368 C. R. OSTEN SACKEN'S PRODROME 



4. Pangonia chrysocoma u. sp. 



Antennas rerlflisli ; proboscis very short; wings, brownisli anteiiorly, hynline at the root and posteriorly. 

 $ . Thorax and abdomen dark brown, the latter with the hind margins of tlie segments yellowish and be- 

 set with golden-yellow hairs. 



? . Thorax and abdomen pale yellow, clothed with an appressed, shining, golden-yellow pubescence. 

 Length, ,* 10 mm.; ? 14 mm. 



3/aIe. Antennas reddish, two basal joints beset with long, black hair; face brownish, 

 clothed with yellowish-brown jwllen. Thorax blackish-brown, with a yellowish pubescence; 

 pleurae grayish-pollinose. Abdomen blackish-brown, with narrow yellow bands, clothed 

 with a golden-yellow pubescence, along the incisures of the segments. Legs reddish-yellow, 

 tips of tarsi brownish. "Wings : root hyaline, with pallid veins ; a brown cloud occupies 

 the proximal and anterior part of the wings, fdling the two basal, the marginal, the greater 

 portion of the first submarginal, and the proximal half of the first posterior cells ; also inva- 

 ding the proximal ends of the discal and the fifth posterior cells ; anal angle and anal cell 

 also tinged with brown in the middle ; costal cell and stigma brownish-ferruginous ; second 

 SLilnnarginal cell grayish ; the remainder of the wing, between the ends of the third and 

 fifth veins, along the hind margin, including the larger portion of the discal cell, hyaline. 



Female. Head pale yellow, opaque ; front very broad, broader anteriorly than posteri- 

 orly ; eyes comparatively small ; a triangular space above the antennas is destitute of pol- 

 len, and hence more shining ; below the antenna?, down to the palpi, there is a convex, 

 trapezoidal reddish-yellow, shining space, limited hy deep grooves. Antenna) yellow, third 

 joint reddish. Palpi yellow, with short, black hairs. Proboscis extending but Kttle beyond 

 the palpi, yellow, lips large. Cheeks clothed with a very soft, whitish pubescence. Thorax 

 somewhat reddish on the disc, with a faint trace of a longitudinal dark line, otherwise uni- 

 formly yellowish, densely clothed with appressed pale yellow, shining hairs. The abdom- 

 inal segments above show some traces of brownish at the base ; otherwise the abdomen is 

 uniformly yellowish, with a dense, appressed, pale golden-yellow, shining ptibescence. Hal- 

 teres and legs yellow. Wings : a pale brown cloud of a rather indefinite outline occtipies the 

 two basal, marginal and submarginal cells, somewhat encroaching upon the base of the 

 first posterior, of the discal and slightly upon the fifth posterior cells ; the root of the wing 

 is hyaline ; the costal cells, the base of the marginal cell and the whole posterior half of 

 the wing are impure hyaline ; a sliglit In'ownish cloud in the axillary corner of the wing. 

 S igma and its environs tinged with yellow. Base of the second submarginal cell rather 

 acute ; no stump. All posterior cells oj^en. 



Hub. Middle States; Ti'enton Falls, N. Y. ; Delaware. (A male in the Museum of the 

 Ent. Soc. Philad. ; a female in Mus. Comp. Zool., Cambridge, Mass.) 



Ohseroatlon. The proboscis of this species is unusually short for a Pangonia ; the basal 

 division of the third joint is stout, withoitt any vestige of an angular projection ; the ( ? ) 

 front is three times as broad as in the three preceding species ; the head is fiattened, etc.^ 



^It may be useful to reproduce here the ratlier iiiaccessi- alarum albis, .abilouihic piceo, segmeiito i)riuio fulvo margi- 



ble description of P. macnxjloxaa Westw. (Loiul. and Edinb. nato, V° et 4° alLio margiuato, 3"° ruib margiiiato, reliquis 



Philos. Magaz. 1835). fusco marginatis ; alis basi et a costam late infumatis ; pedi- 



Pangonia maeroglossa Westw.— Pallide fusco pubes- bus testaceis.— Long. corp. lin. 8| long.; prob.lin. 15. Exp. 



cens ; facie alba, (ocellis 0), thorace vittis duabns longitudi- alar. lin. 10. Hab. iu Georgia. 

 naUbus in medio, lateribus et macula utrinque basin versus 



