NO. 1866. NEW SAWFLIES IN U. 8. NATIONAL MUSEUM— ROHWER. 397 



brownish beneath; abdomen except apex of sheath rufoferruginous. 

 Wings and venation black. 



Tampa, Florida. One female collected April 28, 



Type.— Cat. No. 14009, U.S.N.M. 



STRONGYLOGASTER MELANOGASTER, new species. 



Differs from Strongylogaster uncus Norton in the black abdomen, 

 and more broadly truncate hypopygidium. 



Male. — Length 7 mm. Clypeus with a rather narrow arcuate 

 emargination, lobes broad obtusely pointed; supraclyi^eal area 

 strongly convex; supraclypeal foveas deep, circular in outline; 

 antennae foveas narrow, elongate, sharply defined; antennal furrows 

 present, but poorly defined from foveas, nearly complete subpuncti- 

 form at postocellar area; middle fovea rather large, circular in out- 

 line; ocellar basm subtriangular, shining, poorly defined; postocellar 

 furrow present; postocellar line sHghtly longer than the ocellocci- 

 pital but shorter than the ocellocular; postocellar area shining, 

 transverse, not parted; tliird and fourth antennal joints subequal; 

 front very closely punctured, occiput very sparsely so; pronotum 

 punctured; meso thorax shining, nearly impunctate; third cubital 

 cell much longer than the second, receiving the transverse radius 

 near apical third; transverse median beyond the middle; hypopy- 

 gidium broadly truncate. Black; mesoepimeron, mesoprescutum 

 and scutum, rufous; tip of clypeus and anterior tibias beneath brown- 

 ish. Wings and venation black. 



Jacksonville, Florida, two males; St. Nicholas, Florida, four males. 

 All from the Ashmead collection. 



Type.— C&t. No. 14010, U.S.N.M. 



Genus HEMITAXONUS Ashmead. 



Epitcaonus MacGillivray, Can. Ent., vol. 40, 1908, p. 365. 



The characters offered by Rohwer ^ to separate Epitaxonus from 

 Hemitaxonus are not even of specific value. In a bred series of 

 Hemitaxonus duhitatus the relative length of the third cubital cell 

 and the appendiculation of the hind radial cell varies considerably. 

 The other characters are of but little value, the relative difference 

 between the length of the joints of maxillary palpi and hind tibiae 

 is not great enough to be of any value. 



HEMITAXONUS DUBITATUS var. AMICUS (Norton). 



Taxonus albidopictus Dyae, Journ. New York Ent. Soc, vol. 5, 1897, p. 20. 

 Hemitaxonus albidopictus Rohwer, Proc. U. S. Nat. Mus., vol. 38, 1910, No. 

 1739, p. 204. 



The specimens in Doctor Dyar's collection labeled Taxonus albi- 

 dopictus, which were reared from the larvae described in the above 



1 Can. Ent., vol. 42, 1910, p. 50. 



