2 



SUPPLEMENT TO PSYCHE. 



[July 1895. 



marked distinction between tliis and T. 

 larreae-, the latter not being considered to 

 have any medicinal qualities. 



It is certainly the most beantiful and 

 striking lac I have ever seen. 



Tachardia pustulata, n. sp. — ? scales 

 more or less massed together, sometimes 

 single, deep crimson, about the color of 

 black-currant jelly, moderately shiny, with 

 small, pellucid pustule-like prominences. A 

 single scale is 34 mm. long, 3 wide and 24 

 high, but there is variability in size, some 

 being larger. 



Very young scales, only about i4 mm. 

 long, are more pellucid, and about the color 

 of guava-jelly, with three irregular blunt rays 

 on each side, and a dorsal tooth-like promi- 

 nence resembling that of adult T. cornuta. 



$ subglobular, colorless when boiled in 

 alkali. Rostral loop very short. -'Tail" 

 broad, anal ring with 10 hairs, which are 

 short and straight. Spine thorn-like, broad 

 at base, rapidly narrowing to its almost 

 needle-like terminal half; or sometimes 

 stouter. Lac-tubes conical, broadening at 

 base, truncate as usual at ends, terminal mass 

 brownish, nearly a hemisphere seen from 

 the side. Groups of glands inconspicuous, 

 irregular in outline, with about 12 orifices. 



Young larva like that of T.fulgeiis. 



Embryonic or newly-hatched larva with 

 6-iointed antennae; joints 1,2,4 ^""^ 5 short, 

 3 and 6 long; 5 swollen, with a whorl of 

 hairs; 6 with i long and several short hairs. 

 Legs ordinary, claw very slender. Anal 

 ring with 6 stout bristles. 



Hab. T. pHstiilaia was found by Prof 

 Tourney near Phoenix, Arizona, early in the 

 spring of 1894. It occurred on a small per- 

 ennial composite which was unknown to 

 Prof. Tourney, and being without flowers or 

 fruit, could not be identified. It has linear 

 leaves. 



Ceroplastodes acaciae, n. sp, — ^ scales 

 clustered on twig. Scale strongly convex, 

 snow-white, very like C niveus, but rather 

 smaller, and more nodulose, the dorsum 



being co\-ered by irregular prominences. It 

 is, however, less nodulose than C. daleae. 

 Length of scale about 3 mm. 



9 not staining liquid wlien boiled; derm 

 reddish-brown. Antennae S-jointed, 2 

 broader than long, 3 longer than broad, 

 and decidedly longer than 2 or 4. 4 longer 

 than broad, somewhat longer than 2. 5 sub- 

 equal with 4. 6 shorter, 7 shorter still, S 

 longer than 7. Rostral loop very short 

 Legs ordinary, trochanter with a moderate 

 bristle. Tarsus not so very much shorter 

 than tibia, though distinctly so. Digitules 

 ordinary not very long. Anal ring with 

 very numerous hairs; anal plates pale 

 brownish. 



(J scales elongate, white, nodulose, with a 

 marginal fringe of small nodules. Length 

 about 2 mm. or slightly more. 



Young larvae naked, reddish-brown, gran- 

 ular, distinctly segmented, not particularly 

 elongated. 



Hab. On Acacia coiislricta, June, 1S93, 

 between the University of Arizona and 

 Tucson, collected by Prof. J. W. Touniey. 

 Prof Toumey states that he has seen the 

 scale several times since on this species of 

 Acacia, but never on other plants. The 

 food-plant of the Mexican C. niveus, to 

 judge from the twigs the type-specimens are 

 on, is also an Acacia, but a different species. 



This is only the third species of the genus 

 discovered. 



Toumeyella, n. subg. of Lecanitim. — J 

 scale convex, embracing twig, moderately 

 liard ; dorsum shiny, with numerous broad, 

 white, waxy rings on which are sometimes 

 small black spots. Adult ? with the legs 

 apparently absent : the antennae very short, 

 rudimentary, 6-jointed. Embryonic larva 

 with a pair of extremely long bristles on each 

 side, each representing the larger stigmatal 

 spine. Type Z,. mirabile n. sp. This will 

 doubtless be considered a distinct genus 

 hereafter, but it is preferred to leave it as a 

 subgenus of Lecanitim until the whole Leca- 

 niine group can be generically revised. 



