66 MAINi; AGRICUI,TURAL EXPERIMENT STATION. I912. 



gg. Longer forceps not forked at apex. 



h. Hypopygium as shown in figure. (Fig. 42). 



II. nativa n. sp. 

 hh. Hypopygium as shown in figure. (Fig. 43). 



12. interriipta. 

 ee. Thorax, and abdomen largely, dark. 



f. Apex of limbs of one pair of forceps palmate with 

 setje, the other pair lobular (Fig. 44). 



13. palmata n. sp. 

 ff. Longer forceps with attenuated apices (Fig. 45). 



14. fungonim. 



dd. Fore metatarsus not more than i.i longer and sometimes 



shorter than tibia; hypopygium various. 



e. Lateral sclerite of hypopygium with bent or curved setse, 



appendages short (Fig. 37). 7. cincinnata n. sp. 



ee. Without bent setae. 



f. Limbs of one pair of forceps at least, over 1-3 as 

 broad as long, 

 g. Both pairs of forceps with oval limbs; (Fig. 46); 

 fore metatarsus about .9 as long as the tibia ; 

 cubitus forks very slightly distad of the base of 

 Rs. 15 . assidua n. sp. 



gg. One of the forceps with tapering apices; cubitus 

 forks-- noticeably distad of the base of Rs. 

 h. Thorax yellow with brown dorsum; one pair of 

 forceps oval but apex tapering (Fig. 47). 



16. aiixiliaria n. sp. 



hh. Thorax dark ; broader forceps with spatulate 



limbs each with 2 stout mesad projecting setae 



(Fig. 48). 17. bellula n. sp. 



ff. Both forceps rather slender, at least apically. 



g. Postero-ventral angles of hypopygial sclerite with 

 I to 3 strong setEC, or a blunt process, 

 h. A single blunt spine or process on each posterior 

 ventral angle, 

 i. A single long blunt spine on each postero- 

 ventral angle (Fig. 49s) ; thorax and abdomen 

 with yellow markings. 18. bella n. sp. 



ii. Postero-ventral angle produced into a slender 

 . blunt process ; thorax and abdomen dark. 



27. analis. 

 hh. One or more setse on the angles. 



i. Postero-lateral margins of hypopygial segment 

 ciliate (Fig. 50) ; pleura in part yellow. 



19. capfira n. sp. 

 ii. ]\Iargin not distinctly ciliate; pleura brown, 

 j. Postero-ventral angle each with a single seta; 

 the broader forceps without tuft of seta; 

 on the preapical angle; (Fig. 51b). 



20. absohita n. sp. 



