68 PEOCEEDINGS OF THE NATIONAL MUSEUM. vol.63. 



second tergite a little wider than long; basal foveae distinct, striate, the 

 striae not reaching beyond the middle of the segment; tergites three 

 to six unsculptured, united over half as long as the second; six wider 

 than long, truncated apically; ovipositor exserted, the sheath as long 

 as the second segment; wings subhyaline, reaching a little beyond 

 the apex of the abdomen. Black; legs and antennae dark brown. 



Type locality. — Jacksonville, Florida. 



Type.—Qsit. No. 24G07, U.S.N.M. 



Redescribed from the type. There are no ecological data con- 

 nected with the specimen. 



Ashmead's drawing of the type'* is almost wholly at variance with 

 the specimen supposed to have been figured as may be seen by com- 

 paring the former with the description written above. In the type 

 the notauli are incomplete ; the antennae are gradually incrassated 

 toward tip; the abdomen is wider than the thorax and less than twice 

 as wide as long. Moreover Ashmead does not mention in the de- 

 scription nor show in the drawing the peculiar structure of the vertex, 

 the distinguishing character of the group to which the species belongs. 



33. PLATYGASTER UTAHENSIS (Ashmead), 



Polygnotus utahensis Ashmead, Bull. 45, U. S. Nat. Mus., 1893, p. 314. 



Female. — Length 1.20 mm. Short and stout, with the appearance 

 of some of the species of Teleas; head shaped as in 'pluto but not wider 

 than the thorax, and with the projection more acute, situated over 

 the posterior margin of the eye, in the middle of the head as seen 

 from above; occiput and vertex posteriorly, transversely striate; 

 cheeks strongly convex, aciculate-shagreened; interocellar area pol- 

 ished, unsculptured;- frons faintly aciculate laterally, not striate 

 below; joint three of antenna a little longer than wide, narrower and 

 shorter than four; four not much longer than wide, as long as five 

 but a little narrower; six as long and as wide as five, slightly longer 

 than wide; joints beyond the sixth missing (all of them undoubtedly 

 a little longer than wide) ; thorax three-fourths as wide as long, highly 

 convex above, as wide as high; pronotum finely aciculate; mesono- 

 tum polished, unsculptured; notauli distinct on basal half, the median 

 lobe truncated posteriorly ; scutellum transverse, convex, highly pol- 

 ished, sparsely pubescent; abdomen as wide as the thorax, broadly 

 ovate, a little over three-fourths as wide as long; first tergite angu- 

 late sublaterally, the median area quadrate, traversed by many lon- 

 gitudinal carinae; second tergite five-sixths as long as wide; basal 

 foveae short, striate, the striae not reaching beyond their apices; 

 area between the foveae with several carinae extending as far poste- 

 riorly as the striae; tergites three to six unsculptured, united one- 



i^BuU. 45, U. S. Nat. Mus., 1893, pi. 12, fig. 10 



