294 E. T. CRESSON. 



Monedula insularis. 



Monedula insularis, Dahlb. Hym. Eur. i, p. 186, 9- Cresson, Proc. Ent. Soc. 

 Phil, iv, p. 143, % 9. 

 In addition to the markings enumerated in description of normal 9 

 (1. c. p. 143), there is a transverse yellow mark, sometimes slightly in- 

 terrupted in the centre, on posterior margin of mesothorax, immediate- 

 ly before the scutellum, and the two lines on the mesothorax are some- 

 times longer, broader and more distinct. In Var. 9 , some specimens 

 have two small, oblique yellow spots on posterior face of metathorax, 

 the longitudinal lines of mesothorax wanting, and the metathorax im- 

 maculate except a reuiform mark on each extreme side. 



Bembex argentifrons. 



Bemhex argentifrons, Cresson, Proc. Ent. Soc. Phil, iv, p. 141, %, 9 • 

 The 9 varies much in size, from 4^ to 6 lines long; the two short 

 lines on mesothorax are wanting, the emargination of abdominal fasciae 

 more or less obsolete; venter sometimes with more black than yellow. 

 The % is quite constant in coloration and style of ornamentation, the 

 bands of the abdomen, however, are often without any green stains. 



Bembex armata. 



Bemhex armata, Cresson, Proc. Ent. Soo. Phil, iv, p. 142, '^ 9 • 

 The % has the clypeus sometimes bright yellow; the pile on the tho- 

 rax is- sometimes so dense as almost to cover the markings, especially 

 those of the mesothorax. 



Odynerus dej actus. 



Odynerus dejcctus, Cresson, Proc. Ent. Soc. Phil, iv, p. 164, 9- 



% . — Clypeus, mandibles, scape of antennge, spot on each side of me- 

 tathorax just behind postscutellum, four anterior femora, all the tibiae, 

 and spot on four posterior cox^e beneath, lemon yellow; tarsi yellow- 

 ish-fulvous; fifth and sixth dorsal segments of abdomen have each a 

 short, apical, yellow fascia. Antennae subclavate, hooked at tip ; oth- 

 erwise like the 9 • Length 8 lines. 



One specimen. (Coll. Dr. J. Gundlach.) 



Odynerus cingulatus. 



Odynerus cingulatus, Cresson, Proc. Ent. Soc. Phil, iv, p. 162, 9 • 

 % . — Pubescent ; head slightly broader than thorax ; clypeus sube- 



marginate at tip; flagellum of antennte fulvous beneath, apex hooked; 



anterior angles of prothorax prominent; otherwise like the 9. Length 



3| lines. 



Two specimens. (Coll. Am. Ent. Soc. and Dr. J. Gundlach, No. 216.) 



Odynerus cubensis. 



Odynerus cubensis, Cresson, Proc. Ent. Soc. Phil, iv, p. 156, 9 • 

 % . — Fusco-ferrugiuous, covered with a rather dense, short, subser- 



