is bluntly pointed 

 with a projecting blunt tooth on the lower apex ; the clasper 

 broadens out for a little over a third, when it becomes clothed 

 with the file-like teeth and narrows off to a point. The uncus 

 is long and slender, but not acutely tapered until near the tip ; 

 the juxta is rounded. 



Lithosia hclveola (Fig. 10). — The harpe rounded ; the clasper 

 is parallel for three quarter parts, when it narrows, then widens 



