Dec.,i902.] Carriker : New Mallophaga. 219 



The abdomen distinctly clavate, vvidest at the fifth and sixth segments, and 

 bluntly rounded by the last three ; posterior angles projecting, with one long hair, 

 except the last three segments which have two ; segments one to seven narrowly 

 margined with blackish-brown, shading inward, and extending into the adjacent an- 

 terior segment ; the spiracles showing as prominent clear spots just within the dark 

 lateral bands ; the interior portion heavily obscured by dark brown transverse bands, 

 slightly clearer at the sutures and partially divided medially by a pale longitudinal 

 line except on the eighth and ninth segments ; ninth segment flatly convex and uni- 

 formly brown ; a transverse row of about seven short, slightly pustulated hairs in the 

 median portion of each segment except the last. 



Four females collected from a Wilson's snipe (yGallinago delicaia) 

 (Ord.) by J. C. Crawford, Jr., Lincoln, Neb. and one female 

 from a skin of Franklin's Gull (^Larus franklini), which may have 

 been a straggler. My specimens differ considerably in many details 

 from Piaget's description and figure. The total length is about the 

 same but the head is markedly larger, while the metathorax is nearly 

 parallel sided instead of diverging, and on the whole if not deserving 

 specific rank it is at least a well-marked variety. 



Nirmus biocellatus, var. nigropictus, var. nov. (PI. XXI, Fig. i.) 



Female. — Length 2. 15 mm., width .6 mm.; pale, with bold blackish-brown mark- 

 ings on head, thorax and abdomen ; the antennal bands together with the internal 

 bands forming a clear parallelogram on each side of the head. 



Head, length .51 mm., width .55 mm.; broadly parabolic in front and naked ; 

 temples parallel with one weak hair and two short bristles ; occiput slightly concave. 

 Antennal bands heavy, running forward to the margin of the narrow, clear oral 

 groove, the posterior ends bending in at trabeculse and meeting the broad brown occip- 

 ital bands ; narrower internal bands run forward from the bend of the antennal band, 

 parallel to the sides of the head, to the margin of the oral groove then parallel to it to 

 the end of the head, where they again join the antennal bands, forming a clear 

 parallelogram on each side of the longitudinal oral groove ; temples narrowly edged 

 .with blackish ; a short ocular band joining templar and antennal bands ; a brown, 

 oval, occipital signature ; trabecule; short and uncolored ; antenna with first segment 

 clear, the remainder broadly annulated with blackish. 



Prothorax very short, margined laterally with blackish ; a hair at the posterior 

 angles. Metathorax short but broader than first segment of the abdomen ; sides very 

 broadly diverging ; posterior margin angulated, with six weak hairs on each side ; 

 anterior angles with a dark blotch and posterior margin with a broad black band. 

 Legs short, rather stout, femora and tibiee broadly margined anteriorly with black. 



Abdomen elongate oval, abruptly pointed posteriorly ; posterior angles protruding, 

 with one weak hair ; segments with lateral blackish blotches extending inward one 

 third the width of the abdomen, separated by broad clear sutures and narrowing and 

 lightening inwardly ; lateral blotches with two large, round, median clear spots, and 

 connected on segments I-5 by broad, brown transverse bands; a large brown median 

 spot on segments six and seven, narrowing posteriorly ; ninth segment with a small 



