HEMISTOLA. By L. B. Prout. 
19 
Th. lacerataria Graeser (3 d). The true suavis Swinh. from Yunnan, cited as a synonym in Vol. 4, p. 30, lacerataria. 
seems to be a sejiarate species, more approximating in shape to the Indian aeruginata (see Vol. 12, p. 12J) 
but the mentioned form from Szechuan probably remains here and may be referred to — - thibetica Wehrli thibeticu. 
(in litt.) subsp. nov. (3 d). “Lines finer and cell-dots smaller.” Type a J from Taytuho, Tibet, kindly lent for 
figuring by Dr. Wehrli, to whom we owe the diagnosis. 
33. Genus: Hcmistola Warr. 
(see Vol. 4, p. 30; Vol. 12, p. 123; Vol. 16, p. 43). 
H. chrysoprasaria Esp. occidentalis Wehrli (3 d) has the postmedian line of the forewing straighter, occidental 
almost or altogether without the anterior curve of that of c. chrysoprasaria; the ground-colour is generally 
of a more intense, less bluish green. It shows slight anatomical distinctions in that the patches of cornuti are 
less strongly developed and the ventral support of the penis more slender. This race is known from Andalusia, Al¬ 
geria and Tunis. — siciliana subsp. nov. is very similar to the most yellow-green forms of occidentalis and will siciliana. 
possibly prove untenable when more extensive material from various localities has been compared, but accord¬ 
ing to the series before me (6 and 2 99, from the Ragusa collection) has the distal margin of the forewing 
slightly less oblique, the postmedian line nearly parallel with it, sometimes (particularly in the 2 $$) almost 
meeting the postmedian of the hindwing, as in zimmermanni , to which it also shows some superficial resemb¬ 
lance in that the line in question is generally more crenulate than in most forms of chrysoprasaria. Sicily: 
Taormina, Ficuzza, Busambra, etc.; also in S. Italy. 
H. intermedia Djakonov. Near zimmermanni , in some respects transitional towards chrysoprasaria. intermedia. 
Antennal pectinations appreciably shorter than in the former, but not nearly so short as in the latter; palpus 
also somewhat intermediate. In the genitalia very similar to zimmermanni. Hindwing angled, nearly as in 
zimynermanni. Groundcolour more intensive grass-green than in either of the allies, the white lines not dentate, 
in their course similar to those of zimmermanni. Minussinsk district. 
H. zimmermanni Hed. (Vol. 4, pi. 2 k) ab. lissas Wehrli (3 d) is an aberration (sport) with the hind- lissas. 
wing rounded, not angled; thus parallel, in a measure, with chrysoprasaria lissas, but so much the more strik¬ 
ing in that the angle of the hindwing is generally quite sharp and that Wehrli's specimen (a $ from Amur) 
comes from the headquarters of typical zimmermanni. — ab. minutata Sterneck, from Pekin, erected as a minutata. 
separate species, is a dwarf form with the postmedian line non-dentate, thus superficially resembling inter- 
media. — pseudochrysoprasaria Wehrli (3 d) seems to form a local race in the Ussuri district, otherwise the yseudochry- 
name of minutata would have covered it, since its chief distinction is in the non-dentate or only weakly dentate s °prasaria. 
lines. It is, however, not necessarily small and shows a slightly more bluish green colour than typical zimmer- 
manni. It has been very frequently confounded with chrysoprasaria. — zimynermanni is very widely distributed 
in Siberia and is also recorded from W. China (Ta-tsien-lu). 
^ diriaZ l & 
H. dijuncta Walk. (3 e). We are now able to give a good figure of this species. In the spotted fringes, dijuncta. 
it comes nearer to veneta than to chrysoprasaria, but the structure renders it readily distinguishable; other 
easily observable distinctions are the more elongate wings, absence of terminal line, darker fringespots and 
purple-red, not orange-red face. 
H. veneta Btlr. (Vol. 4, pi. 27 c). If, as now appears probable, all the forms hitherto referred to this veneta. 
or to insolitaria Leech (Vol. 4, pi. 2 h) constitute a single species, it is more variable than was recognized in 
Vol. 4, p. 31. A series collected by Wileman, chiefly at Yoshino, Yamato, and determined by him as insol- 
itaria has not the light chrysoprasaria- like colour of typical veneta nor the intense green of Leech's type and 
the angulation of the hindwing varies a little. 1 incline to refer this series to veneta. — insolitaria Leech may insolitaria. 
best be regarded, until further material from Kiushiu is available, as a race of veneta, characterized by its 
vivid colour and its strongly angled hindwing, perhaps also by the postmedian line, which in typical veneta. 
is nearly always more or less wavy. — A possible further race, from W. China (Kwanhsien), doubtfully referred 
here by Sterneck, is unknown to me, but seems more likely to be a related species, as the postmedian line 
is “dentate”, the abdomen noticeably crested, etc. 
H. parallelaria Leech (Vol. 4, pi. 2 h) ab. distans Sterneck has the antemedian of the forewing nearer distans. 
to the base and less straight, a weak inward bend at the median causing it to fall perpendicularly on the 
inner margin, the postmedian more distally placed: all the lines broader and more diffuse. Ta-tsien-lu, 1 $. 
H. inconcinnaria Leech (Vol. 12, pi. 14 d). Accidentally omitted from Vol. 4, but described in Vol. 12, inconcin- 
p. 124. Somewhat more slenderly built than any of the preceding and with the postmedian line formed of naria. 
rather deep lunules and sharp teeth on the veins, much as in some Iodis. No terminal line or red fringe-spots. 
Antennal pectinations of the $ quite short. W. China. 
H. euethes Prout (1 e). Smaller and shorter-winged than inconcinnaria , the scaling denser, a brown euethes. 
