2 
PROPORTIONS OF ANTENNAL JOINTS (FUNICLE AND CLUB). 
1 2 3 4 5 6 Club 
Wen gih® ier. tae 1.0) 34 36 38 45 39 68 
ISIRERYCNAD,” Geohea amelie ato 1053 15 16 16 17 iLyy PX! 
Hypergonatopus vulcanus n. sp. 
Female. Similar to hawatiensis but the eyes are slightly smaller and 
very narrowly separated behind from the occipital margin, their inner 
orbits more parallel; frontovertex wider or about two and one-half times 
longer than wide; ocelli arranged in a nearly equilateral triangle, the 
distance between the posterior pair hardly less than the distance from 
either to the anterior ocellus; scrobal impression of face slightly deeper; 
antennae similar, but the first funicle joimt is proportionately a little 
longer, the sixth funicle joint more abruptly wider than the preceding 
joint; wings shorter and wider or about 2.6 to 2.7 times longer than 
wide, the marginal vein shorter or only slightly more than twice as long 
as the stigmal, the latter proportionately longer, nearly straight and more 
nearly of the same thickness throughout, the postmarginal also propor- 
tionately longer. Sculpture hardly distinguishably different from hawaii- 
ensis, but apparently a little coarser. 
Coloration as in hawaiiensis, but with somewhat. weaker metallic luster, 
legs somewhat darker, the pale annulus at base of middle femora hardly 
apparent, the middle tibiae almost wholly dark, or only shghtly brown 
or yellowish at extreme apex. Wings with a small, somewhat semi-circular 
darker cloud just beneath the marginal and stigmal veins, the pattern 
otherwise similar. 
Length of body, (0.94 to) 1.05; length of head, 0.358; width of head, 
0.407; thickness of head, 0.233; width of vertex at anterior ocellus, 0.120; 
width of mesoscutum, 0.370; length of forewing, 0.933; width of fore- 
wing, 0.356 mm. : 
Male. Similar to the male of hawaiiensis, differing principally in the 
shorter, wider wings, which are about 2.5 times longer than wide; the 
club somewhat wider than the funicle and proportionately shorter, or only 
about one-fifteenth longer again than the first two funicle joints com- 
bined. Coloration similar with differences as noted in ease of the female, 
the wings, however, more deeply stained, a small spot beneath the mar- 
ginal and stigmal veins being very deeply pigmented. 
Length of body, 0.91; width of vertex, 0.162; width of mesoscutum, 
0.353; length of forewing, 0.943; width of forewing, 0.379 mm. The 
head is slightly shrunken so that other measurements are not possible. 
Described from four females, two males (holotype, allotype, 
and paratypes) reared from a Dryinid cocoon, probably of 
Pseudogonatopus perkinsi (Ashmead), Kilauea, Hawaii, Feb- 
ruary 8, 1917 (F. Muir), and from the following paratypes: 
One female collected at twenty-nine miles, Kilauea, Hawaii, 
