publication of " Jurinean " Genera of Hymenoptera. 423 



the name both to the genus as a whole, and also {sensu 

 stricto) to a section. 



In the Systema Piezatorum Fabricius made use of Jurine's 

 name Lasius, but applied it to a genus of Ants which he 

 separated from Formica L., and later authors have ignored 

 Jurine's Lasius, no doubt because the publication of the 

 Piezatorum (1804) antedates that of the Nouvelle Methode 

 (1807). But the real date of Lasius Jrn,, as we now learn, 

 is May 30, 1801 (Erlangen List)— §i:asms F. (1804) there- 

 fore sinks as a homonym of the earlier Lasius Jrn. 



A new name for ^Lasius F. is necessary, there being, 

 apparently, no existing synonym, we therefore propose 

 that it be called DoNlSTHORPEA in recognition of Mr. H. 

 St. J. K. Donisthorpe's careful investigations into the 

 bionomics of this and other Heterogynous genera. 



DoNiSTHORPEA, nn. 

 Type: Formica nigra L. (= Lasius niger F.). 

 = ^Lasius F. Syst. Piez. pp. xi, 415-8 no. 78 sp. 1-10, Ind. 18 

 (1804); Auctt.— [«ec Lasius Jrn. (1801)]). 



49 

 III-34. Crocisa Jrn. Erl. Litt-Ztg. 1. 164, 

 "Gen. 34 Crocisa— Apis punctata. Nomada scatellata. An- 

 drena armata Panzer." 



CROCISA Jrn. (1801) 



= Thy REVS Pzr. (1806). 



Type 1 : Melecta histrionica Illig. ( = *scutellaris [nee F.] Pzr.; 

 Ltr. 1810 — [ = pcatellata Jrn.]). 



Crocisa Jrn. Erl. Litt-Ztg. 1. 164 no. 34 (30. V. 1801). [1. punc- 

 tata F. {punctata F. 1775, Jrn.; = armata Pzr. 1799. Jrn.); 2. 

 histrionica Illig. { = * scutellaris [nee F.] Pzr.; f scatellata Jrn,)]. 

 Thyreus Pzr. Krit. Rev. Ins. Deutsch. 2. 263-4 (1806)— [Type: 

 histrionica Illig. { = * scutellaris [nee F.] Pzr.)]. Crocisa Jrn. 

 Nouv. Meth. Hym. 239-41 no. 34 Pf, 4-34, 12-34 (1807); F-G. 

 K. & K. MT. Schweiz. Ent. Ges. 6. 397 (1882) ; Ltr. Gn. Crust- 

 Ins. 4. 172 no. 565 (1809) : Cons-Gn. Crust-Ins. 338, 439 no. 532 

 (1810)— [Latreille's generic description excluded punctata F. (the 

 Type of Melecta Ltr.) and consequently restricted CROCISA to 

 histrionica Illig. ( = * scutellaris Pzr.) which thus became the Type — 

 histrionica Illig. is congeneric with histrio F. which was not an 

 original type]. 



[NB. Crocisa histrionica Illiger. — Melecta histrionica Illig. Mag . 

 Ins. 5. 99 sp. 10 (1806). = Nomada *histrio? [necF.) Rossi Fn. 

 Etrusc. 2. 110 sp. 930 (1790). = Nomada *scutellaris {nee F.) Pzr. Fn. 

 Ins. Germ. 32-7 (1796). = Nomada -fscatellata Jrn. Erl. Litt-Ztg. 

 1. 164 no. 34(1801).] 



