. The Canadian entomologist. Insects; Entomology. THK CANADIAN EINTOMOLOGIST. 307. the postocular, with their bases midway between the anterior ocellus and each posterior one. Eyes moderately large, not prominent, scarcely protruding. Ocelli brownish-yellow, anterior ocellus slightly overhanging ; posterior ocelli contiguous to h'ght inner borders of eyes, their diameter almost three times that of the facets. Antennae eight-segmented; segments 3-6 clavate ; 7 and 8 fusiform ; sense-cones long, slender, transparent. Mouth-cone reaching nearly to base of prosternum, short, broadly rounded; labiu
. The Canadian entomologist. Insects; Entomology. THK CANADIAN EINTOMOLOGIST. 307. the postocular, with their bases midway between the anterior ocellus and each posterior one. Eyes moderately large, not prominent, scarcely protruding. Ocelli brownish-yellow, anterior ocellus slightly overhanging ; posterior ocelli contiguous to h'ght inner borders of eyes, their diameter almost three times that of the facets. Antennae eight-segmented; segments 3-6 clavate ; 7 and 8 fusiform ; sense-cones long, slender, transparent. Mouth-cone reaching nearly to base of prosternum, short, broadly rounded; labium surpassing labrum by the length of the basal segment of the maxillary palpus. Prothorax three fifths as long as width of head, and (including coxje) about three times as wide as long; surface finely striate; usual spines all present, slender, pointed, the pair at the \ _ / posterior angles much the longest; mid-laterals very small. Pterothorax large, rectangular, two-thirds as long as wide. Wings long, reaching about to base of ninth abdommal seg- ment. Anterior femora and tibi« set with a number of long bristles ; anterior tarsus armed with a blunt tooth. \,\f xss Abdomen moderately stout, equal in width to pterothorax widest at segment 4, from which it tapers evenly to tube. Tube slightly shorter than head, slender, and of nearly equal p „ ^ diameter throughout, excepting base, which is slightly spinosus. expanded, and apex, which is slightly constricted; surface spinose. Measurements : Total length, mm.; head, length, . mm.; width, .30 mm.; prothorax, length .i8mm , width (including coxae) .56 mm.; pterothorax, width, .67 mm.; abdomen, width, .74 mm.; tube, length .63 mm., width at base .13 mm, at apex .07. Antennae: i, 76/x ; 2, 95M; 3. 185/x; 4, i6o/x; 5, 150/x; 6, i2 2/x; 7, 65/x ; 8, 76/x. Total, .83 mm. Described from two macropterous females taken at Harrisburg, Pa , March 10, "in burrows of Lepidopterous or Coleopterous larva in dead willow
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