200 CHARLES ROBERTSON. 



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 OdyiieriiN flori<laiiii!« u. sp. 



9. — Clypeus pyriform, its punctures rather fine and sparse, its apex broad, 

 regularly truncate; head and thorax with not very coarse punctures; metathorax 

 almost truncate, its concavity shallow, finely striate, border sharp; anterior face 

 of first segment of abdomen with a rather distinct suture, followed by a fluting, 

 superior face coarsely and closely punctured, second segment with the punctures 

 rather fine and sparse. Black ; teguise, margin of second segment of abdomen 

 and the legs, except base of hind pair, yellow ; red ornaments as follows : spot on 

 mandibles, arcuate line on clypeus, scape in front, spot on front, si)ot in sinus of 

 eye, postocular spot, two large spots on prothorax, si)ot under the wing, postscu- 

 tel, sides of metatliorax, superior surface of first segment of abdomen, and a large 

 spot on each side of second segment. Length 8 mm. 



Inverness, Florida; 2 9 specimens. Closely related to 0. cly- 

 peatus. It may be only a variety of that species. 



Odyiieriis apopkensis n. sp. 



'^ . — Clypeus almost regularly pentagonal, the apex arcuate, with dentiform 

 angles; head coarsely and confluently punctured ; thorax even more coarsely, the 

 intervals with finer punctures; postscutel somewhat crested, crenulate; concavity 

 of metathorax rather deep, small, striate, rounded, without lateral angles, the 

 superior ridges sharp, separated above from postscutel by a notch ; abdomen 

 rather strongly truncate at base, conical, the first segment short, nearly as wide 

 as second, first two segments finely roughened, with shallow, rather sparse punc- 

 tures, borders of segments 2-5 coarsely punctured, the punctures interspersed 

 with finer punctures. Black; clypeus pale yellow; base of mandibles, line or 

 spot between antennpe, and hook of antennae pale or orange yellow ; border of 

 second segment of abdomen yellow; first two joints of antennse and the legs 

 orange-red ; red ornaments as follows: postocular spot, prothorax, except hind 

 angle, tegulse, spot beneath, postscutel, sometimes sides of metathorax, first seg- 

 ment of abdomen, except anterior face, a large triangular patch on each side of 

 base of second segment connected with two large more or less confluent patches 

 on the ventral surface. Length 10-13 mm. 



Inverness, Florida ; 4 S specimens. This species belongs to the 

 group of 0. foraminatas Sauss. 



Odynerus fiiiidatiforniis n. sp. 



"^ . — Of the size, form and structure of 0. fimdatus Cr. % , the margin of second 

 segment of abdomen reflexed, but not the third also as in that species; the second 

 segment also less swollen. Black: clypeus, labrum, base of mandibles, line be- 

 tween antennie, lower border of orbits in front, scape in front, spot behind tegu- 

 lse, spots on coxte and knees yellow; postscutel, borders of abdominal segments 

 1-4, and two spots on base of second segment orange-yellow; flagellum beneath, 

 legs, spot l)eliind eye, prothorax, tegula;, spot beneath, sides of metathorax. seg- 

 ment 1 of abdomen, except base, red. Length 11 mm. 



Inverness, Florida; 1 $ specimen. 



OdyiieriiM aii!«tralis n. sp. 



9 . — Clypeus rather coarsely punctured, as wide as long, apex concave, arcuate, 

 with dentiform angles; head and thorax shining, rather coarsely, not very 



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