2 
T. D. A. COCKEKELL. 
Proctotrypidae. 
Hadronotus Förster. 
A genus with numerous living species, parasitic on Hemipterous eggs. 
Hadronotus electrinus sp. nov. 
Length about 1836/*; black anterior and middle legs bright deep 
ferruginous, hind legs apparently black; antennae red, with the last 
six joints, forming a thickened club, dark fuscous; eyes perfectly bare. 
The appearance of the antennae agrees very well with those of Ha- 
dronotus rugosus Howard. 
Head broad (breadth 595/05 vertex with very strong but sparse 
punctures; lateral ocelli 51 /* distant from eye; antennae 12-jointed, 
thick, the club 68 /* in diameter; second antennal joint 85 g long, the 
third to sixth successively shorter, the sixtli and seventh much broader 
than long (seventh 60 g broad and 34 long); penultimate joint 60 g 
long; last joint pointed, 68 g long. The antennae arise very low down 
on face. 
Mesothorax and scutellum moderately shining, sculptured alike, 
with a network of fine lines breaking the surface up into minute 
triangulär areas, which average about 17 g in diameter; no punctures 
or grooves, except that the posterior margin of scutellum, postscutellum 
and base of metathorax have each a transverse row of punctures; 
there is a similar row of punctures, each about 17 g diameter, and 
contiguous to one another, 34 g from base of second abdominal 
segment. First abdominal segment very broad, its basal part with 
elongate foveae or grooves, its apical margin smooth; second segment 
with a strong reticulate sculpture, except the hind margin, which is 
smooth; remaining segments smooth or nearly, the second with feeble 
reticulate markings on disc. Ovipositor short but visible. Second ab- 
dominal segment larger than third. 
Wings clear, with ferruginous venation; stigmal vein about 85 g 
long ; postmarginal evident, apparently longer than stigmal, but 
gradually evanescent apically; marginal punctiform; submarginal diverg- 
mg considerably from costa; margin of wings strongly fringed, the 
fringe 34 g long; base of stigmal vein 612 g from base of wing, and 
510 from level of apex, not counting fringe. 
Legs normal, all the tarsi 5-jointed; spur on middle tibia short, 
little over half length of basitarsus; spur of anterior tibia strongly 
curved; length of middle tibia 323 g. 
Prussian Amber. 
