^C)2 FAMILY XI. STAPHYLlNIDiE. 



KEY TO INDIANA SPECIES OF OXYPODA. 



(/. r.arirfr, S-o.2 mm. ; dark brown, elytra and legs paler. 



688. SAGULATA. 



(la. Smaller, not over 2.5 mm. 



&. Thorax subparallel and curved at the sides, the apex almost as wide 

 as the base, the latter as wide as the base of elytra. 



c. Dull brownish-yellow ; abdomen plceous, pale at tip, distinctly 



tai>ering from base to apex. 689. amica. 



cc. Keddish-brown ; abdomen with only the fourth and fifth dorsal seg- 

 ments piceous. its sides nearly parallel. 690. palustkis. 

 Jth. Thorax subconical or with the apex distinctly narrower than base. 



d. Body rather slender; abdomen feebly tapering from base to apex; 



color chestnut brown. 691. ohliqua. 



(Id. Body linear ; abdomen straight and nearly parallel ; color brownish- 

 yellow. 692. PERExn,is. 



CSS (2062). OxYPonA sagt^lata Ei-ieli.. Gen. Sp. Staph., 1S40, 146. 



Elongate, rather robust. Dark brown to piceous. spai'sely clothed with 

 fine yellowish hairs; elytra reddish-brown; legs and basal joints of anteumr 

 pale yellow. AntennjTe reaching base of thorax, the second .ioint slightly 

 longer than third. Thorax one-half wider than long, the base as broad as 

 the elytra, sides moderately curved; angles rounded, the front ones de- 

 tlexed; disk finely and rather closely punctate. Elytra one-third longer 

 than thorax, more coarsely and densely punctate. Abdomen at base slightly 

 narrower than elytra, distinctly tapering behind the middle, densely punc- 

 tate, the first two segments impressed at base. Length 3-3.2 mm. 



'I'hroughont the State; scarce. May 18-October 31. Taken In- 

 sifting. 



CS!) ( ). OxYPODA AMICA Casey. Trans. Acad. Sci. St. L., XVT, 1006, 312. 



Elongate, subfusiform. Dull brownish-yellow, clothed with rather long, 

 shaggy pubescence; head and abdomen piceous. the latter pale at tip; an- 

 tenna^ fuscous, the basal joints and legs pale. Antennjie reaching to basal 

 third of elytra, the second joint one-third longer than third. Thorax three- 

 fourths wider than long, sides strongly curved, surface, as well as that of 

 elytra and abdomen, very finely and rather closel.v punctate. Elytra about 

 two-fifths longer than thorax. Abdomen at base one-third narrower than 

 (>lytra'. thence feebl.v tai>ering to apex, the first three dorsal segments deeply 

 imiiressed at base. Length 2-2.2 mm. 



Tlii'dugliout tlio State; one of the most common mcmhers of the 

 snl)family. -lannary 18-T)eceml)er S. Taken by sifting vegetaWe 

 (h'l)ris in h)w. moist woods. TTibenuitc^s beneath mnllein leaves, bot- 

 tom I'ails (vF fences and otbei" cover. 



coo ( — ■ — ). OxvPODA PAT.isruis s]). nov. 



Itadicr sOiiit. subrusifdrni. I»;ii-k rcddisb-lirdw n. sliining. sparsely and 

 liiH'ly piilicscciil : head, elylr;i and rdiiith and lil'lli dorsal segments of ;\h 

 doiiicn pic(>ous. .\nlenii;c re.-icliing middle of elyli-a. second and third joints 



