264 THE CANADIAN ENTOMOLOGIST 



Apterolaelaps, new genus. 



Female — Name proposed Ijy Ashmcad, hut never made valid 

 by description of a genotype. 



Apterolaelaps nigriscutum, new species. Genotype. 



Female — Length 3.00 mm. 



Reddish >ello\v, the following i)arts black: Upper third of 

 occiput cxcej)t dorsad centrally, vertex, upper half of face (mostly 

 mesad), antenna (except scape, pedicel, ring-joint, funicle 1 and 

 narrowly, extreme apex of club); scutum (except cephalic third), 

 the parapsides and the abdomen except its petiole, dorsolaterad 

 at proximal half of segment 2, segments 3-5 (all short) and the 

 meson of venter narrowly. Head and thorax densely scaly-reticulate, 

 the scutellum long-striate distad of the cross-suture, the propodeum 

 with a median ruga and irregular longitudinal rug^e, the neck 

 distinct. X'ertex with about a half-dozen long, black seta^; the 

 scutellum with a similar seta laterad at the cross-suture, the 

 cephalic scutum hairy. Caudal margin of scutum broadly arcuate 

 at the meson. Segment 2 of abdomen glabrous, the rest of the 

 abdomen with short, sparse pubescence. Petiole rugulose. Head 

 wider than the thorax, the antennae insertetl on a level with the 

 ventral ends of the eyes, their scrobes long-triangular, reaching 

 nearly to the cephalic ocellus, cross-striate, divided by a thin 

 carina; an arcuate cross-carina just ventrad of the antennae. 

 Club 2 a little longest of the flagellum; pedicel a little longer 

 than funicle 1, the latter twice longer than wide, 4 cjuadrate, 

 7 somewhat wider than long. Mandibles tridentate. 



From one female in the U. S. National Museum, Fort Pendle- 

 ton, West Virginia, "10.7." 



Type 1— Catalogue No. 20306, U. S. N. M., the female on a 

 tag, the head, pair of wings and caudal tibia^ on a slide. 



Fore wings minute, linear, subhyaline, four times longer than 

 wide, the marginal vein with long bristles, half the length of the 

 submarginal and terminating at wing apex; the caudal wings are 

 only somewhat longer than wide. 



