16 
HEMIDROMODES; HIEROCHTHONIA. By L. B. Prout. 
halimaria. 
polemia. 
menadiara. 
therapaena. 
ephedrae. 
atlagenes. 
saturata. 
hessa. 
pulveraia. 
M. halimaria Chret. (Vol. 4, pi. 2e). To the distribution should be added Morocco, Tunis. Tripoli and 
Egypt. 
M. polemia Prout (3 a). Palpus in $ fully twice as long as diameter of eye, 2nd joint with less strongly 
projecting scales above than in herbaria, 3rd joint about twice as long as 2nd. The <$ is unknown; $ antenna 
not pectinate. Forewing rather broad, the lines extremely fine and weak, sometimes not traceable, the post¬ 
median more proximally placed than in herbaria. Mesopotamia: Kut al Amara. 
M. menadiara Th.-Mieg (3 b) has latterly been received from several localities in Morocco, Oran and 
Alger and we are able to give a figure. Doubts regarding the sex of the type specimen, aroused by Thierry- 
Mieg’s inaccurate statement that its antennae are crenulate rather than pectinate and Oberthur's still more 
erroneous statement that it is a $. have been set at rest by my good friend Dr. Wehrlt. It is a the pec¬ 
tinations somewhat longer than in saturata. The $ is also, as in that species, shortly pectinate and I no longer 
doubt that Pungeler’s example mentioned in Vol. 4 (p. 27) belongs here, menadiara varies greatly in size, 
the first brood, especially in the $, much larger than the later emergences. 
M. therapaena Prout (3 b). Near menadiara, palpus rather shorter, antennal pectinations of the $ 
shorter, the inner series scarcely longer than the diameter of the shaft, the outer scarcely over twice that dia¬ 
meter. Forewing with distal margin very slightly more oblique than in menadiara, not at all bent in the middle; 
costal edge whitish, cell-dot discernible in some lights, postmedian line less punctiform than in menadiara. 
Hindwing with termen bent in middle, though hardly noticeably, cell-dot discernible though weak, postmedian 
indicated by slight dots on the veins. Gafsa, Tunis, only the type known. The scaling on the basal part of the 
antennal shaft in this group is long and usually overhangs, sometimes almost hiding, the pectinations of the 
inner series; in therapaena, however, the said ‘'pectinations” are, as far as about the 6th joint, mere teeth. 
M.. ephedrae sp. n. (3 b) can scarcely be a form of therapaena. Palpus scarcely so short, its 3rd joint 
more red-brown. Proximal pectinations perhaps scarcely so rudimentary. Colour deeper green, costal edge 
of forewing tinged with vinaceous, cell-dot wanting, postmedian line more punctiform, except near hind- 
margin, hindwing with cell-dot fainter, postmedian more sinuous. Genitalia evidently similar; the armature 
of the valve (harpe) looks less highly chitinised, perhaps also a little broader and less sharp-tipped, but with¬ 
out dissection it is not possible to decide whether the differences are more than racial. Bekrit, ca. 2000 m, 
Middle Atlas (26 km S. of Timhadit), 1 <J bred from larva found on Ephedra nebrodensis, emerged 2 August 
1924, type in the British Museum, ex coll. Oberthur. 
M. atlagenes sp. n. (3 b). <$ 28 mm, $ 36 mm. Very similar to menadiara, with which I first identi¬ 
fied it. The palpus in the $ and its terminal joint in both sexes seem to be slightly longer, the antennal pec¬ 
tinations in the scarcely as long (but longer than in therapaena and ephedrae), in the $ little longer than 
diameter of shaft. Forewing with distal margin not at all sinuous, in the $ therefore very distinct from that 
of menadiara ; greyer green than the other species; cell-dot very faintly indicated; postmedian line about as 
in therapaena, but with the inward curve approaching that of ephedrae. Hindwing with distal margin not 
appreciably bent; postmedian intermediate between those of therapaena and ephedrae. $ genitalia with the 
valve somewhat more narrowed distally than in the other species, its armature (harpe) more ample. Tinmel, 
Great Atlas, 20 May 1927, 2 $3 and 1 £ collected by Le Cere and Talbot for the Hill and Paris Museums. 
M. saturata B.-Haas (Vol. 4, p. 27, pi. 2 f) occurs also at Albarracin, where it has been taken in some 
numbers in June and July, and in Catalonia. As the palpus of the $ also is very short, it probably calls for 
geireric separation from Microloxia ; $ antenna shortly pectinate. In North Africa its range extends from 
Morocco at least to Lambese. 
26a. Genus: Hemfdromodcs Prout. 
Tongue wanting. Antenna short and stout, pectinate, though in the $ only slightly. Hindtibia of the 
<$ strongly swollen, with the terminal spurs very short; in the $ with the proximal spurs short or wanting. 
In the hindwing venation near Hierochthonia. See further Vol. 16, p. 38; for the sole Indian specimen yet known, 
Vol. 12, p. 120, pi. 12 k. A form recently received from Palestine is so closely related that it may be assumed 
to be a subspecies. 
H. sabulifera Prout (Vol. 12, pi. 12 k) hessa subsp. nov. (6 b). Larger than the type from Deesa (<$ 18—22 mm, 
£ 25 mm), perhaps somewhat whiter, the postmedian line incurved between the radials as well as between 
the 2nd median and the submedian. Ghor el Safieh, S. of the Dead Sea (M. Aigner) 3 1 $, in Mus. Tring, 
all unfortunately faded. 
27. Genus: Hierochthonia Prout. 
H. pulverata Warr. (Vol. 4, pi. 2i). Pfeiffer's collecting lias shown that this is not rare as far north¬ 
ward as Marasch. YVehrli points out that, apart from the structure, it is distinguishable from X. beryllaria by 
the more oblique lines of the forewing. 
