]8 BUL LETIN OF THE BROOKLYN KNT. SOC. 



matter will fall into the outer bag, and can be examined whenever 

 convenient. In this manner I have captured many interesting 

 species : StaphiUnidae, Trichopterygidae, Pselaphidae, Lathridiidae, 

 NitiduUdae, which by no other means would have come under ob- 

 servation. The best time for this kind of collecting is in winter, 

 when no snow is on the ground, and late in fall, but may also be 

 employed at any time of the year with good results. On warm 

 pleasant days towards the close of winter (end of February and 

 March), searching under stones will prove very successful, as the 

 insects which have passed the winter in torpid state in the earth 

 under stones, will now come to the surface. Good places are the 

 sides of hills sloping towards the East. An excellent locality in 

 ih is neighbourhood is the chain of hills on the right bank of the 

 Hudson River (the first slopes of the Pallisades), in the rear of Jer- 

 sey City and Hoboken. The foot of these hills, which are bordered 

 by swamps, is especially rich in insect life at this season, and 

 nearly every stone which is upturned discloses a little colony of 

 them. This is the only locality about New York where Oodssfht- 

 vialis Lee, americamts Dej., amaroides Dej., Diplochila laticollis 

 Lee. and Chlaenius niger Rand are found, not to mention the mul- 

 titudes of other Carabidae, Staphilinidae, Hydrophilidae etc. which 

 there abound. But later in spring these places are entirely de- 

 serted. 



(To be continued.) 



ON COLEOPTEROUS LARVAE OF THE FAMILY 

 TENEBRIONIDAE. 



During the months of May and June 1877 numerous live spe- 

 cimens of Tenebrionidae were sent to me by mail from Monterey 

 Co., California. They comprised several species of the genera 

 Asida and Eieodes, the former of which died after a few weeks, but 

 the latter I have still caged (May 1878). In October I noticed the 

 first eggs in the cage of Eieodes gigantea. The chorion of the 

 o.gg is a structureless elastic membrane, its color milk-white and 

 its form oval elongate 



Length: 0. 8 mm. breadth: 0. 35 mm. To find out the medium in 

 which to incubate them was a matter of great difficulty, since, 

 when kept dry, they dried and shrunk, or when kept damp, they 

 were destroyed by a mould. 



November 20th 1877 I noticed the first larvae. After about 10th 

 of December 1877 no more larvae appeared even under the most 

 favorable circumstances. The few individuals thus obtainel de- 

 voured each other* or gradually died before they reached the 

 length of a few millimeters. 



* I often noticed that larvae of Tenebrio obecurus eat their chrvsalids. 



