ODYNERUS SINUATUS. 201 



transverse line between their insertion, yellow; sometimes a 

 minute yellow dot behind the eyes. Thorax : a large spot on 

 each side of the prothorax anteriorly, a smaller one beneath 

 the wings, the tegulae, two ovate spots on the scutellum, the 

 tibiae, tarsi, and tips of the femora, yellow ; wings hyaline, 

 slightly stained along the anterior margin of the superior pair, 

 the nervures fuscous, becoming ferruginous at the base of the 

 wings; a ferruginous stain on the tegulae; a black or fuscous line 

 on the anterior and intermediate tibiae beneath; the tarsi slightly 

 ferruginous, with the claw-joint fuscous. Abdomen : the apical 

 margins of the segments bordered with yellow, that on the 

 second segment broad, and slightly narrowed in the middle ; 

 the apical segment immaculate. 



The Male has the mandibles and clypeus, except their margins, 

 yellow; the apical joints of the antennae yellow beneath. This 

 insect has been regarded as the Vespa muraria of Linnaeus, 

 which it very closely resembles ; a comparison, however, of this 

 and the Linnaean type in the cabinet at the Linnaean Society 

 satisfactorily proves them to me to be distinct. In " muraria" 

 the head is more prolonged behind the eyes ; the scape black ; 

 there is no spot beneath the wings or on the scutellum ; the 

 truncated portion of the metathorax not shining, and strongly 

 striated, and the bands on the abdomen much narrower. 



This species is very local, and probably nowhere abundant ; in 

 the British Museum collection there is only a single specimen, 

 from the Stephensian Collection ; it is the 0. Eumenoides of 

 Stephens's ' Systematic Catalogue.' In 1837 I captured a single 

 female at Darenth, since which time I have not met with it. 



2. Odynerus sinuatus. 



O. niger ; thorace quadrimaculato ; abdomine fasciis tribus flavis, 

 antice subsinuatis ; tibiis tarsisque flavo-variegatis. 



Vespa sinuata, Fair. Ent. Syst. ii. 270 ; Syst. Piez. 264. 61. 

 Odynerus bifasciatus, Spin. Ins. Lig. i. 184. 



Wesm. Mon. Odyn. Belg. 45. 8. 



St. Farg. Hym. ii. 665. 44. 



Sams. Mon. Guepes Sol 124. 3. 



Symmorphus bifasciatus, Wesm. Mon. Odyn. Belg. Supp. 2. 10. 

 Odynerus connexus, Curtis, Brit. Ent. iii. 138. 1. 138. 

 Odynerus sinuatus, Sauss. Mon. Guepes Sol. Supp. 192. 86. 



Female. Length 4 lines. Black ; head, thorax, and basal seg- 

 ment of the abdomen punctured, the latter coarsely so; the 



K 5 



