Uec, I902.] Carriker : New Mallopha(ja. 223 



segments; ihe median portion slightly obscured by a continuous, fulvous, longitudinal 

 band, fading gradually laterally ; segments two to six with a median, narrow, dark 

 brown, transverse band, slightly posterior to the middle portion of the segment ; ninth 

 segment bluntly pointed, clear, with a slight median emargination ; a median trans- 

 verse row of long hairs along the middle line of segments one to seven. Legs short, 

 rather stout, concolorous with body and with narrow, broken chestnut bands along 

 the anterior borders of femora and tibite. 



The male differs considerably in several respects from the female. The head 

 and tIiora,\ being paler, the sides of the metathorax straight (though diverging), 

 while the abdomen is shorter and almost clavate ; the genital hooks small and blunt 

 while the whole body is much smaller than that of the female. 



Measurements: body, length 1.4 mm., width .5 mm.; head, length .44 mm., 

 width .44 mm. 



One female, one male and three immature males collected from a 

 Rocky Mountain Creeper {Certhia fa?)iiliaris montanus'), by Professor 

 Lawrence Bruner at Harrison, Neb., Feb. 17, 1896. 



This form resembles gi/losiis, described by Nitszch from Certhia 

 faviiliaris (European form), and while his description is somewhat 

 meagre, enough is given to distinctly separate it from this form. 



Colpocephalum quadrimaculatus, sp. nov. (Plate XXI, Fig. 4.) 



Male. — Body, length 1. 17 mm., width .49 mm.; whole body pale, with blackish 

 head and ventral thoracic markings in addition to the brownish spots and bands of the 

 head, thorax and abdomen ; abdomen with heavy lateral bands and median transverse 

 bands nearly reaching the lateral bands and separated by clear sutures. 



Head, length .27 mm. , width .41 mm.; front broadly and regularly rounded 

 beyond the anterior margin of the antennal fossse ; terminal segment of the palpi pro- 

 jecting ; two short and two longer hairs in front between the palpi ; one short one at 

 the palpi ; one short and one very long one just behind the palpi, and two long ones at 

 the anterior margin of the antennal fossse ; anterior and posterior angles of the temples 

 rounded ; occipital margin deeply concave, with occiput slightly convex ; eye undi- 

 vided, nearly obscured by a black fleck ; ocular fringe short and rather sparse for the 

 genus ; temples with four very long hairs, one short one and a bristle ; mandibles 

 small and pointed, blackish ; a black blotch at the base of the palpi and along the 

 inner margin of the antennal fossae ; a brownish band connecting the black blotches at 

 the palpi ; curving bands from the same point to the anterior angles of the occipital 

 signature ; occipital signature large and continuous with a median longitudinal band 

 on the prothorax ; a narrow, black, submarginal occipital border ; whole head clear 

 with the exception of the above-mentioned markings. 



Prothorax hexagonal, wider than long, with rounded, protruding lateral angles 

 furnished with a short bristle ; sides converging posteriorly (but not quite as much as 

 shown in the plate); a blackish blotch at the anterior angles, connected by a brown 

 transverse band ; a broad median longitudinal brown band, narrowing abruptly to a 

 point near the posterior margin of the segment, and with narrow brown bands (not 

 shown in plate) diverging from the point where the posterior constriction begins, to 



