300 THE CANADIAN ENTOMOLOGIST. 



Halidus viridatus, n. sp., $ . — Length, 5-6 mm. Head and thorax 

 green, abdomen black, with apical margins of the segments testaceous. 

 Head broad, length and width about equal ; face finely and densely punc- 

 tured, clypeus purple, with few rather coarse punctures ; mandibles dark 

 at base, with apices rufous ; antennse black, testaceous behind. Meso- 

 thorax with punctuation sparse and fine, nearly bare, the pubescence 

 short and thin ; metathorax rounded, the disc coarsely sculptured, the 

 raised lines prominent, rather far apart and reaching to the apex. 

 Wings yellowish hyaline, the stigma and nervures yellowish brown, the 

 tegul?e testaceous. Abdomen impunctate, first and second segments 

 smooth and shining, apical segments with thin appressed pale pubescence. 

 $ . — Length a little over 5 mm., more slender than the female. 

 The sides and lower half of face clothed with dense whitish pubescence, 

 apex of clypeus, labrum, and tips of mandibles yellow ; antennae with 

 flagellum testaceous behind, long, reaching beyond the tegulge, joint 4 as 

 long as 2 + 3 ; disc of metathorax coarsely rugose ; apical margins of 

 abdominal segments testaceous; tarsi and tibi?e, except an oblong spot 

 along the centre, yellow. 



The female is distinguished by the broad head, the coarsely rugose 

 area of the metathorax, and the robust form. Collected on the cultivated 

 blackberry and rhubarb in June ; the males were taken in August on 

 Solidago. Mr. Henry L. Viereck has compared specimens of this species 

 with various types in the collection of the Academy of Natural Sciences 

 at Philadelphia. Professor Cockerell writes: "It is not a Smithian 

 species ; I do not know of any to which it is even closely allied." 



HaHctus planatus, v\. sp., $. — Length, 6 mm. -Head and thorax 

 green, abdomen black, pubescence sparse, whitish. Head nearly round, 

 slightly longer than broad, face very finely and closely punctured above 

 the insertion of the antennae, below the punctures are fewer and coarser ; 

 antennae black, flagellum testaceous behind. Mesothorax with very fine, 

 rathei; remote punctures ; metathorax narrowly truncate, disc with few fine 

 raised lines at the sides, in the centre nearly smooth except for a median 

 line. Wings hyaline, slightly darkened, stigma and nervures pale brown, 

 tegulae brown-black. Abdomen impunctate, apical segments clothed with 

 a thin whitish pubescence, margins not testaceous, or very narrowly so. 



Collected on willows, May 6-12, and on Aralia trifolia. May 21-23. 

 It differs from H. viridaUis in having the area of the metathorax much 

 smoother, the abdomen blacker, less convex, and the head and thorax 

 have a more bluish tinge. 



