BAGWORM MOTHS OF THE WESTERN HEMISPHERE 115 



Oiketicus townsendi deudrokouios Jones, new combination 



Figures 104, 105, 306; Map 10 



Oiketicus dendrokofnos Jones, Trans. Amer. Ent. Soc, vol. 52, p. 2, pi. 1, 1926a. — 

 Jones and Parks, Tex. Agric. Exp. Sta. Bull. 382, p. 22, figs. 15, 18, 

 1928.— Dalla Torre and Strand, Lep. Cat., pars 34, p. 193, 1929.— 

 Gaede in Seitz, Macrolep. World, vol. 6, p. 1185, pi. 169e, 1936.— 

 McDunnough, Check List Lep. Canada and USA, pt. 2, no. 9516, 1939. 



Male. — Body and legs as in 0. t. townsendi. Antennae usually with 

 39-42 segments. Wings similar to those of 0. t. tmvnsendi except in 

 size and venational differences; M2 and 3 of both wings usually separate 

 or connate, seldom stalked. Secondaries with cell Ri usually sessile; 

 outer radial crossvein usually arising slightly below or from apex of 

 cell. Wing expanse 35-49 mm. (x=43.3 mm.; n=44).* 



Male genitalia. — 'As described for 0. t. toivnsendi, but relatively 

 larger. 



Female. — Length approximately 40 mm. As described for genus. 



Female genitalia. — (Fig. 306.) 



Case. — (Figs. 104, 105.) Length 75-115 mm.; greatest diameter 

 13-18 mm. Exterior of case heavily covered with series of usually 

 long (10-50 mm.), comparatively large twigs, somewhat loosely 

 attached at upper ends, diverging slightly as they project postcriorally, 

 imparting rather shaggy appearance to bag; case more strongly 

 dimorphic than 0. t. townsendi; posterior fourth to third of male case 

 bare of any ornamentation; that of female heavily covered by sticks 

 throughout. 



Type. — -In tlie United States National Museum. 



Type locality. — Alpine, Brewster County, Texas, altitude 4485 ft. 



Recorded hosts. — "Fabaceae: Robinia sp.; Platanaceae: Platanus 

 sp. ; Tamaricaceae: Tamarix sp. ; Verbenaceae: Aloysia wrightii Heller" 

 (Jones, 1926). 



Distribution. — (Map 10.) Presently restricted to the Great Bend 

 Section of Texas. 



Discussion. — -The taxonomic status of 0. t. dendrokomos is at present 

 very questionable. This insect differs in no appreciable way from the 

 nominate race 0. t. townsendi except size, in which there is a conspicu- 

 ous overlap of intermediates. Eventually, this population may be 

 found to represent a group that is isolated genetically from both 

 0. t. townsendi and 0. t. mexicanus, and thus it would deserve considera- 

 tion as a separate species; or its present position as a race may be 

 considered too extreme and it may be reduced to a synonym of 

 0. townsendi. In the absence of any evidence other than size, 0. t. den- 

 drokomos has been treated in this paper as a subspecies of 0. townsendi. 



*For explanation of symbols, see ftn., p.] 14. 



