AMERICAN LEPIDOPTERA. 241 



XAXTHOTH RIX, Hy. Edw. 



Cal. Ac. Sei., July. 1878. 



Eyes naked, slightly constricted, small ; head small, retracted, clothed 

 with thin divergent vestiture ; palpi very short, not exceeding front ; 

 heavily and lengthily fringed beneath; terminal joint sub-obsolete; 

 tongue moderate ; clypeus with naked, irregular cup-like depression, at 

 the lower portion of which is a tubercle-like projection varying in length; 

 thorax stout, convex, with fine hairy vestiture ; legs moderate, clothed 

 with fine hair, rather more lengthily in the %> ; tibiae not spinose, ante- 

 rior armed with a single claw at tip ; wings proportionate ; primaries 

 with costal margin somewhat depressed apices slightly produced ; more 

 perceptibly in Neumoegeni ; there are no peculiarities of venation so far 

 as I can discover from my limited material ; £ ovipositor extruded. 



This genus is closely allied to He/iodes, differing only in the form of 

 the clypeal modification, by the presence of a claw on the anterior tibia 

 and the somewhat more produced apex of primaries. 



Mr. Edwards doubted the generic identity of his two species. I fol- 

 lowed suit in my synopsis, and Mr. Grote in his " New Check List," p. 

 37, in note, separates Neumoegeni, creating therefor the genus Eued- 

 wardsia, basing it on the difference in form of the clypeal projection and 

 the more produced apex of primaries. Careful re-examination of the 

 species leads me to believe that they must be retained in the same genus 

 for the present. 



The two species can be readily distinguished as follows : 



Protuberance of clypeus not exceeding front: primaries pale olivaceous; secon- 

 daries smoky black, with few olivaceous scales ranunculi. 



Protuberance exceeding front; wings tawny yellow ; primaries with three very 

 indistinct darker streaks; secondaries with a discal reniform black spot and a 

 narrow dusky outer margin Neumoegeni. 



X. ranunculi, Hy. Edw.. Cal. Ac. Nat. Sci.. July 1, 1878. 

 Expands i inch, 21 millim. 

 Habitat. — Southern California. 



X. \c11111ucgeni. Hy. Edw., Papilio I, p. 101. 

 Expands f inch nearly, lb' millim. Habitat. — California. 

 No figures are given of either of the species as they are unicolored 

 and the tibia has only a single terminal claw. 



HKLIOLOKCUE, Grt. 



Buf. Bui. I, p. 115; Id. II. p. 2l!(>. 



Eyes naked, small and constricted ; head small, retracted ; clypeus 



with a flattened shelf-like projection interiorly ; palpi slightly exceeding 



the projection ; lengthily fringed beneath ; tongue strong ; vestiture of 



TRANS. AMKIi. EST. SOC. X. (lil) KKBRUARV, 1883. 



