448 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



4. Costa about two-fifths the length of the wing; hind tibia entirely yellow. 



fasciata, p. 448. 

 Costa longer, but not reaching middle of wing, hind tibia black at apex posteriorly. 



nedae,, p. 448. 



5. First costal division at most one and one-half times as long as the second; species 



mostly yellow with black marks on abdominal segments 6. 



First costal division twice as long as second, species with at most the thorax reddish, 

 and whitish or yellowish marks on abdomen 7. • 



6. First division of costa shorter, or only as long as second subpida, p. 452. 



First division of costa one and one-half times a^ long as second picta, p. 451. 



7. Humeri and postalar calli yellow, hind margins of abdominal segments narrowly 



yellowish barberi, p. 450. 



Thorax sometimes reddish, abdomen black with male hypogium and female ovi- 

 positor whitish, a yellow streak over insertion of antennae on frons. 



giraudii, p. 451. 

 APmOCH.S;TA FASCIATA Fallen. 



A species represented in the collection by two specimens from 

 Malaga, Spain; the species standing us fasiata being that described 

 below. The costa in fasciata only reaches to about two-fifths of the 

 ^\dng length, the first division being more than twice as long as the 

 remainder; the frons is rather longer than broad, the post-antennal 

 pair of bristles are very small, the third joint of antennae is large and 

 oval, the arista is short, the abdomen in male is all black except the 

 basal segment, and sometimes the apical two slightly, and the venter 

 which are yellow; the antero-dorsal bristles on hind tibia are on 

 basal half only, hind metatarsi as thick as tibia, rather more thick- 

 ened in female than in male. Schiner mentions that this species is 

 parasitic on Coccinella species. The species recorded by Aldrich ^ 

 could not have been fasciata Fallen, as it is a much smaller insect 

 than picta Lehm, whereas he says his specimens were on the average 

 larger. 



I have seen one of the specimens named for Mrs. Slosson by Coquil- 

 lett as fasciata and find that it is epeirse Brues. This name, like 

 giraudii Egger, had better be removed from list of American 

 species. 



APHIOCH^TA NEDiE, new species. 



Very similar to fasciata Fallen, but in color it is brighter, and in 

 size rather larger than that species. The principal distinctions are: 

 Head, thorax, and abdomen yellow, except the ocellar triangle, and 

 triangular patches on the lateral margins of segments three and 

 four, in both sexes, which are black; the post-antennal bristles are 

 very small but both pairs are present; there are two very fine hairs 

 anterior to the usual two scutellar bristles; the costa reaches to 

 short of the wing middle, but is longer than in fasciata, the cells 

 between the thick veins are broader; the legs are yellow except 



I Trans. Lond. Ent. Soc, 1896, p. 436. 



