608 PROCEEDIXGS OF TEE XATIOXAL MUSEUM. vol.48. 



abdominal appendages. If he is right in his determination, diceras 

 can not be confused with any of the species I have before me because 

 of the form of the appendages, which, in diceras, have the superiors 

 large and robust in profile view, with the inferiors of apparently 

 simple form and only about half as long as the superiors. De Selys 

 describes diceras as having the mesothoracic horns slender and 

 rather long. I am doubtful if this agrees well with Calvert's male. 

 However, so far as the material before me goes, none of the species 

 agrees with De Selys's description of the color of the head or the pro- 

 portions of the anterior and posterior sides of the quadrangle. 



JLf. bicornis was described by De Selys from a single female from 

 the Amazon, has been recorded from Colombia by Brauer (1900), 

 and described from an incomplete male, lacking the last 4 segments, 

 by Calvert. 1 As Calvert points out, De Selys's description of the 

 proportion of the anterior to the posterior side of the quadrangle in the 

 front wing is undoubtedly a misprint, and should be 2:5, not 2:3. 

 The color of the head of bicornis differs from any material before 

 me. It is not impossible that the type female in De Selys's collection 

 will prove unidentifiable through inability to associate it certainly 

 with the proper male of any one of possibly two or more closely 

 related species. 



It. qjiadricornis was described by De Selys from a single female 

 from Para. In this species there are nearly equal, rather short, 

 conical horns on both the prothorax and mesothorax. The dorsum of 

 the head is black. 



31. cornicauda was described by Calvert 2 from a single male from 

 Bahia, Brazil. It has no thoracic horns, and the superior appendages 

 are robust, with the inferiors about one-third as long and of simple 

 form. It is related to macilenta, according to Calvert, who regards 

 macilenta as probably belonging to Metaleptobasis. Macilenta is 

 known only from Rambur's type, a male in De Selys's collection. 



2. TWO SPECIES OF PALAEMNEMA FEOM GUATEMALA. 



In material collected by myself in Guatemala in 1909 are 27 males 3 

 and 2 females of Palazmnema paulina (Drury), all taken at El Fiscal, 

 Department Guatemala, June 3-6, except one male taken at Agua 

 Caliente, a few miles below El Fiscal toward Puerto Barrios. (Agua 

 Caliente of mv itinerarv of 1905 in Guatemala is a small village at 

 some distance from the river; Agua Caliente, as now designated on 

 the railroad from Puerto Barrios to Guatemala City, is a station, 

 marked by a single building, situated on the right bank of the river, at 

 the end of the railroad bridge, and possibly a mile distant from the 



1 Ann. Carnegie Mus., vol. 6, No. 1, 1909, p. 198. 



2 Idem, pp. 199-2 X). 



3 One of these males, collected on June 6, 1909, at El Fiscal, Department Guatemala, is in the United 

 States National Museum collection. 



