14 THE ENTOMOLOGIST. 



18. parvuhis, Dhlb. — One female in a sandpit at Bentley Woods, August, 



1896. 

 Pompilus, Fab. 



19. plumbeus, Fab. — Not uncommon at Bixley in August. 



20. chalybeatus, Sehiodte. — Bare ; Foxhall, and at Felixstowe, flying 



on the sands. 



21. gibbus, Fab. — Belstead, Foxhall, Ipswich, and Bentley Woods, singly. 



22. unguicularis, Thorns, — Uncommon ; Wherstead and Foxhall in 1896. 



23. pectinipes, V. d. Lind. — The commonest of the genus, and widely 



distributed. 

 Trypoxylon, Latr. 

 24:.Jigulus, Linn. — Not very common. 



25. clavicerum, Lep. — Abundant ; the genus is always taken flying to 



their nests in posts. 



26. attenuatum, Sin. — Uncommon ; Dodnash Wood and Clopton. 



Tachytes, Panz. 



27. pectinipes, Linn. — Rare; one on Umbellifera?, Ipswich, 1896. 



Ammophila, Kirb. 



28. sabulosa, Linn. — Sparingly since 1893. 



29. hirsuta, Scop. — Martlesham Heath (Kirby). 



30. lutaria, Fab. — Martlesham Heath, two females (Kirby). 



Stigmus, Jur. 



31. Solskyi, Moraw. — Rare; one at Great Bealings, flying to nest in post. 



Diodontus, Curt. 



32. tristis, V. d. Lind. — Common ; flying to nests in sandbanks; Gran- 



disburgh, Bentley Woods, &c. 

 Passal<ecus, Shuck. 



33. comigera, Shuck. — Common. 



34. insignis, V. d. Lind. — Common in woods about Bentley. 



35. gracilis, Curt. — Rare ; at flowers on the banks of the Gipping. 



36. monilicornis, Dbm. — Both sexes flying to nests in palings ; Ipswich, 



June 22nd, 1896. 

 Pemphredon, Latr. 



37. lugubris, Fab. — Rare ; Bentley Woods. 



38. shuckardi, Moraw. — Not common on the banks of the Gipping and 



at Foxhall. 

 Mimesa, Shuck. 



39. bicolor, Jur. — One only; on umbels at Bentley Woods, in 1894. 



Gorytes, Latr. 



40. tumidus, Panz. — Local; Bramford, Foxhall, and Bentley Woods. 



41. mystaceus, Linn. — Uncommon; Bentley Woods and Blakenham. 



Nysson, Latr. 



42. spinosus, Fab. — Taken by Mr. Baylis and myself at Bentley Woods 



in 1894, but not seen in the District since. 



43. dimidiatus, Jur. — Rare ; Bentley Woods and Foxhall, singly. 



Mellinus, Fab. 



44. arvensis, Linn. — Common. 



Cerceris, Fab. 



45. labiata, Fab. — Singly at Baylham, Bentley Woods, Bramford, and 



Little Blakenham, on Spircca ulmaria and Achillea millefolium. 

 Crabro, Fab. 



46. capitosus, Shuck. — Ipswich ; bred from bramble stems (Rotlmey). 



