432 Mr. 1\. E. Turner on Fossorial Hymenoptera, 



26. Seciiiid dorsal segment bright blue, no spot 



of pubescence on segments 3-5 E. ameifrons, Andr^. 



Second dorsal segment bruuze, a spot of 

 ■vN-bite pubescence on each of the three 

 i'ollowing segments E. hirtelln, Turn. 



27. Almost wholly luteous biYnvn, entirely 



covered with pale golden pubescence. . 28. 

 Jsot wholly or mo>tly brown, or not 

 covered with golden pubescence 29. 



28. Abdomen subpetiolate ; front not pro- 



duced between the antennas E. lutaria, Sm. 



Abdomen sessile ; fi'ont bluntly produced 



between the autemife . . . .' E. auropilom, Sm, 



29. First dorsal segment strongly depressed, 



flattened at the base, and forming a 

 short petiole ; mostly ferruginous, head 

 and apical segments of abdomen black, 

 with spots of pale golden pubescence. . E. 7wtahi/is, Sm, 

 First dorsal segment Avithout a flatterjed 

 petiole ; colour not mostly ferruginous. 30. 



30. Second dorsal segment almost wholly ful- 



vous or ferruginous, or with a large 



fulvous spot on each side 31. 



Second dorsal segment without conspicuous 

 fulvous or ferruginous markings 33, 



31. Second dorsal segment almost wholly ful- 



vous or feiTuginous 32. 



Second dorsal segment with a large ful- 

 vous spot on each side E. venusta, Sm, 



32. Thorax longer than broad, black ; second 



dorsal segment as broad as long E. instabilis, Sm, 



Thorax as broad as long, ferruginous ; 

 second dorsal segment much longer 

 than broad E. fuhodorsalis, Turn, 



33. Second dorsal segment coarsely longitu- 



dinal] y rugose-striate 34. 



Second dorsal segment not coarsely rugose- 

 striate 35. 



34. Head nearly as broad as the thorax ; apical 



band of pubescence on second dorsal 

 segment continuous, no basal spots. ... E. scabrosa, Sm, 

 Head much narrower than the thorax ; 

 apical band of pubescence ou second 

 dorsal segment broadly interrupted; 

 two spots of pubescence at the base . . E. scahrosiformis, Turn, 



35. Abdomen with marks of golden pubes- 



cence 36. 



Abdomen with marks of white pubes- 

 cence 38. 



36. Thorax as broad as long 37. 



Thorax longer than broad E. macnlata, Sm. 



37. Head and thorax ferruginous E. bipartita. Sm. 



Head and thorax black E. sccmdens, Turn. 



38. Second dorsal segment with a median 



longitudinal band or elongate spot of 

 white pubescence 39. 



