BULLETIN OF THE BROOKLYN ENT. SOC. 



43 



and situated at the sides of the abdominal segments 2-8. 



One of the notable characters of the larva is the fact that the 

 mouth is very small, the only opening being that from which the 

 mentum arises, the sides of the gula around the mentum and the 

 maxillae forming a close union with the upper portion of the head. 



a. Head, above. 



b. Head, beneath. 

 e. Front. 



d. Antenna. 



e. \ Maxilla- 



/• 



Mentum. 



Appendix. 



Leg. 



f b 



Larva of Staphilinus raaculoms. 

 When the larva is full grown, it builds a nest of grass and earth 

 under stones, boards, etc., and forms a pupa covered by a brown 

 shining chitin, like that of the moths, but greatly differing by its 

 flattened shape ; after fifteen days the pupa becomes darker ptie 

 the 17th day the imago develops, being first pale-brown, but 

 coloring fully after two days. 



Larva found. 

 Aug. 3th. 

 Aug. 14th. 



Pupa. 

 Aug. 19th. 

 Aug. 15th. 



Imago. 

 Sept. 6th. 

 Sept. 1st. 



LARVA OF DIC^JLUS ELONGATTJS, Dej. 



This larva resembles very much that of Dicaelus dilatatus, de- 

 scribed in No. 1 of our Bulletin, and that described by Dr. Horn 

 (Trans. Am. Ent. Soc, Vol. VII., p 37), but differs by its smaller 

 size, 17 mm., and by having head, legs, and fork-like appendage 

 of last segment rufous ; the middle part of the first antennal joint 

 and the tips of the three others are transparent, whitish-yellow, 

 and the dark parts are furnished with short hairs ; the tip of the, 

 first maxillar joint is furnished on the inner side with a small 

 spine ; the black scutes of the dorsal abdominal segments are 

 narrower than those of dilatatus, so that the larva shows much 

 more white ; the larger transverse plates of the ventral segments 

 are formed somewhat differently. 



