a new Gems oflnjedis, 203 



Caput pun c> ulatum, fubvillofum villis fordidi colons. 



Thorax fordido-fubvillofus, linea intermedia longitudinali exa- 



ratus; callis{d), punclo fub alas, et uno utrinquc apud 



abdominis infertionem, pilis decumbentibus fericeo-argen- 



teis ornatis. Squama nigras (e), 

 Ala fubhyalinas, apice obfcuriores, nervis nigricantibus, abdo- 



mine circiter dimidio breviores, f. petiolum longitudinc 



aequantes. 

 Abdomen clavatum ; fegmento primo filiformi nigro ; fecundo 

 lineari, comprefTo, ferrngineo, pun&o excavato utrinque no- 

 tato; tertio campanulato ferrugineo; quarto nigro, bafi et 

 inferne ferrugineo ; reliquis nigris. 

 Long. corp. lin. 10. 

 fi Variat minor, thoracis callis, lateribus, et pofticis pilis fericeis 

 deftitutis ; alis unicoloribus. An fexus alter ? forfan mas ! 

 Long. corp. lin. 6. 



This fpecies, which is very common in Norfolk and Suffolk about 

 fandy banks of a funny expofure; though rare, according to the 

 ingenious Mr. Donovan, in the neighbourhood of London: iseafily 

 diftinguifhed from its congeners by the elongated petiolus of its ab- 

 domen, and its very fhoit wings. It may readily be known, even 

 when flying, by the fingular manner in which it carries its abdomen 

 with the anus pointing upwards, fo that it ftands nearly at right- 

 angles with that part of the thorax to which it is attached. The 

 hiftory of this infed is very entertaining, as may be feen in De 



(d) By the Colli I mean two little tubercles, one on each fide of the anterior part of the 

 thorax, to be met with in mod hymenopterous infects. 



(e) The Squama are the minute femi-circular fcales which cover and defend the root 

 •f the fuperior wings, one over each. 



Dd a ^eer. 



