576 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



clypeus rather transversely elliptical, at least twice as wide as long 

 down the middle, not distinctly separated from the face except 

 laterally by reason of the presence of a foramin or fossa on each side 

 between it and the malar space and base of mandibles, convex; 

 mandibles compact, the left one overlapping the right one when 

 flexed, its upper tooth reacliing close to the base of the other mandible, 

 its lower tooth distinctly shorter than the upper tooth and less 

 developed; labrum exserted sufficiently to hide the upper edge of the 

 mandible; malar space at least half as long as the eyes, separated from 

 the face by a fine carina or raised line; palpi simple; antennae simple, 

 18-jointed; notauli more or less developed on the anterior half of the 

 mesonotum; sternauli wanting; lateral carinas of mesonotum con- 

 tinued to the middle of the sides of the scutel, the latter ending in a 

 poorly developed carina that is forked at apex; wings essentially as 

 in Agriotypus (Walker) Curtis except in the second abscissa of the dis- 

 coidal vein, which is hardly longer than the third, and in the neither 

 angulated nor broken but vertical nervellus; onychium of hind legs 

 as long as the third tarsal joint, claws simple, empodia well developed, 

 nearly as long as the claws m the hind legs; propodeum areolated, the 

 areola and petiolarea confluent, the areopetiolarea longitudinally con- 

 cave and extendmg almost to the base of the propodeum, paracostula% 

 or that portion of the apical transverse carina between the median 

 and longitudmal carmge, produced into a lamina that is directed upward 

 and backward, spiracles of prodeum perfectly round and with a caruia 

 between them and the metapleurse; spiracles of first segment project- 

 ing beyond the lateral outside line of the petiole and base of post- 

 petiole; spiracles of the visible segments inconspicuous and round. 

 Named for Mr. P. R. Myers, who discovered this remarkable species. 



MYERSIA LAMINATA, new species. 



Type-locality. — Plummers Island, Maryland. 



Type.— Csit. No. 15006, U.S.N.M. 



Female. — ^Length 4 mm. : head, thorax, propodeum, and first 

 abdominal segment black or blackish; mandibles, labrum and palpi 

 mostly stramineous; antennae brownish stramineous, becoming black- 

 ish toward tip; scape at least twice as long as thick; pedicel rather 

 globular; joints of the flagel subequal, the first joint distinctly longer 

 than the second and apparently five times as long as thick at base; all 

 jomts of the flagel longer than thick except the antepenultimate and 

 penultimate joints which are as long as tliick or nearly as long as 

 tliick; face rather duU, finely sculptured, clypeus more shining, with 

 a few indefinite punctures; front and vertex finely reticulated, and 

 with scattered smaU punctures; lateral oceUi as near or a little nearer 

 to each other than to the eye margin, nearer to the anterior oceUus 

 than to each other and as near or almost as near to the occipital 

 carina as to the anterior oceUus; prescutum mostly sculptured like 



