die GaUmiicken d. Musewns f. Naturhimde zii Berlin. 333 



much like that oi Asynapta 2^ßctorallS figured by Winnertz; the 

 veiiation, however is similar to that ordiuarily seen in the wing of Di- 

 plosis, but wanting an anterior branch to the third longitudinal vein. 



Sub-genus Chastomera sub-g. n. 

 First longitudinal vein very wide of the costa; second longitudinal 

 vein reaching the margin beyond the apex of the wing; cross vein long, 

 a little oblique, situated a short distance from the tip of the first 

 longitudinal vein; third longitudinal vein with no trace of an anterior 

 branch (PI. II, fig. 11). Antenuae in the Q pedicelled verticilate. 



Chastomera hella. 

 9 Length of antennae 0,070 inch =- 1,77 mm 

 - Expanse of wings 0,140X0,050 inch = 3,55X1,27 mm 

 Size of body 0,130X0,024 inch = 3,30X0,62 mm 



Antennae half as long as the wings, 2 + 14jointed; basal joints light 

 reddish-brown; second base Joint almost globose; flagellar joints niveous 

 almost pyriform, with numerous whorls of hair; the basal whorl much 

 longer than the rest; terminal Joint with a slender projection; pedicels 

 not quite the length of the joints. Hypostoma and front reddish-brown. 

 Palpi long, thickly haired, ochraceous-ferruginous; first Joint twice as 

 long as the second; second and third joints thicker, of äqual length; 

 last Joint slender, one-half longer than the second or third, curved. 

 Thorax reddish-ochraceous, nitidous; two rows of white hairs fi'om the 

 collar to the scutellum; a few long erect white hairs in front of the 

 wings; scutellum prominent, rounded-oblong, with a greyish tint. 

 Poisers niveous, with silvery white hairs; club gradually thickened. 

 Abdomen acuminate nitidous, cretaceous-white, wi^h a silvery white pu- 

 bescence; lamellae small, niveous, with fine silvery white hairs. Legs 

 moderately long, niveous, densely clothed with very long semi-erect 

 silvery white hairs, a sooty-black ring just before the tip of the femora, 

 another at the tip of the tibiae, a third almost covering the first small 

 tarsal Joint, and a broader and paler ring at the tips of the next three 

 following joints. Wings large, very densely covered with somewhat 

 unterwoven hairs surrounded by short dense cilia; hairs and veins ni- 

 veous; the coslal vein with a sooty-black spot just before the joining 

 of the first longitudinal vein, the underlying portion of the first and 

 second longitudinal veins and the whole of cross-vein sooty-black, 

 also a correspondingly broad but lighter spot towards the tip of the 

 third longitudinal vein; surface of wings with a pale bluish reflection, 

 very faint on account of its dense pubescence, First longitudinal vein 

 very wide of the margin joining the costa beyond the middle; second 



