144 DESCRIPTIONS OF NEW SPECIES. 



SCRAPTIA LATK. 



On -examining the species of Scraptia in my collection, I find 

 the differences in the maxillary palpi and hind tarsi are such as 

 to indicate three genera, as follows : The last joint of the labial 

 palpi in all three is very transverse, with the apical side longer 

 than the others, and the prosternal sutures are not distinct. 



Last joint of maxillary palpi triangular ; 



Penultimate joint of all the tarsi lobed. SCRAPTIA. 



Penultimate joint of hind tarsi not lobed. ALLOPODA. 



Last joint of maxillary palpi elongate, cultriform. CANIFA. 



To the first genus belongs Orchesia sericea Mels. The an- 

 tennae are about two-thirds as long as the body, not very slender, 

 with the 3d joint but slightly longer than the 2d, and the two 

 united are not longer than the 4th. The last joint of the maxil- 

 lary palpi is large, triangular, about one-half"longer than wide, 

 the outer side broadly curved, the apical and internal sides meet- 

 ing at a right angle, which is quite considerably rounded, the 

 inner or basal side about one-third shorter than the apical. The 

 penultimate joint of all the tarsi is cordate, and somewhat lobed, 

 and the first joint of the hind tarsi is twice as long as the others 

 united in our species, and but little longer than the others united 

 in the European S. fusca. 



To Allopoda belongs Scraptia lutea Hald., which I have, by 

 the confusion of types sent to me, erroneously considered (Proc. 

 Acad. Nat. Sci. VII, 219) as the same with S. pallipes Mels. 

 The antenna are about half as long as the body, the 2d joint 

 half as long as the 3d, which is not shorter than the 4th. The 

 last joint of the maxillary palpi is about one-half longer than 

 wide, subtriangular, with the internal angle more rounded than 

 in the preceding genus, and the tip more acute. The penultimate 

 joint of the front and middle tarsi is cordate, but that of the hind 

 tarsi is slender, not at all dilated, and two-thirds the length of 

 the preceding ; the first joint of the hind tarsi is shorter than the 

 other three united. 



The third genus Canifa contains Scraptia plagiata Mels., S. 

 pusilla Hald., and S. pallipes Mels. The antennae are a little 

 more than half the length of the body ; the 2d and 3d joints are 

 small, equal, and the 3d is as long as both united. The last joint 

 of the maxillary palpi is cultriform, fully twice as long as its 



