BULLETIN OF THE BROOKLYN ENT. SOC. 71 



I took for the larvae of Clinidium, but Dr. Horn to whom I sent 

 some specimens, thinks they were those of Lebia. All died. 



2, Aug. 3. I found the first larva of what proved afterwards to 

 be Staphilinus maculosus, under a stone (pupa Aug. 19., Imago 

 Sept. 6.) see Bull. p. 42. 



Larvae of the same species were found under stones and pieces 

 of wood at the following dates. 

 Aug. 3., died in the larval state Sept. 2. 



" 3., transformed into pupa Aug. 21 ; imago developed Sept. 7. 



" 14., died as larva Sept, 2. 



•' 14.', transformed into pupa Aug. 19., put in Alcohol. 



" 14., " '• " " 15; imago developed Sept. 1. 



" 19., " " " Sept, 1., put in Alcohol, 



" 20., " " " Aug. 23., died Sept. 10. 



The larvae lay hidden always, but when presented with food 

 they seize and suck it very quickly. They were fed with soft 

 wood-boring larvae, tiies, caterpillars and during a few rainy days 

 with ants-pupae ; but they prefered the soft, milky larvae of col- 

 eoptera to any other food.— They were the most rapacious creatures. 

 A notice in W. R. Erichson's Contributions to a Systematic Know- 

 ledge on Larvae of Insects stating that the larvae of the carnivor- 

 ous coleoptera have two claws, puzzled me about these larvae as 

 that of Staphilinus maculosus as well as that of Leistotrophus 

 cingulatus has but one claw. 



3, Aug. 15. I found two larvae of a very similar appearance to 

 the above, but about half the size, one of them died Aug. 21., the 

 other transformed into a pupa Aug. 26., (at night) the imago de- 

 veloped Sept. 5. and proved to be Leistotrophus cingulatus. 

 Aug. 17. larva found, died Aug. 21. 



17. another found, transformed into pupa Aug. 22., was 

 eaten by a mouse. 

 " 19. another, which escaped Aug. 21. 

 •' 2H. " moulted at noon Sept. 2. 



" 24. " died Aug. 25. 

 They were treated in the same manner as were the above. 



4, Aug. 7. 1 found under stones near the border of a wood a 

 larva much resembling that of Dicaelus dilatatus, which I had 

 raised the previous year, but much smaller, and but slightly dif- 



