156 U.S. NATIONAL MUSEUM BULLETIN 244 



Nota; dedicada a su descubridor Sr. Sergio Yamorkine, agradeciendo multiples 

 atenciones. 



Material examined. — 10 cases: 



Argentina: Misiones, 10 cases, ZSBS. 



Unidentified Larval Cases 



The following six descriptions refer to larval cases that are unnamed 

 and should not be named until adults can be associated with them. 



Case No. 1 



Oiketicus species 



Figure 137 



Oiketicus sp.(?) Jones and Parks, Texas Agric. Exp. Sta. Bull. No. 382, p. 25, 

 fig. 1, 1928. 



Case.— (Fig. 137.) Length 60-90 mm.; greatest diameter 20-30 

 mm. HeavUy covered by cross-thatching of short stout twigs laid 

 mostly transversely around bag. Exterior of case, for most part, 

 rather densely swathed in greyish-white silk. 



Recorded hosts.— Juniperus pachyphloea Torr., Juniperus sp. 



Discussion. — In structure this larval case appears to be distinct 

 from any of the species of Oiketicus previously recorded within the 

 United States. An adult male of this species has been reared, but 

 no positive determination can be made because of the extremely poor 

 condition of the specimen. The genitalia were examined, but these 

 are very similar within this group and thus offer no specific diagnostic 

 characters. In construction the cases are nearly identical with those 

 of 0. kirbyi, and possibly they may represent the northern limits of 

 that widespread insect. 



Material examined. — 1 cf , 8 cases: 



Arizona: Carr Canyon, Huachuca Mts., case, PAS. Continental, case, USNM. 

 Madera Canyon, Santa Rita Mts., 4 cases, USNM; case, 5500-6000 ft., USNM. 

 Manzanita, Santa Rita Mts., cf with case, Jan. 26, 6000 ft., USNM. 



Case No. 2 



Oiketicus species 



Figure 138 



Case. — (Fig. 138.) Length 110 mm.; greatest diameter 35 mm. 

 Bag mostly of a thick, densely wool covering of silk into which woven 

 sparsely scattered fragments of twigs, leaves. Texture of case very 

 spongy because of thick, loose mat of greyish-white silk. 



Recorded hosts.— None. 



