174 ENTOMOLOGICAL NEWS. IMay, '07 



batches of eggs laid by a female before death have failed to 

 hatch in several cases, even when a male was kept with the 

 female. I am inclined to conclude, therefore, that failure of 

 eggs to hatch is not necessarily due to sterility, as generally 

 assumed, but may result in some cases from an unfavorable 

 condition of the female. This possibility must therefore be 

 borne in mind in experimental breeding. 



Coleopterological Notes, Synonymical and 

 Descriptive. 



By H. C. Fall. 



Several years ago ( 1901) a supposed new species of Mycctina 

 was described by the writer (Trans. Am. Ent. Soc., XXVII, 

 p. 304) under the name endomychoides. From a reading of 

 Horn's descripoion the form in hand seemed to be distinct 

 from limbata, but subsequent comparison with the type con- 

 vinces me that the two are identical. Endomychoides, there- 

 fore, falls into synonymy. 



A little later, on comparing some specimens collected by 

 Professor Wickham, at Coeur d'Alene, Idaho, and sent me as 

 M. hornii, with California examples of hornii, the two were 

 found to be quite distinct. There can be no doubt that the 

 Californian specimens are the true hornii, the differential char- 

 acters separating this from the Idaho form and the Eastern 

 perpulchra are shown in the following table : ' 



Prothorax wider just before the middle than near the base, the sides dis- 

 tinctly sinuate posteriorly : humeral pale spot subbasal, not in- 

 volving the umbone ; dilation of posterior tibiae of male begin- 

 ning at or a little below the middle perpulchra Newm. 



Prothorax with sides parallel or slightly divergent posteriorly, not evi- 

 dently sinuate before the basal angles : humeral pale spot in- 

 volving the umbones. 

 Form less stout, elytra more finely punctate, size a little smaller ; pos- 

 terior tibiae of male not dilated, but arcuately bent apically. 



hornii Crotch. 



Form stouter, elytra more coarsely punctate, size larger ; posterior 



tibiae of male dilated at apical thifd idahoensis n. sp. 



