724 Pomona College Journal of Entomology 



and a yellow tip. Anal plate (Figure ij3i2, 18) very distinctly bitid, but not as 

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

 anal plate is usually hid by the pygidium 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 flaring 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 parallel lines at the base. Length 0.1 

 mm. Legs — Normally long and hairy, transparently j-ellow with femora and 

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

 legs are darker than those of the other two pairs. Wings — (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 2.4 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, dusk}' 

 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 uniformly 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- 

 eoidal is slightly curved outwardly at the base and from thence continues almost 

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

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

 and third 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 wardly; third discoidal is obsolete at the base, twice-branched, nearly parallel to 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 tlie middle of tlie wing tij). tjie second fork being formed near 

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

 I'roMi tills 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 .'i to 10 inclusive are taken from individuals whose other wings were 

 normal. The coxtiil .■ind siihco.stiil veins are norni.al and constant throughout; the 

 xli!j:»itil ri-iii is constant in a large majority of cases as in 3, I, 8, 10. I !•, 15, one of 

 1(), 17 and 18, but in .) the base is obsolete and the curve slight, in (i the base is 

 .•ilso obsolete with a portion isolated from the ninaindt r. in the right wing of 13 

 it is undulati- as is also the eas<> in the right wing of Hi. In all it is noticeable 

 that the greatest amount of curvature is in the bas.-il half of the vein. First dis- 

 coitliil is str.aight as shown in (), 8. j), 10, I."). Hi. 17. in .i and ."i undulate, in K 7. 

 II. 17 and 18 curved outwardly. Sfcoinl ilisroiiliil is straight in the drawing of 

 till' winged female and in 8 and 1 I. slightly undiiliti' in ."> and (J, bent outw.-irdly 



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