STAPHYLINID/E. 25 



Oxypoda inimica n. sp. Stout, subparallel, convex anteriorly, feebly 

 shining except the more opaque elytra, the punctures fine, feebly asperu- 

 late and everywhere close, the vestiture rather long, not very decumbent 

 except on the abdomen; color blackish-piceous, the prothorax slightly 

 paler; abdomen luteous, the fourth tergite black, the legs pale; head 

 short and transverse, three-fifths as wide as the prothorax, the eyes 

 slightly prominent, at less than their own length from the base; antennae 

 long, gradually moderately incrassate, pale piceous-brown, the basal 

 joint paler, the third joint even somewhat longer than the second, fourth 

 small, as long as wide, fifth longer, the ninth slightly shorter than wide, 

 tenth as long as wide, the last rather longer than the two preceding, 

 gradually ogivally pointed, constricted at the middle on the posterior 

 side only; prothorax short, strongly transverse, the sides subparallel 

 and strongly .arcuate, the base rounded, the angles very obtuse, the 

 surface convex, almost unimpressed; elytra as wide as the prothorax and 

 nearly a third longer, subparallel, moderately transverse, the apical 

 sinuses distinct; abdomen broad, transversely convex posteriorly, not 

 quite aS|Wide as the elytra, parallel, narrowed but little at the fifth 

 tergite which is a third longer than the fourth; sixth segment large and 

 conical; middle coxae contiguous, the separating ridge laminate, the 

 hind tarsi with coarse spinules beneath, the first joint about as long 

 as the next three. Length 2.3 mm.; width 0.75 mm. Massachusetts, 

 Blanchard. 



This species and the next will form at least a subgenus of Oxypoda; 

 they have the well developed antennae of Group I, with the short 

 transverse subparallel prothorax of Group II, and are strikingly 

 distinct in appearance ; the anterior tarsi are 5-jointed without doubt. 



Oxypoda gnara n. sp. General form, coloration and sculpture nearly 

 as in the preceding but much smaller, less stout and more parallel, the 

 abdomen more indefinitely black through a larger median extent, the 

 punctures extremely fine and close throughout, especially on the ab- 

 domen, the vestiture very minute, dense and decumbent; head larger, 

 less transverse, more swollen basally and with smaller, less convex eyes 

 at more than their own length from the bfcse; antennae rather long, 

 blackish-piceous, paler basally, the second joint slightly longer and 

 thinner than the first and notably longer than the third, the fourth 

 distinctly, the fifth slightly, shorter than wide, the remaining joints 

 gradually moderately incrassate, the tenth slightly wider than long, the 

 last as in the preceding species; prothorax barely one-half wider than 

 long, rounded at base, the sides but slightly arcuate and just visibly 

 converging anteriorly, rounded basally, with an extremely minute and 

 faint, scarcely discoverable ante-scutellar impression as in the preceding; 

 elytra less transverse, parallel, slightly narrower than the feebly inflated 

 basal parts of the prothorax, the suture barely a third longer, the apical 

 sinuses deep; abdomen nearly as in the preceding but much narrower 

 and with less thickened margins basally. Length 1.8 mm.; width 0.48 

 mm. Rhode Island (Boston Neck.) 



