103 HAKPACTU8. 



the scutellum, yellow; mugs hyaline, with a dark cloud occu- 

 pying the marginal, second submarginal, and a portion of the 

 thud discoidal cell; the stigma fulvous, the nervures pale 

 rufo-teataceous ; the apex of the anterior coxae and trochanters, 

 and the femora and tibiae beneath, yellow ; the extreme base of 

 the posterior tibia; fulvous beneath ; the anterior and interme- 

 diate tarsi fulvous, with the claw-joint piceous, the posterior 

 tarsi entirely so ; the anterior tarsi strongly ciliated, the legs 

 spinose. Abdomen shining and delicately punctured; the 

 first segment subpyriform, with a large triangular yellow spot 

 on each side uniting in the middle or only slightly interrupted ; 

 the second segment with a broad yellow band just before the 

 margin ; the margin of the third with a narrow band, which is 

 continued across the venter. 



The Male differs in having the inner orbits of the eyes yellow ; 

 the antennae with the tenth joint notched beneath ; the man- 

 dibles yellow, with their apex piceous; the tarsi yellow testa- 

 ceous ; the posterior tibia- yellow on the outside at their base ; 

 and the terminal segment of the abdomen with two strong setae. 



Only two or three specimens of this species have been cap- 

 tured in this countrv ; it is said to have occurred near London. 

 Mr. Curtis's specimen was captured in the New Forest, Hants. 



Genus 3. HARP ACTUS. 



Pompilus, pt., Panz. Faun. Germ. 81. 15. 

 Mellinus, Panz. Krit. Revis. ii. 169. 

 Arpactus, pt., Jurine, Hym. 194. 

 Gorytes, pt., Wesm. Not. Gar. ii. 7. 

 Harpactus, Shuck. Foss. Hym. 221. 

 Larra, pt., Dahlb. Exerc. Hym. 51. 



Head subrotund, as wide as the thorax ; eyes ovate, lateral ; 

 the stemmata placed in a curve forward on the vertex ; antenna- 

 of the same length in both sexes, curved in the female, porreet 

 in the male, with the tenth joint notched beneath, and the apical 

 one a little bent, inserted at the base of the clypeus ; the clypeus 

 transverse, convex, slightly marginate in front ; labrum trian- 

 gular ; mandibles bidentate. Thorax ovate ; collar slightly 

 narrowed in front into a neck; the scutellum transverse; the 

 metathorax truncated; the anterior wings with one marginal 

 and three submarginal cells, the marginal cell long and narrow, 

 the second submarginal receiving both the recurrent n&rcures ; 



