publication of " Jurinean " Genera of Hymenoptera. 407 



insecte dans ce genre " — -Jurine clearly indicates that the 

 Type of Alysson Jrn. is spinosus Pzr. ^ {=^ bimaculata 

 Pzr. $). 



Two insects have been described as " Sphex fuscata," 

 viz. Sphex fuscata F. (1793 — a Psammocharid, = rufipes L.) 

 and " Sphex fuscata F.," Pzr. 51-3 (1799). Jurine (Nouv. 

 Meth. Hym. p. 196) shows that he intended the latter — 

 but this * fuscata Pzr., though adopted by Handhrsch, 

 must sink as a homonym erroneous in adoption. In 1798 

 Panzer described as a new species Sphex bimaculata, 

 without reference to Sphex bimaculata Fuessly (1775) — 

 the name § bimaculata Pzr., though employed by most 

 authors, including Curtis who cited it as the Type of 

 Alyson in 1836, must also sink as a homonym and spinosus 

 Pzr. (1801 : Pompilus) should be taken as the name of the 

 species. 



[This Alysson spinosus Pzr. (= Pompilus spinosus Pzr., 

 1801) must not be confounded with the Crabro spinosus F. 

 (1775), which is the Type of our next genus Nysson Jrn.] 



Latreille (Cons. Gen., 1810) includes under Alyson, with 

 fuscata, a further species, viz. lunicornis F. (1798 : Pom- 

 jnlus) — but this is a Didineis. 



[The original spelhng of the name of the genus was 

 Alysson (Erlangen List, 1801), not "f Alyson. In the Nouv. 

 Meth. Hym. the name was altered to Alyson, but need- 

 lessly, not to say incorrectly, for it is evidently formed 

 from dXvooco (to fidget), as the following name " Nysson " 

 from vvooo) (to prick), while "fdXvocov is no Greek word 

 at all. 



It will be seen, from the references given below, that 

 Nysson first appeared (without type) in the form " Nysso " ! 

 — but it is to be hoped that this was a mere misprint, and 

 not a blundering attempt to Latinize the participle vvoocov.] 



37 

 III-22. Nysson Jrn. Erl. Litt-Ztg. 1. 164. 

 " Gen. 22 Nysson— Crabro spinosus : trimaculat. Ross. Mellin. 

 interruptus. Fabr. Pompil. maculatus. Fabr. 



NYSSON Jrn. (1801) 



= -f Nysso Ltr. (1796) MN. 



Type: Sphex spinosus Forst. (1771) F., {=tricinctus F. ; Ltr. 

 1810). 



Nysson Jrn. [^\Nysso Ltr, Pr6c. Car, Ins. 125-6 no. 27 



