SOME AMERICAN GEOMETRID MOTHS — CAPPS 125 



Barnes and McDunnough dissected a male paratype of turbataria 

 and commented on the possible unreliability of the genitalic char- 

 acters used for separating it from fiscellaria. I have dissected the 

 type, and the genitalia as compared with those of the paratype are 

 as follows: Furca longer, slightly stouter, with the spinules more 

 numerous, extending to base; anellus more scobinate; aedeagus, with a 

 large patch of cornuti (deciduous). On the basis of the genitalia the 

 type is inseparable from examples of fiscellaria. 



There are specimens from Michigan, Massachusetts, Nebraska, and 

 New York agreeing in habitus and maculation with typical turbataria 

 from Pennsylvania. From Connecticut there are examples which in- 

 tergrade between the so-called turbataria and typical fiscellaria. The 

 name turbataria, I believe, represents nothing more than a color form ; 

 certainly it cannot designate any local race. The course of the pos- 

 terior transverse line of the wing is not constant in a series. 



3. LAMBDINA FISCELLARIA SOMNIARIA (Hulst) 



Ellopia somniaria Hulst, Eat. Amer., vol. 1, p. 208, 1886. — Barnes and McDun- 

 nough, Check list of the Lepidoptera of Boreal America, No. 4657, 1917. — 

 McDunnough, Check list of the Lepidoptera of Canada and the United 

 States of America (Part 1, Macrolepidoptera), No. 5147, 1938. 



Therina fervidaria somniaria (Hulst) Hulst, U. S. Nat. Mus. Bull. 52, p. 334, 

 1903. 



Male. — Similar to fiscellaria but specimens of somniaria averaging 

 larger, slightly darker ocherous, more heavily dusted with fuscous, 

 and with the transverse lines more distinct. 



Alar expanse, 28-48 mm. 



Genitalia like those of fiscellaria. 



Female. — Similar to male in color and markings. 



Alar expanse, 32-40 mm. 



Genitalia like those of fiscellaria. 



Type. — In Rutgers College collection. 



Type localities. — Oregon, "Washington Territory," and Vancouver 

 Island. 



Food plant. — Quercus. 



Distribution. — United States: California. Oregon (Aug., Sept.), 

 Washington (Aug., Sept.). Canada: British Columbia (Aug., 

 Sept.), Vancouver Island. 



One hundred and twenty-five specimens examined. 



Remarks. — On the average, specimens of somniaria are larger, a 

 slightly ocherous with the dusting of fuscous more intense and with 

 the transverse lines more distinct than in specimens of typical fiscel- 

 laria. The tendency of somniaria to be more uniform in size, color, 

 and maculation is probably due to the fact that most of the material 

 originated in a somewhat restricted area (northwestern United 



