176 NEMATUS B1PARTITUS. 



N. pavidus, Lep., with which it has no connection. 

 The larva is unknown. 



The only specimens that I have seen of albipennis 

 were taken by Dr. Sharp at Dairy, Galloway. 



Continental distribution : Sweden, Germany, Hol- 

 land, Russia, Italy, Switzerland, Dalmatia. 



85. NEMATUS BIPAETITUS. 

 PL XXY, fig. 4, Saw. 



Nematus bipartitus, Lep., Mon., 69, 206 ; Ste., 111., vii, 32, 21. 

 ocliropus, Thorns., Opus., 617, 6 ; Hym. IScand., i, 89, 

 10; Br. and Zad., Schr. Ges. 

 Konig., xxiv, 321, 66. 



Luteous, the antennaB in part, the head except the mouth and a broad 

 band surrounding the eyes (broadest behind), the greater part of the 

 mesothorax, the metathorax in the middle, the pleurae in part, and the 

 sheath of the saw, black. Antennae nearly as long as the body, thin, 

 filiform, the third and fourth joints about equal, the remaining joints 

 becoming gradually shorter ; the two basal joints are entirely black, 

 the succeeding seven joints are black above, luteous beneath, the last 

 joint being entirely of that colour. Vertex thick, the sutures well 

 marked, the front broadly projecting; scutellum raised, distinctly 

 punctured; mesonotum minutely punctured. Abdomen somewhat 

 inflated in the middle ; cerci long, pointing outwardly ; sheath of saw 

 projecting, densely covered with longish hairs. "Wings hyaline, irides- 

 cent, with a faint yellowish tinge, the first transverse cubital nervure is 

 rather indistinct; the third cellule is one-fourth longer than broad, 

 widened at the apex ; the second recurrent nervure is received consi- 

 derably in front of the second transverse cubital ; the costa dark testa- 

 ceous, stigma yellowish-testaceous. The tibiae are distinctly grooved, 

 the apex of the posterior and the posterior tarsi are marked with black ; 

 the calcaria short, scarcely one-fourth the length of the metatarsus ; 

 the claws are bifid. $ and <^. 



Length 2f lines. 



Apart from the differences in coloration, bipar- 

 titus is readily separated from N. vesicator by its 

 much longer and thinner spurs, and larger and thinner 

 antennas. It agrees in its punctured scutellum and 

 coloration with N. albipennis^ but its antennas are 

 longer, thinner, and luteous beneath, its body is nar- 



