PROTONEURA. 141 
boidal, the costal side being slightly shorter than the posterior side and only 
very little longer than the proximal side; inferior appendages of the males 
rudimentary ; females with no mesostigmal lamine or processes. 
Nodal sector on hind wings arising nearest. the fourth postcubital ; thoracic 
dorsum predominantly metallic green. . . . . . . 1. 2 © « 5. remissa, 
_ The venational characters only of I. and II. (not of their subdivisions) are those 
which de Selys employed 3 in grouping the species of this genus; the pterostigmal and 
other characters here added do not in many cases apply to the species known to him, 
but only to the five here treated. 
1. Protoneura peramans, (Tab. V. figg. 48, 49.) 
Protoneura peramans, Calvert, Ent. News, xiii. p. 231 (1902) *. 
¢. Head and thorax predominantly black, the latter frequently with a dark metallic-green reflection ; 
anterior edge of labrum and of mandibles, a pair of frontal spots, gene, labium, femora inferiorly, tibize 
superiorly, and most of the metasternum, yellow; a pair of median twin spots and a larger lateral spot 
on the middle prothoracic lobe, a small lateral spot on the hind lobe, a rather sleader humeral stripe * 
forming an inverted !, and a metepisternal stripe, orange-red; dorsum of abdominal segments 2-6 and 
of the greater part of 7 carmine-red, of 1, and most of 8 and 10, black, of 9 orange; 2-7 with a black 
stripe (sometimes absent) each side from base to apex, which is confluent with a black ring at the inter- 
segmental articulations, and whieh ascends to the dorsum in front of the apex, almost to meet its fellow 
of the opposite side on 3 and 4, meeting its fellow on the apical eighth or less of 5, fifth to eighth of 6, 
third of 7; 8 has an orange dorsal spot in its basal fifth, its sides are narrowly yellow inferiorly; 9 has 
a black lateral stripe wide at base, narrow or absent at apex; the only pale colour on 10 is one or three 
small mid-dorsal spots ; ventral surfaces of 1-5 pale except at the articulations, of 6-10 blackish. 
Hind margin of prothorax entire, convex. 
Superior appendages about three-fourths as long as segment 10 (which has a mid-dorsal apical notch), broadly 
bifid, the two branches lying in. a sub-horizontal plane; the outer branch twice as long as the inner, 
directed backward, curved slightly inward at its rather obtuse tip; inner branch more slender, its apex 
more acute and curved towards the median line; in a strictly profile view the outer branch occupies a 
slightly lower level than the inner. 
Inferior appendages slightly longer than 10, straight, slender, simple. 
Q. Differs from the male as follows :—Prothorax black, with two small, submedian, transverse streaks 
on the anterior lobe, anterior and middle lobes with a lateral stripe and their inferior margins, and 
the rear of the hind lobe, yellow; hind margin with three subequal rounded lobes. Humeral and 
metepisternal stripes similar to those of the male, but narrower and yellow instead of orange-red, most 
of the metepimeron and metepisternum yellow. Abdominal dorsum throughout black with a metallic 
reflection, the sides inferiorly yellow, which ascends somewhat at the base of segment 3, the apex of 8, 
and the middle of 9. Appendages small, black, half as long as segment 10. Genital valvules reaching 
as far as the apex of segment 10, yellow above, black below, their palps reaching farther back than the 
appendages. 
Anterior mesothoracic border with a bifid process, behind each mesostigma, directed forward and upward, 
the two branches lying in the same vertical plane. 
3 9. Wings hyaline, slightly smoky in the male, arculus slightly (100 °/, front wimgs, 58 °/, hind) or 
distinctly (42 0/, hind) beyond the second antecubital, its two limbs subequal; nodal sector arising 
nearest the sixth (83°3 °/,) or seventh (16-6 °/,) postcubital on the front wings, nearest the fifth (91°7 °/,) 
on the hind; ultra-nodal sector beginning 5-7 cells proximal to the inner brace-vein of the pterostigma 
* As is so frequently the case in this genus, the humeral suture divides this stripe obliquely into a supero- 
external (mesepimeral) and an infero-internal (mesepisternal) part. 
