AMERICAN LEPIDOPTERA. 263 



12. NYCTEROSEA n. geu. 

 Type brunneipennis Hulst. 



Palpi moderately long, porrect or drooping ; antennae simple, with 

 fascicles of hairs two on each segment. Abdomen with segments 

 tufted. Legs rather long, hind tibia) with two pairs of spurs ; fore 

 wings 12 veins, two accessory cells, 6 short stemmed with 7 ; hind 

 wings small, 8 veins, cell rather short, 3 and 4 stemmed, 6 and 7 

 stemmed, 8 with cell nearly its whole length. 

 Species. — iV. bruniieipennis Hulst, n. sp. 



]V. briiniieipennis n. sp. — Expands 27 mm. Palpi, head and antennse 

 fuscous ; thorax and abdomen ochreous fuscous, the ochreous tint more decided 

 on tlie abdomen ; fore wings ochreous brown crossed by a number of mostly sub- 

 parallel wavy cross-lines; two of these are near the base, another about one-third 

 out. and following this on middle field two separate at costa and narrowing 

 towards inner margin, whose undulations are opposite to each other ; these inclcse 

 a blackish spot irregular in outline, extending from costa to below submedian 

 vein, and again appears in a rounded blackish spot near inner margin ; after two 

 faint scalloped lines is one darker, more sharply outlined, the line being more 

 emphasized below middle, and there at veins 3, 4 and 5 followed by faint whitish 

 spots; the brown of the wings is also more decided in this part of the wings; 

 faint marginal shadings with a blackish subapical cloud running inwardly and 

 posteriorly, this having on its outer margin two or three faint whitish spots ; 

 hind wings concolorous with fore wings, but lighter anteriorly and basally, with 

 two faint blackish middle cross-lines: another still further out edged with whitish, 

 and a row of faint whitish spots in the brownish subniarginal space; a marginal 

 broken black line on all wings; beneath very much as above, but the central 

 cloud of fore wings wanting and the cross-lines more indistinct or lost altogether, 

 except the outer central one on both wings. 



One S , Alameda County, California. By Dr. C. V. Riley from 

 the U. S. Museum collection. 



13. CHLOROCXYSTIS Hub. 

 Verz. 323, 1818. 



Type coronatti Hiih. 



Palpi moderate, porrect ; tongue developed ; front with short tuft 

 of scales ; antennse of % filiform, ciliate ; thorax smooth. Abdo- 

 men with tuft dorsally on each segment ; hind tibije with two pairs 

 of spurs; fore wings one accessory cell, 12 veins, 11 anastomosing 

 with 12 ; hind wings 6 and 7 stemmed, 8 with cell to beyond middle. 



Differs from Tephroclydu (EupUhecia) in that vein 11 of fore 

 wings coalesces with 12. 



Species. — C. mconqncua Hulst, n. sp. 



TRANS. AM. KNT. SOC. XXIII. JULY, 1896. 



