74 THE UNIVERSITY SCIENCE BULLETIN. 



apex; disk outside the first nerve, with three spots in a row, one longish, 

 dull yellow, before the middle, the two others round and whitish, one of 

 them rather beyond the middle, the other opposite the second marginal 

 spot; beyond the first nerve, on the basal half, a long faint ocellus, formed 

 by a narrow, yellowish, oval ring, enclosing a space of the ground color, 

 its basal end being clearer ; in a line with this, near the posterior margin, 

 a long yellow streak (sometimes there is a faint, yellowish, interrupted 

 line more towards the inner margin; and sometimes the whole of the 

 yellowish marks on the corium are of larger size, giving a more speckled 

 appearance) ; membrane yellowish, the suture and nerves black; the first 

 nerve often yellow at its base; between the nerves, beyond the middle, a 

 transverse row of long blackish spots ; nearer the base an irregular black 

 spot in the second, third, and fourth cells (sometimes in the second and 

 third only) ; margin with a long black spot at the end of the first nerve, 

 preceded and followed by a yellow spot; the rest of the margin fuscous- 

 brown, sometimes yellowish internally. Legs pale yellow; thighs with 

 fine, short, yellow hairs on the inner and outer sides, with a row of 

 brown punctures; hinder side of the first and second pairs with a black 

 stripe ; apex narrowly black, preceded by a clear space ; tibias blackish at 

 base and apex, the first and second pairs with a long, subannular, brown 

 spot in the middle; third pair with short, distant, black, spinose hairs; 

 tarsi ; first and second joints black, the second, and sometimes the base of 

 the third, yellow; claws brown." 



"Abdomen, in the female, the last segment beneath, posteriorly pale 

 ochreous. 



"Length, 11/2 -2 lines. 



"Abundant on the margins of ponds and ditches during the summer, 

 and in winter in moss on damp walls, etc." 



Reported from New York and Illinois. 



Parshley adds Massachusetts, Rhode Island and Connecticut. 



Genus MICRACANTHIA Reuter. 



"Body small, rather short. Gula short. Eyes very much exserted, 

 strongly converging anteriorly Ocelli slightly distant. Rostrum nearly 

 reaching apex of posterior coxae. Antennae rather short, second segment 

 scarcely double the length of the first. Apex of pronotum much narrower 

 than the head with the eyes, sides straight or subsinuate before the apex. 

 Callos by no means reaching lateral margins, extending farther behind 

 middle of the disc, margin of base broadly emarginate. Scutellum longer 

 than wide, base entirely visible, impression far remote from base. Hemel- 

 ytra entirely or almost entirely (Humilis Say) opaque or sericeo-nigra, 

 embolium discolored, entirely distinct from corium; veins of corium en- 

 tirely obsolete. Apex usually subacuminato-rotundate; first area or 

 anterior base produced before the proximal area by one-quarter or one- 

 fifth part of its own length. Apex most often distinct, sometimes 

 (Humilis Say) placed very little above apex of proximal area. Third 

 segment of post-tarsi a little longer than second. Type Acanthia margi- 

 nalis Fall." 



Micracanthia humilis Say 1832. 



Acanthia hiniuUs Say, Heteropt. New Harmony, 35, No. 4. 



"Elliptical, black, velvety, above closely invested with minute yellow 

 prostrate pubescence; the eyes very large, prominent, round, brown, 

 placed obliquely. Head at base, with a narrow neck, conforming to the 

 width of the front of pronotum, black, dull, minutely scabrous; the front 

 very narrow between the eyes, from above blunt, short, a little flattened, 

 with two indented points each side and one in the middle; tylus slightly 

 prominent, and together with the labrum, pale ocherous or yellow, the 

 ends of lower cheeks also ocherous. Rostrum reaching upon the pos- 

 terior coxae, pale piceous. Antennae testaceous, slender, and moderately 



