NO. 13 



STAPH YLINIDAE BLACKWELDER 



61 



The maxillae present a rather large amount of variation in form 

 and of modification from the typical arrangement of parts. The typical 

 form has been described for Crcophilus (fig. 2 G). 



Fig. 17. — Intrafamily variation in the maxillae and the maxillary palpi. 



A, musculature of maxilla of Thinapinns pictus Lee. B, palpus of Gastroln- 

 bium bicolor (Grav.). C, maxilla of Hypocyptus longlcornis (Payk.). D, 

 maxilla of Pinophilus parznpennis Csy. E, maxilla of Osorius iiiuihIiis Slip. 

 F, palpus of Stcnus sculptilis Csy. G, palpus of Baryodma bimaculata Grav. 

 H, palpus of Acylophoriis flavicollis Sachse. I, palpus of MicropcpJus punctatus 

 Lee. J, palpus of Pclccoinalium tesfaccuni (Mann.). K, palpus of Pacdcrus 

 Jactus Er. 



The relative sizes of the cardo, stipes, galea, and lacinia are subject 

 to much variation. The subfamily Staphylininae is very homogeneous, 

 there being little variation in any parts from Crcophilus and Thino- 

 piniis (fig. 17 A). In some species the lacinia is more elongate and 



