rt2G FAMir.V XVI. — COCCIXEI.LID.-E. 



Iho spcciinciis sliduld he so iiioiuilcd tluit this can bo readily done. 

 For conNfineiicc tlic Indiana s[)C(M('s art^ iirst separated into two 

 ixroups. 



I'is. 191. (1, nietacnxil liiip;!', first veiitr.il siituro; c, liind ouxal cavity. (After Horn.) 



Ki:v TO (iiiDrrs of species of Indiana scymnus. 



(/. -Mctacd.K.nl line iiicoiupk'to, gradually eiirving into the first ventrtil sn- 

 tni'c and forming a part thereof, or not joining said suture. (Fig. 

 i;t4. Xos. 1, 2 and B.) Group .4. 



'/'/. Metaroxal line forming an entire arc beginning at the inner border of 

 the coxal cavity and ending at or near the outer front angle of the 

 first segment. (Fig. 194. No. 4.) Group B. 



Group A. 



'I'his gronp includes the Indiana species belonging to Groups 

 A. B and C of Horn's "'Studies in ('occinellidte." and in addition 

 a few that have since been described. 



KEY TO SPECIES OF GROUP A. 



(I. !Metai-oxal line passing in an oblique curve from the hind coxal cavity 

 to the first ventral suture and joining the latter. (Fig. T.)4. No. I.i 



b. Elytra piceous. each with two pale spots. 



e. Head and thorax yellow, the latter sometimes with piceous basal 



spot. 1004. LIEBECKI. 



cc. Head and thorax black: form oval; elytral spots small and oval. 



MYRMIDON. 



hi). Elytra piceous with a large yellow spot at apex. l)ut wifliout spots 

 on disk. 

 (/. Tlioi-ax black witli Ihe :i]iex narrowly, the front angles more broad- 

 ly yellow. l(X)r). TERMINATUS. 



il<l. 'riiipfax yellow with a I)]ack basal spot. lOOC. partitus. 



(/(/. .M('l;i((i,\,il line not jniiijng tlic first ventral suture. 



c. .Mefacoxal line exteiidiiig outward, parnllel with the suture and at a 



sli.ght distance thei-eti'om. (Fig. i;»4. .\o. 2.) 

 /. Elytra wliully r(>ddisli-bi-o\vn of dull hrnwTnsli yellow. 



KHIT. INTRISI s. 



/'/■. I'^lytra black or piceous. marked with yellow sjiots. 



!!. Each elytron with one rounded yellow spot l>ehind the middle; 



thorax black. l(M»s. flavifrons. 



f/(/. Each elytron witli twrt oval si)ots. orxati's. 



rr. Mefacoxal line I'eciuved ;il the outer end (Fig. 1!)4, No. :', ) ; elytra 



black, narrowly tiiiped with red: thorax witli black disk and red 



margins. UXM). .\MERK'ANrs. 



