36 THE ENTOMOLOGIST. 



4. Abdomen green, covered with short pubescence . pUosa, Sm. 

 Abdomen fulvous ; scape long and slender . . 5. 



5. Face narrow ; legs without black .... idalia, Sm. 

 Face broad ; legs with much black . . . nigrofemorata, Sm. 



6. Hind margins of abdominal segments 1 and 2 regu- 



larly ciliate (vibrissate) with orange hairs ; metal- 

 lic colours of face bluish-green and purple . . vivax, Sm. 

 Hind margins of abdominal segments 1 and 2 not 



ciliate ........ 7. 



7. Abdomen thinly pruinose with pale pubescence ; cly- 



peus and supraclypeal area strongly suffused with 



crimson ....... cuprifrons, Sm. 



Abdomen not thus pruinose ; face brilliant golden- 

 green, vextex purplish ..... 8. 



8. Larger ; tegula3 dark ..... janthina, Sm. 

 Smaller; tegulaa ferruginous .... calliope, Sm., ms. 



The following notes, additional to the table, will serve to 

 confirm identifications made by it : — 



(1.) M. bituberculata, Sm. $ (T.). — Face narrow ; ocelli large ; 

 wings hairy ; hind spur microscopically ciliate (but probably 

 spined in the $ , which I have not seen); first r.n. joins second s.m. 

 well before its end ; third s. m. very large, about as large as 

 first. 



(2.) M. janthina, Sm. — Ocelli only moderate; wings hairy; 

 stigma large ; both r. n. received by third s. m. (near base and 

 apex), which is not nearly so large as first. 



(3.) M.purpurata, Sm. (T.). — Ocelli large; first r. n. joining 

 second t. c. ; third s. m. not nearly as long as first. 



(4.) M. cuprifrons, Sm. (T.). — Wings hyaline, not at all orange, 

 but costa and marginal cell fuliginous ; first r. n. joining second 

 t. c. ; second r. n. entering third s. m. farther from its end than 

 in janthina (in janthina almost at its end); ocelli moderate; first 

 abdominal segment with very numerous large strong punctures. 



(5.) M. vivax, Sm. (T.). — Ocelli moderate; wings dusky 

 hyaline, not yellowish or dark on costa ; first r. n. joining third 

 s. m. at its extreme base ; second r. n. joining third s. m. as in 

 ciqirifrons. 



(6.) M.ornata, Sm. (T.). — Bright green, face splendid crim- 

 son ; ocelli fairly large ; thorax with very large punctures, 

 becoming subcancellate ; hind spur with numerous (6 or 7) long 

 spines ; first r. n. meeting second t. c. on the basal side. 



(7.) M. pilosa, Sm. (T.). — Hind spur with long spines; first 

 r. n. joining second t. c. 



(8.) M. nigrofemorata, Sm. (T.).— Ocelli rather large ; wings 

 hairy ; first r. n. meeting second t. c. ; second r. n. joining third 

 s. m. almost at its end. 



(9.) M. idalia, Sm. (T.). — Hind spur with few long spines; 

 first r. n. joining second s. m. near its end. 



