12 ENTOMOLOGICAL NEWS. [ Jan., 'l8 



As the examination progressed the specimens were arrang- 

 ed in the following groups with definitions : 



1. Prosternal process longer, horizontal, finely and sparsely punc- 



tate, very feebly narrowed between the coxae, distinctly mar- 

 gined at the sides and obsoletely so at the tip, the latter 

 evenly rounded, i $ and 2 9 9 . 



2. Process just the least convex longitudinally, sparsely punctate, 



scarcely narrowed between the coxae, distinctly margined 

 throughout; surface distinctly and transversely convex be- 

 tween the marginal snlci, tip evenly rounded, i 9 . 



3. Process shorter, deeply margined throughout, sparsely, finely 



and distinctly punctate, longitudinally impressed at middle be- 

 tween the coxae; surface convex behind the impression; tip 

 broadly rounded, narrowed between the coxae as in Group I. 

 i 9. 



4. As in Group 2, but the process is shorter, strongly and more 



densely punctulate. I 9 . 



5. Process feebly narrowed between the coxae, distinctly convex 



longitudinally and noticeably prominent between the coxae, 

 otherwise as in Group I. I $. 



6. Process not impressed, longitudinally convex; surface convex from 



side to side between the marginal sulci. Otherwise as in 

 Group 3. i 9 . 



7. Process longitudinally convex between the coxae, becoming con- 



cave behind the coxae, tip gradually deflexed ventrad. Other- 

 wise as in Group 3. I $ . 



8. Process shorter yet, just the least convex both ways, strongly 



margined at the sides, no evidence of a bead at tip; the latter 

 broadly and less strongly rounded. 3 $ $ . 



g. Process distinctly narrowed between the coxae. Otherwise as in 

 Group 2. i 9 . 



10. Process longer, margin obsolete at tip. Otherwise as in Groups 



3 and 7. i 9. 



11. As in Group 3, except that the process is longitudinally convex, 



flat from side to 'side between the marginal sulci, marginal 

 bead feeble laterally and obsolete at tip. 39 9 



12. Process longitudinally convex, not marginal at tip; surface flat 



transversely between the marginal sulci. Otherwise as in 

 Group 2. i 9 . 



13. As in Group 11. except that the process is strongly margined 



throughout, narrowed between the coxae and with the tip 

 more strongly dilated. 699. 



The taxonomical value of the characters presented by the 

 prosternal process is self-evident. 



