l8 ENTOMOLOGICAL NEWS [Jan., 'l2 



Grammataulius bettenii, n. sp. (PI. III). 



Ocraceous, with brighter colored hairs, and dark markings. Head, 

 yellowish, hairy. Antennae, testaceous, with short, black appressed 

 hairs; underside of basal joint clothed with longer black hairs, and a 

 thin tuft of black hair under each antenna; basal joint about twice as 

 long as wide. Palpi yellow. Thorax with hairy yellow band divided 

 by a naked medial line, and having a triangular, black pilose patch on 

 either side. Legs yellowish, with black spines. Abdomen yellowish, 

 sparsely provided with short, pale hairs ; sometimes of a grayish hue. 

 A dorsal view, with folded wings showing an extremely long and 

 narrow isosceles triangle with its point half-way back along the wings. 

 It is formed by the dark edge of one wing which folds slightly 

 over the other, for a part of the distance. 



Anterior wing narrow, obliquely truncate, inner margin concave. 

 Yellowish hyaline, marked with brown and scantily clothed with pale 

 yellow hairs, Vandyke brown streak through center of wing, extend- 

 ing through thyridial area and the fourth apical cell. Other dark 

 streaks consisting of irregular patches of color, occupy discoidal and 

 thyridial cells, and many scattered irregular spots are distributed 

 promiscuously throughout interneural areas. Venation pale. Solid 

 streak of Vandyke brown extending from near arculus to the anal angle, 

 with brown irrorations beneath. Costal area immaculate except for a 

 faint irregular cloudiness near the base. Thyridium and arculus hya- 

 line. Pterostigma absent. Discoidal cell slightly longer than its pedicel 

 and very narrow. 



Posterior wings slightly shorter than the anterior, but at least twice 

 as wide toward the base, hyaline, the apical portion scantily clothed 

 with short pale hairs. Venation light yellow. No markings except 

 the very characteristic brown streak between and partly within the 

 third and fourth apical cells. It covers the vein until near the end, 

 when it curves upward, and the vein downward. Scanty long hairs 

 near attachment of wing, extending along the two lowest veins and 

 the margin. 



Length of body, from 13 to 17 mm. Alar expanse, 41 mm. 

 Case: Composed of bits of straw arranged longitudinally in such a 

 manner as to form a cylinder. The straws usually, though not always, 

 form a spiral having \y 2 to 5 or 6 turns. Occasionally, the straws are 

 cut as long as the entire case, which then has no spiral effect.. In this 

 instance, no indication is given of the earlier stage of the case, aivl I 

 suspect this occurs only when the larva has been deprived when nearly 

 grown, of its case, and has then made it to suit its own size and has 

 not had to enlarge it subsequently. Sometimes the narrow blades of a 

 sort of watergrass are fastened together to make what appears to be 



