20 THE CANADIAN ENTOMOLOGISt. 



In Marlatt's table (Nematinre of N. Am.) this species runs between 

 fulvipcs, Nort., and pectoralis, Cress., but is neither of these, as the clypeus 

 is deeply, narrowly emarginate, the middle fovea elongate, etc. 



Pristiphora zella, n. sp. — °. . Length, 6 mm.; length of anterior 

 wing, 6*4 mm. Head punctured with medium-sized punctures, rather well 

 separated, closest on inner orbits ; frontal furrows not reaching occiput, 

 but distinct just above the ocelli ; distance between the lateral ocelli more 

 than the distance to the nearest eye margin ; sides of ocellar basin faintly 

 seen below lateral ocelli ; middle fovea deep, distinct, slightly elongate ; 

 third antennal joint longer than fourth, but only slightly so ; antennal foveae 

 large ; middle carina rather distinct, round on top ; clypeus very slightly 

 emarginate ; mesonotum punctured, but not so strongly so as head; meso- 

 pleura and mesopectus shining, impunctate ; first joint of hind tarsi longer 

 than 2 +3 + 4 ; inner claw tooth large, in about middle of claw j stigma 

 rounded on lower margin; transverse cubitals hyaline; sheath broad, apical 

 margin with long hairs ; cerci long. Colour black ; anterior margins of 

 clypeus, labrum, mandibles (apex piceous), broad lateral angles of pro- 

 notum, tegulse, legs entirely (femora reddish), sutures of metathorax at 

 sides, between basal plates, venter, pallid or wJiite ; sheath brown; apex 

 of posterior tibia.' and their tarsi infuscated ; ocelli (dry) hyaline; wings 

 clear hyaline, iridescent ; venation, except costa, which is pallid, brown ; 

 head and thorax with white pile, longest on clypeus; spot in second cubital 

 cell small. 



Habitat. — One % from Nebraska, probably from Lincoln, May 5, 

 '03. Type in collection of Univ. of Nebraska. 



In Marlatt's table (Nematinae of N. Am.) this species runs to Koebelei, 

 Marl. (Wash, and Alaska), but the abdomen above is entirely black, there 

 is no rugous band before scutellum, and the structure of the head is 

 different. 



Euura perdita, n. sp. — $. Length, 4^ mm. Rather slender; head 

 in the ocellar region with fine, rather dense punctures ; ocelli forming a 

 low triangle ; ocellar basin wanting ; middle fovea shallow, rather indis- 

 tinct, circular ; antennal foveae not large ; antennae medium, third, fourth 

 and fifth joints equal ; clypeus angularly emarginate, lobes broad, low, 

 rounded at apex ; dorsulum with some fine punctures ; tarsal claws 

 minutely cleft ; intercostal nervure slightly basad to basal ; transverse 

 median in middle of cell ; upper and lower discal cell of hind wing equal 

 on outer margin ; stigma straight on lower margin until about apical sixth, 



