74 



ILLINOIS BIOLOGICAL MONOGRAPHS 



[74 



EXPLANATION OF PLATE XI 



VE^fTRAL ASPECT OF THE HEAD 



Fig. 214. Heticlius striatus. 



Fig. 215. Stenelmis simi-ata. 



Fig. 216. Heterocerus undatus. 



Fig. 217. Georyssus catifornkus. 



Fig. 218. Eurypogon niger. 



Fig. 219. Eucinetiis morio. 



Fig. 220. Cyplion ruficollis. 



Fig. 221. Chelonarium errans. 



Fig. 222. Dermestes lardarius. 



Fig. 223. Byrrhus americanus. 



Fig. 224. Nosodendron unicolor. 



Fig. 225. Rhysodes americanus. 



Fig. 226. Tenebroides sinualus. 



Fig. 227. Phenolia grossa. 



Fig. 228. Glischrochilus fasciatus. 



Fig. 229. Rhizophagiis bipunctalus. 



Fig. 230. Phyconomus marinus. 



Fig. 231. Cucujus davipcs. 



Fig. 232. Hcmipeplus marginipennis. 



Fig. 233. Languria mozardi. 



Fig. 234. Megalodacne fasciala. 



Fig. 235. Derodonlus maculalus. 



antacoila 



antafossa 

 ccp cervepimeron 

 CCS cervepisternum 

 cct cervisternum 

 ce compound eye 

 ea epicranial arm 



gula 



line of invagination 

 I labrum 

 mn metatentorina 



of 



inl 



