188 Mr. E. Saunders' Siijwjms of 



(15) 12. Antennffi longer. Scape of ^ less swollen ; face 

 hairy, or mandibles with a pale line. J ; thorax 

 with two yellow spots on the anterior margin ; 

 vertex of head not incrassate. 



(14) 13. Face in ^ hairy ; 1st segment of abdomen shining, 

 very largely and remotely punctured ; mandibles 

 black. 5 ; flagellum of antennae Tpale beneath. . Iiiitilin«t<t. 



(13) 14. ^ ; face not hairy ; 1st segment of abdomen dull, 

 finely punctured ; mandibles and scape of an- 

 tennffi with a pale yellow line. J ; flagellum entirely 

 dark . . . . . . . . . . . . . . (■u}ifns((. 



(12) 15. Antennffi shorter ; scape of ^ very much swollen ; 

 face not hairy ; mandibles entirely black. J ; 

 thorax not spotted in front ; vertex of head in- 

 crassate . . . . . . . . . . . . hn'riainnx. 



(11) If). Scape of anteunfc in ^ not thickened, its sides sub- 

 parallel ; basal segment of abdomen dull, largely 

 and closely punctured. J ; face round ; spots of 

 the face suboval and i^laced diagonally . . . . pictipc.". 



1. Prosopis conuitd, Smith. 



Smith, Trans. Ent. Soc. Lond. iv., p. 32, pL iii., 

 tigs. 2 and 4 ; Cat. Brit. Hym., 2nd ed., p. 9 ; <? = 

 plantaris, Sm. 



Black, shining ; face black in both sexes ; $ with the 

 antennae, except the scape posteriorly and a line along 

 the back of the flagellum, the anterior tibise in front, the 

 base of the tibiae in the other pairs, and all the tarsi, yel- 

 low. ? with only the flagellum beneath fulvous, a narrow 

 band at the base of each of the tibiae, and sometimes 

 two spots on the collar yellow. 



Head punctured, <? with a shining impression above 

 the insertion of the antennae ; scape much widened and 

 fringed with long pale hairs ; when the antennae are 

 thrown back these widened scapes entirely hide the 

 polished impression, and appear exactly to fit into it ; in 

 the $ the antenna are simple, but the clypeus is raised 

 at its base, and has an angular projecting tooth on each 

 side. Thorax dull, closely and finely punctured, scu- 

 tellum more largely and remotely ; metathorax rugose. 

 Abdomen very shining and polished, deeply punctured 

 on the 1st and 2nd segments ; tibiae short, the inter- 

 mediate pair somewhat dilated ; intermediate tarsi with 

 the basal joint in the 3 produced at its base, in front, into 

 a rounded projection. Genitalia of the S with the stipites 

 truncate at the apex, with very long projecting hairs ; 

 8th ventral segment terminating in two divergent pro- 

 cesses, fringed at the apex; 7th produced at the sides 



