378 Rev. F. D. Morice and J. H. Durrant on the 



T}'pe2: Tenthredo pratensisL. ( = pec^es/r/sPzr. 82-11 ; Rwr. 1911), 



* DOLERUS Pzr. Fn. Ins. Germ. 82-11 (VII. 1801); Rwr. Ent. 

 News. 22. 219 (1911)— [Type : pratensis L. ( = pedestris Tzr.). 



Latreille, in 1810, cited gonager Jrn. as the Type of 

 Dolerus Jrn., and Rohwer accepted this species as the 

 Type of Dolerus Pzr. (Krit. Rev., 1806) in his Genotypes of 

 the Sawflies (1911); later in the same year, however, Mr. 

 Rohwer (Ent. News 22. 219) traced the genus back to 1801 

 (Panzer, Fn. Ins. Germ.) and designated pratensis L. 

 {= pedestris Pzr. 82-11) as the Type. Jahrgang 7 of the 

 Fauna Ins. Germ, is dated 3 September, 1801, but we now 

 know that Dolerus Jurine was first pubhshed in the 

 Erlangen List, 30 May 1801. Latreille's citation of 

 Tenthredo gonagra F. will therefore remain valid. 



5. 

 1-5. Nematus Jrn. Erl. Litt-Ztg. 1. 163. 

 " Gen. 5 Nematus — Tenthredo capreae, septentrionalis, etc." 



NEMATUS Jrn. (1801) 

 = Croesus Leach (1817). 



Type: Tenthredo septentrionalis L. (Ltr. 1810). 



Nematus Jrn. Erl. Litt-Ztg. 1. 163 no. 5 (30. V. 1801) [1. 

 capreae L., F. ; 2. septentrionalis L.]; Pzr. Fn. Ins. Germ. [82*10 

 (VII. 1801)]: 90-10-11 (1804): Krit. Rev. Ins. Deutsch. 2. 10, 15, 

 44-6 (1806) ; Jrn. Noiiv. Meth. Hym. 59-60 no. 5 Pf. 2-5, 6-5 (1807) ; 

 F-G. K. & K. MT. Schweiz. Ent. Ges. 6. 390 (1882); Ltr. Cons. 

 G6n. Crust-Ins. 294, 435 no. 384 (1810)— [Type: septentrionalis F., 

 Jrn.]; Rwr. US. Dp. Agr. (Ent.) Tech. Ser.' 20. 84. 97. 99 (1911). 



[nee * Nematus (Pzr.) Rwr. Ent. News 22. 219 {1911)— htcida 

 Pzr. (HOLCOCNEME Knw.)]. 



Latreille cited septentrionalis L. as the Type of Nematus. 

 This is a well-identified species, and being one of the 

 original types of the Erlangen List should be accepted. 



Rohwer [US. Dp. Agr. (Ent.) Tech. Ser. 20. 84, 97, 99 

 (1911)] adopted Latreille's designation of septentrionalis L. 

 as the Type of Nematus Pzr., but later [Ent. News 22. 219 

 (1911)] retracts this and makes Tenthredo lucida Pzr. 

 [Fn. Ins. Germ. 82-10 (VII. 1801)] the Type of the " mono- 

 basic " genus Nematus Pzr., sinking accordingly Holcocneme 

 Knw. (whose Type crassa Fallen is congeneric with lucida 

 Pzr.) as = Nematus Pzr., but this figure was pubhshed 

 subsequently to the appearance of the Erlangen List 

 (30. V. 1801), and lucida is not one of Jurine's original types 



