724 Pomona College Journal of Entomology 



and a yellow tip. Anal plate (Figure 2,V2, 18) very distinctly bifid, but not as 

 much so as in the genus Callipterus, very hairy or covered with long spines. The 

 anal plate is usually hid by the pygidiuni which extends over it dorsally, light 

 yellow in color. Ventral surface pale uniform green. Cornicles — (Figure 232, 

 10). Longer than broad, somewhat truncate, broader at the base and Haring at 

 the mouth, narrowest just before the mouth, longer than broad, light transparent 

 yellow, the base surrounded by a yellow area, surface covered with irregular 

 mosaic figures which are nearly circular jiarallel lines at the base. Length 0.1 

 mm. Legs — Normally long and hairy, transparently yellow with femora and 

 ti))s of the tarsi (Figure 232, 12) dusky amber. The femora of the metathoracic 

 legs are darker than those of the other two pairs. JVings — (Figure 231, 1-19). 

 Slender, hyaline to faint sub-hyaline and venation very variable. Primary/ — 

 (Figure 231, 3-18). Length from 1.95 mm. to 2.1 mm., width from 0.65 mm. to 

 0.8 mm. Venation exceedingly variable within the species and within the same 

 individuals. The most typical venation is shown in the wings of the winged 

 female and may be expressed as follows : Costal wide to base of stigma, dusky 

 brown; subcostal wider than the costal, dusky brown; stigma (Figure 231, 11) 

 dusky brown, rather short and oblong, narrowest at base and widest at the base 

 of the stigmal vein with both sides imiformly sloping to form a blunt tip, light 

 streak near the ventral border and the area between the light streak and the 

 bottom margin covered with about sixteen short curved hairs which are situated 

 on slight tubercles, length 0.1 mm., width at stigmal vein 0.03 mm. Stigmal vein 

 arises near the apical end of the stigma and is usually strongly curved downward 

 in the first half and more gradually curved in the remaining half — may even be 

 undulate. The discoidal veins are the most variable, but normally the first dis- 

 coidal is slightly curved outwardly at the base and from tlience continues almost 

 straight to the wing margin, it arises from the middle of the subcostal; second 

 discoidal arises from the subcostal nearly midway between the bases of the first 

 and tiiird discoidals, but slightly nearer the base of the first, is usually bent out- 

 wardly; third discoidal is obsolete at the base, twice-branched, nearly parallel to 

 the second discoidal, first branch arises near the middle and extends nearly 

 straight towards the middle of the wing tip, the second fork being formed near 

 the middle of the first branch, the lower branch runs parallel to the third vein. 

 From this normal venation will be found almost every conceivable graduation. 

 The wings represented by Figure 231, 13 to 17 inclusive, are pairs, while the 

 wings from 3 to 10 inclusive are taken from individuals whose other wings were 

 normal. The costal and subcostal veins are normal and constant throughout; the 

 stigmal vein is constant in a large majority of eases as in 3, l, 8, 10, It, l!j, one of 

 l(i, 17 and 18, but in ,'5 the base is obsolete and the curve slight, in 6 the base is 

 also obsolete with a jiortion isolated from the remainder, in the right wing of 13 

 it is undulate as is also the case in the right wing of 16. In all it is noticeable 

 that the greatest amount of curvature is in tiie basal half of the vein. First dis- 

 coidal is straight as shown in 6. 8, 9, 10, l.'i, 16, 17, in 3 and .') undulate, in 4, 7. 

 1 !•, 17 and 18 curved outwardly. Second discoidal is straight in the drawing of 

 the winged female and in 8 and It, slightly inidulate in 5 and 6, bent outwardly 



