230 



The pupae of this species were found under circumstances similar 

 to those recorded for Palpoinyia longipcnnis Loew (see p. 225), and 

 no difficulty was experienced in rearing the adults from pupae placed 

 on damp sand. 



JOHANNSENIKLLA FLAVIDULA, U. Sp. 



Female. — Yellow, shining. Antennae brownish yellow, scape and 

 base of flagellum generally yellow; head brownish, face, palpi, and 

 proboscis paler. Abdomen shining dorsad, subopaque on venter. 

 Legs yellow, the apices of first three joints of tarsi narrowly and the 

 last two joints entirely brown. Wings clear, veins yellow. Halteres 

 yellow, knobs sometimes black at apex. 



Frons narrow, not one eighth as wide as head; second antennal 

 joint globose, third joint about one and a half times as long as 

 second and distinctly longer than the next two together, length of 

 antenna rather less than equal to that of head and thorax together, the 

 hairs rather short; proboscis not half as long as height of head. 

 Hairs on mesonotum extremely short, almost indistinguishable, those 

 on the scutellum rather distinct. Abdomen somewhat spatulate, the 

 basal segment elongated, the apical 2-3 segments short. Legs slender, 

 surfaces slightly hairy; basal joint of all tarsi slightly shorter than 

 the remaining joints together, third and fourth joints short, the third 

 longer than the fourth, last joint longer than the second, the ventral 

 spines distinct; all tarsal claws subequal in length and rather large, 

 each with sub-basal tooth. Third vein about four fifths the length 

 of the wing; fourth vein forking before the cross vein; costa with 

 microscopic hairs. 



Length, 4.5-5.5 mm. 



Type locality, Havana, Illinois ; reared from pupa found in the 

 Illinois River May 3, 1895 (C A. Hart). 



Paratypes : Havana, same date as type, seven females ; Havana, 

 May 25, 1895, Illinois River (C. A. Hart), one female; and two 

 females, Algonquin, one dated May 14, 1894 (Nason). 



Pupa. — Length, 7 mm. Yellow, subopaque, the surface slightly 

 granulose. Thoracic callosities much smaller than in alharia (see 

 (PI. XIV, Fig. 30), the respiratory organs rather larger, but distinctly 

 smaller than in Palpomyia longipcnnis. Length from anterior margin 

 to apex of wing case equal to that of the next three and a half 

 segments; dorsal and lateral projections on the abdominal segments 

 leaf like and very distinctly protuberant (Fig. 31); apical segment 

 bifid (Figs. 32 and 33). 



