20 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.52. 



Length. — 22-24 mm. 



This is one of the commonest of tropical species and has been 

 reported from Mexico, West Indies, and as far south as the Argentine 

 Kepublic. Fox in his Synopsis of the Bembicini of Boreal North 

 America reports a single specimen from California, taken by D. W. 

 Coquillett. I have before me from Mexico and the West Indies 9 

 males and 13 females. 



STICTIA CAROLINA Fabricius. 



Figs. 2, 36, 37, 40, 41, 42, 44. 



Bembex Carolina Fabricius, Ent. Syst., vol. 2, 1793, p. 249. 

 Monedula Carolina Latreille, Hist. Nat., vol. 13, 1805, p. 302, pi. 102, fig. 3. 

 Monedula Carolina Lepeletier, Hist. Nat. Hym., vol. 3, 1845, p. 281. 

 Monedula Carolina Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CL, 

 vol. 99, 1890, p. 110. 



Male. — Black: Lateral stripes on labrum, pair of lateral spots and 

 median stripe on clypeus usually contiguous, spots between antennae, 

 base of mandibles, scape below, anterior and narrow posterior orbits 

 both shortened above, white or greenish yellow. Fasciae of first tergite 

 broad laterally, acutely narrowed, and rather widely interrupted 

 medially; second, broad laterally, somewhat less widely interrupted 

 medially, roundly emarginate on either side of the midline with 

 anterior margin curved forward medially; third usually broken into 

 four spots, sometimes only two; small lateral spots occasionally on 

 tergites four and five, lateral spots on seventh usually connected on 

 midline, lateral spots on sternites 2-3 and occasionally on 4, tarsi 

 above more or less, light creamy or faintly greenish yellow. Tibiae 

 except a broad stripe on inner surface of posterior pair, distal extremi- 

 ties of femora, orange-yellow. 



When seen from above the ultimate segment of the flagellum is 

 roundly pointed at the apex, and segments 6-1 1 on their posterior sur- 

 faces show more or less well-marked prominences. Segments 6-12 

 bear pits on their posterior surfaces most conspicuous on segment 6. 

 There is a conspicuous tooth on the underside of the apical end of the 

 middle femora, which, when the legs are folded, is covered by a dila- 

 tion on the posterior side of the base of the metatarsus. There is a 

 trace of a median carina on the second sternite, and on tergite 6 

 there is a small, weakly developed median tubercle, behind which 

 there is a transverse area more finely sculptured than the surrounding 

 surface. The ultimate tergite is notched at the tip and each lateral 

 angle is produced into a broad truncated spine. 



Female. — Black: Labrum, mandibles except tips, clypeus except 

 usually a pair of black spots basally variable in size, pair of spots 

 continuous with the apical border of frons, scape below; anterior and 

 narrow posterior orbits; broken line on posterior border of pronotum; 



