442 DESCRIPTIONS OF ICIINEUMONID.E — ASHMEAD. 



a little recurved. Wings hyaline, iridescent; stigma and veins pale 

 brown, the costae to stigma yellowish ; areolet absent. 



Habitat. — Nebraska. 



Described from one specimen received from Mr. L. Brunei*. The 

 peculiar shape of the abdomen of this species is remarkable, approach- 

 ing closely to the Cynipid genus Ibalia, and it is probably the type of 

 a new genus, although some of the characters seem to agree with the 

 genus Trematopygus, in which it is placed temporarily. 



ADELOGNATHUS Holmgren. 

 Adelognathus texanus sp. nov. 



Female.— Length, 6.4 mm . Robust, black, punctate. The scape towards 

 apex beneath, second antenual joint beneath, mandibles, palpi, apical 

 tips of femora, bases of tibiae, tegulae and a line beneath, a large, 

 broad, irregular spot at sides of mesonotum anteriorly, spot at apex of 

 scutellum,postscutellum, and apical margin of all abdominal segments, 

 yellow. The head is transverse ; cheeks as wide as the eye ; clypeus 

 rounded before and projecting over the mandibles; antenna) 31-jointed, 

 as long as the head and thorax together, black, the first joint of 

 flagellum about three and a half times as long as wide, the following 

 joints gradually becoming shorter and shorter until they are wider 

 than longer. Mesopleura? rugose; metathorax areolated. Legs rufous; 

 coxae, except tips and posterior femora, black ; tips of coxae, tips of 

 femora, bases of tibiae, and base of first joint of posterior tarsi, yellow. 

 Abdomen sessile, coarsely punctate, the first segment bicarinated on 

 disk for two-thirds its length, apical margin of all segments, lemon- 

 yellow ; venter yellow ; the three terminal ventral segments, black, 

 their apical edges narrowly edged with yellow ; ovipositor very short. 

 Wings hyaline ; stigma and veins brown, the costae towards base yel. 

 low; the submedian cell is much longer than the median, the cubital 

 nervure abruptly bent before the middle ; areolet subpentagonal. 



Habitat. — Texas. 



Described from two specimens in Belfrage collection. 



ORTHOCENTRUS Graveuhorst, 

 Orthocentrus californicus sp. nov. 



Female.— Length, 3.4 mm . Polished black. The swollen face trans- 

 versely aciculated ; a triangular white spot on anterior orbits, just 

 above base of antennae. Antennae brown, the scape very long, black. 

 Metathorax areolated, the disk punctate. Legs red, the trochanters 

 yellowish. Abdomen from the middle towards apex compressed, black, 

 polished, the suture between second and third segments and the ven- 

 ter, yellowish, first segment subopaqne, minutely rugulose, with two 



