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oval linear, sometimes conical. It is generally set on the end of the 

 secfind member, but in some cases in front, and in one species does not 

 reach as high as the summit of the second member. 

 MAXILLARY PALPL 

 These show a remarkable, and, if we except some Phycitidae, a unique 

 characteristic. The maxillary palpi are present in all species we have 

 examined, though in the S3nopsis hereafter given we speak of them as 

 being invisible in some species. They are in these entirely beyond ob- 

 servation except under the most careful preparation of the head parts, 

 and then only under a power of at least 20 to 30 diameters. But in all 

 cases the characteristic is the same. The end member is not on the 

 summit of the member next below, but is set upon it nearly at its ba^e, 

 sometimes seeming to be directly from the same stem. All sxstematisis 

 have noticed the bi tufted maxillary palpi, but none seem to have noticed 

 that it was accompanied with a remarkable modification of the organ 

 itself. 



EYES. 



The eyes are surrounded with a fringing of short hairs. 

 ANTENN/E. 



The antennae are in no respects strongly peculiar, except in the 

 presence of the basal membraneous process. They are doubly bitufted 

 pubescent on the basal and middle segments, and simply pubescent to- 

 wards the end. In one species each segment, basally and medianly, 

 seems to be doubly tritufted. The tuftings are on the posterior side, 

 and are shorter in the female. In all cases the antennas are scaled in 

 front. 



The process is subject to great variation in shape, as will be seen 

 from the figures. 



THORAX and ABDOMEN. 



There is, so far as we have noticeti, no peculiarity about the thorax 

 or abdomen, except in one species ; in that the abdomen is tufted 

 laterally on the penultimate and antipenultimaie members much after the 

 manner of Sawea, Guen. The genitalia differ in some respects in the 

 direction of the furcate basal part of the uncus, and in the lateral spines. 



WINGS. 

 There are some remarkable peculiarities in the wings. In some of 

 the species the wings are simple and correspond in both sexes, in 

 others there are modifications of a sexual character which, taken as a 

 whole, are extraordinary, and, so far as we are aware, unique. In the 

 females the wings are simple, and follow the normal struciure. In the 

 males there is a costal fold of lony; scales rantred transverselv beneath 



