!•• TlIK < AN \l>l AN KNTuMulAMillfr. 



the striw being continued above, encircling the eye. Middle part of face 

 Ijctween the eyes smooth and shining. Vertex about ocelli lightly striated. 

 Clypcus coarsely, transversely striated. Mandibles with two equal acuir 

 teeth, the inner with small lobe at the base between the two. 



Antenna; as long as body. Antennal bulb twice as long as thick. 

 ScaiM: of moderate thickness, reaching to ocelli. Pedicel as long as thick. 

 Klagellum tapering slightly, first flagellar joint two and one-half limes as 

 long as thick, second twice as long as thick, the remaining eight one nnd 

 one-hdlf times as long as thick. 



Thorax : I'ronolum narrow from above, linely and densely punctate. 

 Mesonotiim heavily interruptedly striate lonjiitudinally, moderately clothed 

 with short, fine Iiairs. Sculellum coarsely roughened moderately cloihtd 

 with short hairs. I'oslscutellum roughly tuberculate, spine of moderate 

 si/e, til) slightly i>roduced and thin. 



Abdomen ovate. First segment as wide as long, coarsely and heavily 

 striated longitudinally. .Second segment as long as first, coarsely and 

 heavily striated. Third segment as long as the two preceding together, 

 and slightly more than one-third as long as the entire abdomen, slightly 

 wider than long, the central half of the dorsal surface being coarsely but 

 less heavily striated iliaii the preceding two, the portion not striated 

 siiKJOlh and sparsely hairy. 'I'he remaining segments very finely punctate 

 and thinly covered with fine hairs. 



Legs : Coxje : outer or lateral surfiices smooth, inner surface covered 

 with fine hair ; trochanters, femora and tibi.x normal : tarsi fivejointed, 

 the first joint as long as the remaining four. 



Wings reaching slightly beyond the tip of the abdomen, finely ciliated, 

 l)ubescent and very slightly smoky, veins brown. Submarginal and 

 marginal vein with a row of stiff hairs projecting forward beyond the edge 

 of the wings. 



Stri«» on third abdominal segment, lobe between teeth, large size, 

 long first flagellar joint and colour go to distinguish this species. It comes 

 nearest to //. lon^i(>enHii, .Ashmead, and //. tibuilis, Ashmead. 



Described from one ^ taken at Aurora, 111., June 15th, 1909. in a 

 nest of Formica subru/a. This, however, should not be taken as 

 indicating definitely that the species is myrmecophilous. 



Type deposited in Illinois State Laboratory of Natural Historv, 

 Accession No. 39771. Named in honour of Trof. CI ^ Hcthune. 

 Ontario Agricultural College, Cluelph. 



