ENTOMOLOGICAL SECTION. 



Fig. 1. — s, surface 

 of ground. aScc?, silk- 

 lined funnel. 



trated in the mandibles of Pasimachus and other coleoptera as well as 

 in other members of the body exposed to wear. 



Mr. McCook exhibited the nest (Fig. 2), of a Lycosid spider which 

 is probably a new species of the genus Tarentula. It was discovered 

 July 26, 1878, on the grounds of Mrs. Mary Treat, at Viaeland, N. J., 

 and being carefully dug up was successfully trans- 

 ported and added to his collection of Insect archi- 

 tecture. It is a tube about 7 2 inches deep, re- 

 sembling an ear-trumpet (Fig. 1), with the mouth 

 upward. It is bent at an angle of 60° shortly 

 below the surface ; the upper part is a silk-lined 

 funnel, that widens outwardly to the margin, 

 which at the highest point is IJ inches above 

 the surface of the ground. The silken lining 

 extends but a little way below the surface. The projecting funnel is 

 composed of blades of grass (Fig. 2), which are bent down upon 



their stalks from ail 

 sides, overlaid, and 

 rudely interwoven, mak- 

 ing thus a background 

 upon which the smooth 

 silken lining is placed. 

 The longest diameter of 

 the mouth of the tube 

 (Fig. 1), ah, is \h inch, 

 the shorter diameter cd, 

 is 1 J inch. The diame- 

 ter of the tunnel below 

 Fig, 2. — Nest of Tarentula tigrina (?). the surface is f inch. 



The 9 found with this nest is a large example, 1 inch long, of a dark 

 purplish-brown color, marked across the abdomen with yellowish bars, 

 having on the legs and palpi annuli of the same color. The species 

 was provisionally named Tarentula ti(jrina, and further description 

 reserved. 



Dr. Horn called attention to several coleoptera, as follows: 

 Cantharis deserticola Horn, originally described from a 9 was sup- 

 posed to belong to the group with the antennae similar in the sexes. 

 A male recently received proved to have the antennae thickened in 

 the middle, it therefore belongs to '' Group 1" and most closely allied 

 to C. tenehrosa Lee, but abundantly distinct by color and sculpture. 



