97 



rum has been overlooked by all authors. It was bred from galls 

 of Qiicrcus patustris, received from U. States, and was described 

 in Proc. Entom. Soc. (2) III., p. 21, 1854, and in the Gardener's 

 Chronicle for 1854, p. 757, with woodcuts. I know that some 

 gall-feeding species have since been described by American au- 

 thors, and I have compared the descriptions without being able to 

 satisfy myself as to their identity. Westwood's description is as 

 follows : 



" ' Exp. al, 8 lin., Long. corp. 5 1. Blue black, with two slen- 

 der, pale yellow, diverging lines on the sides of the thorax above, 

 and with the edges of the tail also pale yellow ; wings transparent 

 except the dark fore margin, a curved bar across the middle, and 

 a pale brown apical border ; legs yellow, with a dark ring around 

 the tibiae near the tips.' " 



SOSPITA QUINQUECAUDATA. Ridings. 



Mr. Kirby also informs me that the above generic name,, 

 which I proposed for the species, is preoccupied. I therefore 

 change it to Phemonoe. 



Trochilium Denudatum. Harris, 



The $ of this species, which appears to have been unknown 

 to Harris, is an insect which doubtless exists in many col- 

 lections, but from its entire want of resemblance to the well- 

 known ?, passes probably under other names. Its color is 

 dull brown ; the abdomen has no trace of bands in the examples 

 before me, though in very fresh specimens there may be narrow 

 yellow margins to the segments. The antennje are long, chest- 

 nut brown in color, very deeply and densely pectinated, more so 

 than in any other species known to me, the pectinations ceasing 

 about 2 mm. from the tip, where the joints are soldered into a 

 serrated point, surmounted by four fine ciliie. The palpi are pale 

 yellow. Legs chestnut brown. The forewings have the margins 

 rather broadly opaque, chestnut brown ; across the cell, and in- 

 cluding the discal spot, is an oblique, sub-opaque band, broadest 

 on costa. The nervules and fringes are chestnut brown. 



Exp. wings, 36 mm. Length of body, 20 mm. 



The sexes were found in coitu by Mr. H. Strecker, who kind- 

 ly furnished me with his notes thereon, so that there can be no 

 mistake in my present determination. I am inclined to think 

 that this is the species described by Boisduval as Scsia asilipciuiis 

 Lep. Heteroc, p. 391. 



Fatua. n. genus. 



The extreme difference between the sexes of the above spe- 

 cies seem to point to a new genus, for which 1 have selected the 

 name of FaTUA. It may be thus characterized : 



Male. — Fore wings long, very much narrowed towards the 

 base, not covered with scales. Hind wings very large, ample, 

 rounded on anal margin. Legs long and slender. Antennai with 

 very deep pectinations, ceasing before the tip, which is a solid 



