88 BULLETIN OF THE BROOKLYN EXT. SOC. 



Description of the Laivae of Pterostichus lucublandus and 



Pt. mutus, Say. 



By F. (t. Schaotp. 



Length of larva, 12 mm, 



Form stout, elongate. 



Color above brown, beneath light dirty gray, head and thorax 

 shining, mouthparts and legs pale yellow. 



Head subquadrate, slightly narrower at apex than at base, sides 

 almost parallel, angles rounded. 



Eyes like those of Platynus. 



Antenna 3 four-jointed, longer than the head or the max'illse, basal 

 joint longest, with a tooth near the apex at the inner side ; second 

 joint half as long, rather stouter at apex ; third nearly as long as the 

 first, near the apex on the outside furnished with a small bud-like 

 process, with short, stout bristles at tip ; the fourth about as long as 

 the second, but much more slender. 



Mandibles slightly arcuate, with a tooth near the middle. 



Maxdllce, the long cardinal piece thicker at apex than at base, the 

 palpus four-jointed, first joint very short, stout ; second twice as long 

 but more slender ; third one-third longer than the second ; fourth 

 one-half the length of the third, very slender ; lobe two-jointed, joints 

 nearly equal in length, but basal much stouter. 



Mention bi-lobed, broadest before the apex, angles rounded, sup- 

 porting the ligula with the lobes, the first joint of which is long and 

 stout, the second short and slender, the median terminal prolongation 

 between the lobes with one bristle. 



Prothorar sub-quadrate, somewhat broader than the head, broader 

 than long, sides nearly parallel, with ante-basal and ante-apical trans- 

 verse lines ; median longitudinal line distinct. 



Mesothbtax transverse, shorter but just as broad as pro thorax, with 

 a faint ante-apical emargination ; an impressed puncture on both 

 sides of the scutes and a median longitudinal line. 



Metathorax similar, but the ante-apical emargination is obliterated. 



Abdominal segments furnished with three bristles at the sides, 

 transverse oval gradually decreasing in width ; the eighth is rather 

 suddenly narrowed ; the ninth forms a tubular narrowly annulate 

 appendage, beset with short stiff bristles ; above two long slender 

 lateral appendages also beset with bristles. 



Spiracles as in Dicadus, also the scutes beneath. 



