THE SAP-FEEDlN(i UKK'I'LKS. 649 



;,!,([ aiiioiii:' tlifiii ;ii-(' (iiic (II- two of Itif nil. si coiiiiiKUi ;iii(l hcsl kiniwii 



species ol' t lie I'jiinily. Six species iii'c lislcd I'l' the I 'niled States, 



I'diir ol' which (icciir in I mli;iii;i. 



KEY TO INDIANA SPKCIKS OK IPS. 



(/. 'I'li(ir:ix brojuler nt l>:ise tliaii iipox ; hind tiirsi nearly as ln-oadly dilaled 



as t licse ill I'roiil. 



b. Larger, leugtli S (tr more uiiii. : middle and liind tihito of males siul- 



donly broader at apical hall". 3 250. obtisis. 



bb. Smaller, Icnu'tli iKit (i\ er 7 mm.; middle and liiiid tibia' not dift'crcnt 



in t lie sexes. 



c. r.edy wluilly black beneath. 1251. quadkiguttatls. 



cc Abib.men and mel.isternum red. 12r)2. sanguinolkntis. 



(/(/. TlKirax narniwcr at base; hind tarsi slender; elytra with large dull 



yellowish sjiact' eiiclcsing l)lack spots. 12r>;!. confluentls. 



12r)0 (375.")). les onri si ,s Say. IJcst. .lourn. Nat. Hist., I, 18o5, 158; ibid. 

 II. G44. 



Oblong-oval, subcoiivex. Piceons black, shining; elytra each with two 

 rounded, reihlish-yellow sjiots, one at middle of base, the other slightly be- 

 himl the nuddle. Entire upper surface rather finely and reguhirly ])nnc- 

 tured. Tips of elytra slightly oblique in both sexes. Length S-12 nun. 



Vi<;-() and Floyd counties; rare. May ii-Septeniher 29. Occurs 

 in the middle and soutlier'ii Athuitic Slat(^s. 



*]251 (3756). IPS quaduiguttatus Fab., Syst. Eleut.. II. IsOl, 5S0. 



Oblong-oval, subcouvex. Elaelc or piceous. 

 shining; elytra usually with broad, irregular yel- 

 lowish humeral sjiot and another smallei- one be- 

 hind the nuddle, these often reduced and vary- 

 ing much in size, becoming at times mere yel- 

 low points. Tipper surface tinely and sparsely 

 punctured. Tips of male elytra obli(pie; thuse 

 of female rounded. Length 4-7 mm. (.Fig. 1*4.".. ) 



Throu.uhniil the State ; coinmon. Hiber- 

 nates beni^ath loiis. cliips. etc. Hundreds 

 sometimes accunuilale in a small space at 



P , , , ■, 1 -I < o I''ig- 24:i. X 7. (After Forbes.) 



sap ot oak or mai)le. February 14-Sep- 



tember 22. Listed as /. fasciatiis but the name here liiven has 



priority. 



1252 (3757). Ips sanguinolentus Oliv., Fut., II. 1791, 8. 



Oblong-oval. Black, shining; elytra in great part bright red; the tip, 

 a small humeral and larger round discal spot black; abdomen red. Tips 

 of elytra of the two sexes as in the ])receding. Length 4.5 5.5 mm. 



Lake. \'ii;(». I'nln.aiii. Crawford and I'osey counties; scarce. 

 IMarcli 20-Sep1cmber 22. Taken at sap and on decaying fleshy 

 i'uuffi. 



