124 



Lycog. pullatiis. Atra, subnitida, siibpunctulala : alis hyalinis, ne- 

 bula subapicali signatis : tibiis externe plantisque basi et abdo- 

 minis segmentis 2 — 4 macula lateraliter albidis. Long. 4|^ lin. 

 Expans. al. 9 lin. 

 Inhabits North Carolina. I am indebted for a specimen of this in- 

 teresting insect to the kindness of E. Doubleday, Esq. who captured it. 

 In addition to the above description it may be observed that the up- 

 per part of the head, the face, the scutellum and the abdomen slightly 

 shine, that the metathorax is rugose, and that of the lateral white spots 

 upon the abdomen, the first is the largest. 



Genus 3. — Aulacus, Jurine. 

 Type. Aulacus striatus, Jurine. 



In addition to the generic characters already given by Jurine, La- 

 treille (Genera, tom. iv. pp. 385, 6) and St. Fargeau (Ency. Met. torn. 

 x. p. 30), I may observe that the posterior coxae have always an acute 

 tooth within, and that the tarsal claws are serrated. 



Sect. 1. The first and second cells receiving each a recurrent nervure. 



1. Aid. striatus, Jurine, ' Hymenop.' p. 90, pi. 7, gen. 3. 

 Long. 35^ lin. Inhabits Switzerland. 



2. Aul. Patrati, Serville, 'Ann. Soc. Ent. de France,' t. 7. vii. 413. 



Long. 5 lin. Inhabits Touraine, South of France. 



3. Aul.fasciatuSj Say, 'Contrib. Macl. Inst.' vol. i. p. 67. 

 Long. 6 lin. Inhabits Ohio, N. America. 



4. Aul. Latreilleanus, Nees von Esenbeck, ' Monog. Evania.' 304. 



Long. 6\ lin. Inhabits central Germany. 



5. Aul. Jlagellatus, Dahl. Nees, ib. p. 305. 



Long. 53- lin. Inhabits Austria. 



6. Aul. niger. Totus niger : alis hyalinis, macula ad stigma et nu- 

 becula apicaU bmnneis. Corj). long. 74 lin. Exp. alar. 12 lin. 



Var. Segmento prime rufo, basi tantum nigro. 

 Inhabits North America. My own collection. 



7. Aul. signatus. Niger : scapo antennarum pedibusque 4 anticis 

 rufo-testaceis : alis hyalinis, macula ad stigma bruunea. Long. 

 54 lin. Exp. alar. 9\ lin. 



