THE CANADIAN ENTOMOLOGIST. 119 



NOTES ON TENTHREDINOIDEA, WITH DESCRIPTIONS OF 



NEW SPECIES.* 



BY S. A. ROHWER, WASHINGTON, D. C. 



Paper XIII, Miscellaneous Notes. 

 The Common Pear Slug. 

 After repeated requests for information concerning the synonymy or 

 correct name of the common pear slug, it has been deemed advisable to 

 publish certain remarks on this species. According to Rev. Herr F. W. 

 Konow's classification (a) this species belongs to the genus Eriocampoides 

 Konovv. Dr. A. D. ]\IacGillivray (b) places Eriocat?ipoides Konovv as a 

 synonym of Caliroa Costa, dividing Konow's genus into Efidelomyia 

 Ashmead and Caliroa Costa. In this the use of names is wrong. 

 Konow's genus, as defined by him, may be divided into two subgenera, as 

 follows : (c) 



Clypeus truncate ; pedicellum shorter than the scape ; hind wings of the 

 female usually with only one 

 discal cell Caliroa Costa, syn. Ejidelojuyia Ashmead. 



Clypeus emarginate ; pedicellum subequal in length with the scape ; hind 

 wings of the female usually with only one 

 discal cell Eriocampoides Konow. 



As these characters are hardly of generic importance, the above two 

 groups should be treated as subgenera. 



Linnaeus (d) describes a sawfly under the name Tenthredo cerasi as 

 follows : 



" Cerasi. 14. T. antennis septemnodiis, corpore nigro, pedibus luteis. 



'" Reaiim. ins. 5, t. 12, f. 1-5. 



'• Habitat in Cerasi foli is, qucE involvit nt niutetury 



"Papers IX, X, XI, XII and the present one may be considered as contribu- 

 tions from the Division of Forest Insects, Bureau of Entomolog-y, U. S. Depart- 

 ment of Ag-riculture. In paper XII, Vol. 42, July, 1910, p. 242, it was stated that 

 a paper on the subgenus Hoplocampa would be used as paper XIII. When the 

 paper was completed it was found that it could be published in a series of 

 technical papers of the Bureau of Entomology, and will appear as such. 



(a) Genera Insect, fas. 29, 1906, p. 74. 



(b) Can. Ent., \'o1. 39, Oct., 1909, p. 346 and 347. 



(c) The matter of generic synonymy is treated more fully in a paper to be 

 published shortly by the Bureau of Entomology. 



(d) System. Xat. Ed. loa I, 1758, p. 557, n. 14. 

 April, 1911 



