370 FAMILY XI. STAPHYLINID^. 



d. Front of head without punctures. 



e. Margin of thorax distinctly flattened; color reddish-brown. 



705. SPELx^^l'S. 



re. Margin of thorax not flattened; color wholly or in great part 

 black or piceous. 

 f. Head broadly oval. 

 g. Second joint of antennas shorter than third; length 7- 

 11 mm. 706. fulqidus. 



gg. Second .ioint as long as third ; length 5-6 mm. 



707. SUBLIMBATUS. 



ff. Head elongate, as long as thorax. 708. peregrirus. 



(Id. Front of head with two punctures ; elytra very irregularly punc- 

 tured. 709. CAPDCINIT.«. 



cc. Hind tibise without spinules; form depressed; elytra without punc- 

 tures. 710. L^VIGAl'US. 



bh. Labrum entire, either curved or truncate. 



/(. Labrum broadly curved; eyes moderate in size; length 7-12 mm. 



711. MOLOCHIKl'S. 



7(7!. Labrum truncate ; eyes very large, prominent ; length 5-6 mm. 



712. HYPERBOEEl'S. 



uii. Tarsi above glabrous ; thorax with two discal punctures each side. 



i. Form slender; thorax with sides nearly parallel. 71:"!. fekox. 



ii. Form robust; thorax narrowed in front. 714. veknix. 



705 (2099). Quedius speLuEUS Horn, Trans. Amer. Ent. Soc, 1S71, 332. 



Elongate, rather slender. Uniform pale red- 

 dish or chestnut brown, the elytra sometimes 

 a little darker. Head oval, longer than wide; 

 eyes small, slightly oblique. Antennre reach- 

 ing base of thorax, the second .Ioint less than 

 one-half the length of third. Thorax broader 

 than long, slightly narrowed in front, sides 

 rcebly, base broadly curved; disk highly pol- 

 ished, with small punctures along the mar- 

 ,u:ins and liase, in addition to the dorsal rows. 

 I'^lytra narron-er than thorax, together as 

 wide as long ; closely and rather coarsely and 

 roughly punctate, sparsely pubescent. Ab- 

 „. ,„ ,„..,, ilomen narrower than elytra, parallel. Length 



log. 157. (Onginal.) -in ii ,t-,. --^v 



10-14 mm. (Fig. 157.) 



.Voiiroe, Lawroiu'i' aixl Crawford counties; frequent locally in 

 caves. April 15-No\-i'inber 6. Occurs in decaying organic matter, 

 usually the excrement of raccoons and other cave visiting verte- 

 brates, or beneath stones in tlie vicinity thereof. Although Cope 

 and Packard bolh refer to 1his a.s a "twilight species," all speci- 

 mens ta1<en wei-e in total darkness, tliose in Wyandotte Cave being 

 1 ,000 feet from the moulh. As the tejnperatnre of the eaves is ver^• 

 nuieh the same the year I'ound the 1)i\^tle probal)ly l)reeds at all 

 seas(ms, as the larv;v were always f(nmd with the adults. 



