270 MAINE AGRICULTURAL EXPERIMENT STATION. 19IT. 



is just cHstad of the same, and the furcation of the media is 

 distad of the base of Rs. "Mo." April. 



2. Bolctina parvula Coquillett. 

 Proc. U. S. Nat. Museum. XXIII. 597. 1901 (Leptomorphus). 

 parvula, Johannsen ; Gen. Ins. Fasc. 93, 75. 1909. (Bolct'na). 

 An examination of the type showed that this species belongs 

 to AUocotoccra and not to Bolctina as I formerly believed. A. 

 flavcscens is a synonym. 



3. Bolctina obsciira n. sp. 



Male. Length 3.5 mm. Black, including the head and all 

 its parts, thorax, abdomen and coxae ; legs paler, femora light 

 yellow, tibiae slightly darker, spurs white, tarsi brown; wings 

 hyaline, cinereous tinged, veins pale brown, venation as figured 

 (Fig. 179) ; halteres yellow. Antennas long, intermediate joints 

 over twice as long as broad. Thorax dull, hairs including 

 those of scutellum bright yellow on the mesonotum in 3 rows; 

 abdomen subshining, its hairs as well as those of the coxae, 

 pale. Hypopygium dusky (Fig. 146). One claw on each of 

 fore and middle foot, modified, scoop-shape, fluted and with 

 serrate margin. Hampton, N. H., April and May (S. A. 

 Shaw); Ithaca, N. Y. ; Forest Hill, N. J., (Weidt), April. 



Female. Differs in having the fork of the cubitus slightly 

 more retracted, in having relatively slightly shorter fore meta- 

 tarsus, and in having unmodified claws. Brookline, Mass. 

 (C.W.J.) 



In this species the subcostal crossvein (Sca) is frequently 

 absent. 



4. Bolctina cincta n. sp. 

 Male. Length 4 mm. Head black, face, palpi, 3 or 4 basal 

 joints of antennae yellow; intermediate antennal joints about 

 twice as long as wide. Thorax yellow, mesonotum with 3 

 confluent black stripes; scutellum and base of metanotum black; 

 hairs yellow ; scutellar setae black. Abdomen yellow, the dor- 

 sum of I, the whole of 5, 6, 7 and hypopygium (Fig. 147) and 

 large basal triangular saddles on 2, 3 and 4, black. Coxae and 

 legs yellow, tarsi brownish, spurs yellow, trochanters black; 

 each tarsal claw toothed at base. Wings hyaline, slightly smoky 



