8(5 Journal New York Ent. Soc. [Vol. ii. 



EXPLANATION OF PLATE L 



Fi"-. [. — Nest of V'l'spd sp. Portions of two envelopes cut away, showing the 

 innermost envelope in such position that it must be necessarily lorn away to 

 enlarge the nest. % natural size. 



Fig. 2. — Yellow cocoon of the first parasite /;/ situ, in a vespa cell. 



Fig. 3. — Yellow cocoon extracted. 



Fig. 4. — Longitudinal section of a yellow cocoon. Figs. 2 — 4 all natural size. 



Fig. z^. — Sphi'copkagus {!) piucdalor. $. x 5. 



Fig. 6. — The same. (5 . .\ 5. 



Fios. 7, S, 9. — Mandible and palpi of the same from the left side, x 30. 



Fig. 10. — Mflil/ohin sp. $. x 25. 



Fig. II. — Antenna of the same of the right side, x 75. 



Fig. 12. — .\ntennal club and succeeding joint of the same, showing the sensory 

 hairs and lengthened sensory cavities, x 250. 



Hf,''- '3- — l>ipterous puparium from abdominal cavity and cell of /.'.w/cr/z/f^A?. X5. 



NOTE ON PSEPHENUS LECONTEI Lee. 

 P>y Charles \V. Lenc;. 



'I'his l)eetle, which has been reportetl from Niagara Falls and 

 other rocky cataracts, lives also in more placid situations and much 

 nearer to us here in New York. I found it abundant on July 1st, 

 1893, at Echo or Macopin Lake near Newfoundland, a station on 

 the N. Y., Sustpichanna iV W. R. R. in Sussex Co., N. J. This lake 

 is an oval sheet of water, lying among the momitains and encircled 

 by forest, in which red-l)erried elder and the llowering rasi)berry 

 grow, and minks raise their families of young. 'J'he edge of the 

 lake is thickl}- strewn with fairly large boulders and its clear waters 

 admit of watching the animal life that clings to the rocks below 

 the water line. AVMiile thus watching 1 discovereil rsep/ie/ii/s Lccoiitri, 

 slowly walking over the submerged boulders and glistening like 

 silver from the air bubbles contained in its silky coverin.g of hair. 

 Sometimes the walk extended above the surface, but whether above 

 or below the beetles were easily alarmed and made off in short 

 llighls like Elaphrus or Jicinl'idiiim, demonstrating their indifference 

 to air, rock or water. 



The numbers in which they occurred were considerable and I 

 captured perhajis a dozen in a half hour. 



