MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 351 



Remarks. — This species is unique in the genus by having fine ele- 

 vated lines marking the epistomal and coronal sutures. This con- 

 dition is known to occur among other Staphylinidae only in the sub- 

 family Tachyporinae and one or two other Paederinae. 



I have no record of the habits of this species. 



LI. Genus STAMNODERUS Sharp 

 Starrmoderus Shabp, 1886, p. 607. 



Genotype. — S. godmani Sharp (designated by Blackwelder, 1939). 



Dutgnosis. — l^ody moderately slender, strongly constricted; anten- 

 nae posteriorly flexile, not strongly geniculate, basal segment not 

 very much elongate, segments slender, swollen anteriorly toward 

 apex; eyes prominent; labrum large, produced at middle, without 

 denticles; fourth segment of maxillary palpus verj'^ small, subulate; 

 gular sutures united ; neck one-fifth as wide as head or less; prothorax 

 narrowly prolonged in front; prosternum carinate along middle 

 throughout, prolonged posteriorly between coxae and laterally be- 

 neath them, connate with edges of hypomera; hypomera not pro- 

 longed behind anterior coxal cavities which are entirely open behind 

 above but entirely closed by prosternal processes; front coxae very 

 large, exserted; middle coxal cavities confluent; posterior coxae con- 

 tiguous, "conical"; first and second abdominal sternites absent, third 

 carinate at base, seventh sometimes emarginate in male, eighth emar- 

 ginate in male; tarsi 5-segmented, fourth segment lobed beneath. 



Remarks. — This is one of the easiest of all our Paederini genera 

 to recognize because of its prolonged prothorax. It is known only 

 from temperate and tropical America. 



The record of Stariinodenis sallaei Sharp from Jamaica by Gowdey, 

 1926, is probably a misidentification. Until the specimens can be 

 reexamined, it must be regarded as a doubtful record. 



I have seen 151 examples of this genus and assign them to four 

 species, of which one is described as new. 



KEY TO WEST INDIAN SPEOIES OF STAMNODERUS 



1. Ciypeus smooth or at most with obsolete punctation 2. labeo 



Clypeus with distinct punctures or ground sculpture 2 



2. Punctation of head obsolete posteriorly 3 



Punctation of head distinct throughout 1. varians 



3. Coronal suture marked by a raised line 3. bernhaueri 



Coronal suture entirely unmarked 4. cameroni 



1. STAMNODERUS VARIANS Cameron 



Slnmnodems roriafifi Camkron, 1913, p. 335. — Lkng and Mutchler, 1917, p. 198. — 



SCHEEKPELTZ, 19o3, p. ]2.']7.— Bl.ACKWFJ DER. 1939a, p. 115. 



Description. — Piceous, apex of elytra and abdomen transparent 

 rufous. Head without trace of coronal or epistomal sutures; clypeus 



