MEXICAN UYMENOrTERA. 31 



tliorax black, collar, upper and lower margins of ])rothorax, the former 

 interrupted in front, two interrupted longitudinal lines on disk of me- 

 sothorax, line over tegulae, two oblique lines behind, margins of scutel- 

 lum, base of metathorax, flanks, and two large spots at tip, and the 

 pleura except two spots beneath wings, white ; wings hyaline, slightly 

 yellowish, iridescent, nervures brown, stigma yellow ; legs pale ful- 

 vous, coxj>3 and trochanters whitish, basal half of posterior tibiae and 

 their tarsi, yellowish, tips of posterior coxae, of their femora and of all 

 the tarsi, black ; abdomen above black, base and apex of first and 

 apical margins of the three following segments, yellowish-white, fifth 

 and following segments fulvous, beneath tinged with orange. Form 

 and sculpture same as in egregia, except that the antennfc are as long 

 as the body, more slender, the scutellum less elevated at base, and the 

 upper surface of abdomen is longitudinally and finely aciculate. Length 

 42 lines. 



% . — Differs from 9 as follows : — The pale markings more yellowish ; 

 the antennae brown above, without annulus, testaceous beneath with 

 the scape yellowish ; the third, fourth and fifth abdominal segments 

 above with a lateral yellowish spot instead of a band, and the two fol- 

 lowing segments entirely black instead of fulvous. Length 4 lines. 



Two (S 9) specimens. (Sumichrast Coll. No. 83.) This is con- 

 generic with egregia. 



5. Joppa Sumichrasti, n. sp. 



% 9 . — Bright lemon-yellow ; spot on vertex covering ocelli and 

 confluent with a broad baud from eye to eye, tips of mandibles, an- 

 tennae except scape beneath, spot before tegulae, three broad stripes on 

 mesothorax, posterior half of tegulte, spot at base and at tip of scu- 

 tellum, postscutellum. two moderately large subbasal spots on metathorax 

 above, often surrounded by from two to six small spots or dots, ex- 

 treme base of posterior tibiae, all the tarsi more or less, the fourth and 

 following segments of abdomen, and base of the three basal seg- 

 ments more or less, black ; sometimes the second and third segments 

 have merely a median black spot at base, that on the second sometimes 

 wanting, leaving the first and second segments immaculate; the sides 

 of the fourth segment are often more or less yellow ; wings yellow- 

 hyaline, sometimes tinged with dusky, the apex of both pair, more or 

 less, and a spot before the middle, sometimes much reduced, and some- 

 times obsolete on posterior wings, blackish. Head large, buccate ; an- 

 tennjie rather short, slender in 9 , dilated near tips in % ; scutellum 

 subconvex, carinate laterally; metathorax rugulose, large black spots 



