1915] Chapin— Early Stales of Staphylinidae 157 



ment with a length five times its diameter and apically a spindle-shaped, fingerlike 

 process. Palpi; the first segment irregularly ovate, the second with a length five 

 times its diameter, the third as long as the second, the fourth one-fourth longer 

 than the third. Eyes holoptic. Mesonotum reddish brown, the suljmedian lines 

 yellowish. Scutellum and postscutellum yellowish brown. Abdomen rather 

 thickly haired, mostly dark brown, the incisures dorsally lighter, the venter darker, 

 the ovipositor pale yellowish. Wings strongly marked with dark brown and white 

 patches as follows; on the basal third of the third vein an irregularly, quadrangular, 

 whitish area slightly restricted distally on the third vein and divided by it; at the 

 distal fourth, between the third vein and costa, there are two irregular, transverse, 

 whitish bands, the outer one nearly broken and almost forming a V; caudad of the 

 third vein, near its distal fourth and nearly opposite the irregular, transverse bands 

 mentioned above, are two irregular, angulate, whitish spots close to the third vein; 

 along the fifth vein, near the middle and at its distal fourth, are two ill-defined 

 whitish, angulate areas extending on both sides of the vein; in the anal area there 

 is a lunate, whitish area extending from the fifth vein along its branch to the pos- 

 terior margin, and basally thereof, a pyrlform, whitish area; halteres whitish trans- 

 parent. Coxae reddish brown, femora dark straw; tibiae and tarsi mostly pale 

 straw, the distal tarsal segments darker; claws moderately stout, strongly curved, 

 simple, the pulvilli rudimentary. Ovipositor short, the terminal lobes sparsely 

 setose and narrowly oval. 

 Type: Cecid. 1597. 



EARLY STATES OF STAPH YLINID.E. 



I. XANTHOLINUS CEPHALUS SAY. 



By Edward A. Chapin, 

 New Haven, Connecticut. 



On July 24, 1914, while collecting larvje under the bark of decay- 

 ing Pinus rigida Mill., at Springfield, Mass., a number of Staphy- 

 linid larvae, of apparently the same species, were taken. These 

 larvffi were reared and the beetles identified as Xantholinus cephaliis 

 Say. Since that time I have taken the same species under the 

 bark of Castanea dentata (Marsh) Borkh., showing that the species 

 is not confined to Pinus. Hamilton (Canadian Ent., 1891, Vol. 

 23, p. 60) notes the species as occurring under bark at Allegheny, 

 Pa., and also under rubbish on the coast at Atlantic City, N. J. 



The rearing was done in plaster-of-Paris nests, modified slightly 

 from those designed and used by Janet ('98) for rearing ants, and 

 similar to those used by Dimmock ('04) in his work on the Cara- 

 bidse. Very little difficulty was experienced, the larvae feeding 



