December 1S93. 



PSTCHE. 



571 



area about thirty feet square that is shut 

 in on three sides by masonry and solid 

 rock, the open side being- toward the 

 north. In the coolest, darkest, dampest 

 nook at the foot of the dam were a few 

 more hydrophilus, not quite standing in 

 the water, but on very moist rock. 



Nearly half of my specimens have 

 become greasy since capture, — a very 

 rare trouble among the species of this 

 family. It suggests a modification of 

 their tissues from the normal type of the 

 family to adapt them to the low temper- 

 ature under which they exist. 



LlANCALUS SIMILIS, n. sp. 



$ . Differs from the foregoing as follows: 

 thorax much duller in color; hypopvgium 

 destitute of filaments, with only minute 



lamellae; fore metatarsus hardly one-fourth 

 the length of the following joint, which is a 

 little enlarged, with a slight fringe on the 

 sides and a dense short brush below, the 

 three following joints of equal length; wings 

 on the apical two-fifths clouded with brown, 

 theinfuscated area rather indefinite in extent; 

 margin of the wing not excised, third vein 

 ending before the apex. 



Length. 6.1 mm.; of wing, 7 mm. 

 $ . D i ff e r s fro m hydrof h ilu s on \y in having 

 the general color more pure green, without 

 the extreme contrasts of blue and bronze; the 

 wings of one specimen have more brown, 

 which takes the form of three well defined 

 spots, but this is evidently variable. 



One male, two females, Washington (state), 

 University of Kansas collection. 



The principal differences between this 

 species and querulus are in the structure of 

 the male fore tarsi. 



TWO NEW FORMS OF DIASPINAE. 



BY T. D. A. COCKERELL, LAS CRUCES, N. MEX. 



(1.) Aspidiotus uvae, Comstock var. 

 coloratus, n. v. 



^. Scale about i£ mm. wide, broad oval, 

 flat, dull pale orange-brown, exuviae con- 

 colorous, thinly covered, first skin rather 

 pale. 



$ . Broad pyriform, pale orange. Three 

 pairs of lobes visible in immature specimens, 

 but the middle pair only prominent. In the 

 adult only two pairs of lobes are present, 

 and of these the second pair might almost be 

 described as rudimentary. The middle lobes 

 are close together but not touching, promi- 

 nent, squared, notched on each side. The 

 plates and incisions are practically as in uvae, 

 so also are the anal and genital orifices — 

 thousrh the former in Comstock's figure 



(Rep. U. S. Dept. Agr. for 1SS0) appears to 

 be too small. The terminal segments are 

 striate after the manner of ostreaeformis, 

 etc., which I find is also the case with uvae. 

 The grouped glands differ a little from uvae ; 

 as the median group, represented in uvae by 

 two orifices, is wanting in coloratus ; and the 

 anterior and posterior lateral groups of 

 coloratus run together, forming one long 

 group of 11 to 15 orifices on each side — or 

 may be separated by a short interval, in 

 which case the cephalolateral group has 

 about S, and the caudolateral about 9 orifices. 



Eggs bright lemon yellow. 



$ scale elongate oval, with the exuviae 

 towards one end. 



Hab. Las Cruces, New Mexico, 3,800 ft. 

 alt., on CAilopsis; scales crowded on the 



