STAPHYLINID^;. 199 



base, not more than two-thirds as wide as the elytra and half as long, the 

 elytra large, longer than wide, not very convex; abdomen as usual in form, 

 pale red-brown; sixth ventral (9) broadly, rectilinearly truncate at apex; 

 male not at hand. Four specimens. New York (Long Island). 



The length of the body, with the abdomen greatly extended, is 

 nearly 4.5 mm. It is singular that LeConte seems to have had no 

 example of this distinct species among his material in drawing up 

 his revisional statement of Palaminus (Proc. Am. Phil. Soc., XVII, 

 1878, p. 396). 



Of the new species above described, timidus seems to be more 

 closely allied to pumilus than to any other as yet described, but it 

 is larger and differs in the sexual characters, the male having a 

 prominent abdominal ligula and the sixth ventral of the female 

 being truncate and not rounded. Luteus may be allied to normalis, 

 but the male characters differ, if properly described by LeConte, 

 the sixth ventral in normalis being deeply biincised, with the inter- 

 mediate lobe broad and truncate. Invidns appears to be allied to 

 parvulus Shp., from Jalapa, Mexico, but the head is not narrower 

 than the prothorax, as it is described in that species, but rather 

 wider, and it seems to differ besides in its sparser punctuation; 

 from deformis and chiriquensis it seems to differ in its less transverse 

 prothorax and sparser sculpture. Of flavipes I obtained a single 

 example at Vicksburg, Mississippi, and of larvalis, one at Fort 

 Monroe, Virginia, which agrees very well with another taken by 

 Wickham at Houston, Texas. 



The following Central American species apparently differ in every 

 case from any made known by Dr. Sharp in the "Biologia": 



Palaminus isthmianus n. sp. Very elongate, pale brownish-testaceous, 

 the abdomen darker, red-brown; elytra with a small, feeble and evanescent 

 piceous cloud on the suture from before the middle nearly to the apex; head 

 slightly wider than the prothorax, coarsely and loosely punctate, the last 

 antennal joint much longer and wider than the tenth; prothorax barely a 

 fourth wider than long, strongly but sparsely punctate, the sides strongly 

 converging from apex to base and broadly arcuate; elytra fully two-fifths 

 wider than the prothorax and nearly twice as long, longer than wide, strongly 

 but sparsely punctate; female with the sixth ventral broadly and feebly 

 sinuato-truncate at apex, the male wanting. Length (much extended) 4.3- 

 4.7 mm.; width 0.6 mm. Isthmus of Panama (Colon). 



This species seems to be allied to debilis Shp., but is larger and 

 with a shorter terminal joint of the antennae. The sides of the body 



