si/r-iVCE-GOSs/j: 



z^i 



ninrkiii);s which I have always iiotit'eil in mori ore 

 quilc ahseiit in the spc-cimviis sent. This may lie 

 within the vnrialioii <if the species, and it wutiUlscem 

 ^'fi', for the present at least, to refer your orange 

 ' imens to mori." While I think it Is not improb. 

 ..■)lv.' that we have to Uo with n distinct, and new, 

 species, it will not he amiss to follow I'rofessor 

 fjiiaintance's suggestion for the present. 



At present the creatures are not nearly almndunt 

 enough in Mesa to make it worth while to take mea- 

 sures against thcin. 



Other species of AUiirodes were found o;i ash at 

 I'hoenix and on maple at Mesa, but they were not 

 numerous enough to do any harm. They are the 

 re<l-l)anded vine-hopper {Diiraiunra cockerelli Gil- 

 lette) and the variegated vine-hopper (Tyfhloeyha 

 viiliurala l''itch). These two species of vine-hoppers 

 were observed to be eomnu)M on the grape-vines at 

 the experiment station at I'hoenix, .Arizona, October 

 Qth. The red-banded species was the more abun- 

 ilant. It is of a light yellow colour with greenisli 

 eyes, thorax nuirked with orange; wings with a 

 broad oblitpie irregular band of the brightest red 

 and a small black spot not very far from the end. 

 The variegated species has a darker tint, being varie- 

 gated or marbled with white, didl red and grayish. 

 The landed species was also common at Mesa. In 

 the Mesilla \'alley of New Mexico the vine-hoppers 

 are Dicraneiira locivrcl/i and Tyf>hlocyba coloradeiisis, 

 but in the .Salt River Valley T. vulmrata takes the 

 place of T. loloradtiisis. 



It Ls not usually worth while to lake any measures 

 against these insects in New Mexico, and probably 

 they are no more troublesome in Arizona. It is de- 

 sirable, of course, to collect and burn up all the 

 leaves and trash about the vineyards in the winter, 

 so as to get rid of the hiberiialing hoppers. 



TiiK Loct'sr-TRi;i-; .Siiie[.ii-.Siai.i;. 



The typical form of this scale (Lecaniiini robini- 

 anun Douglas), on locust, was not observed ; but 

 what must be regarded as a variety of it was found in 

 I'hoenix on os,Tge-orange and pepper tree. The scale 

 is very convex, dark brown, hard, about or nearly a 

 ipiarter of .an inch long. So far as observed, it was 

 not abundant enough to call for remedial measures. 

 Mr. 1'. J. Parrott, of the Kansas .Agricultural College, 

 has been so good as to prepare a description of the 

 I'hoenix specimens, which is given herewilli for the 

 use of entomologists. 



" Leiaiiinm(Eit/c^aiiiiiiii) ro/ii'iiianim, var. I'eniale, 

 5 to 6 mm. long ; 4 mm. wide ; 3 to 4 mm. high ; 

 hemispheroidal, che.stnut-brown, somewhat shining, 

 v\liich is often concealed by a slight frosting. Some 

 specimens are quite sn\ooth and retain their form 

 without foldings, while others arc plicate and pitted. 

 .Specimens boiled in caustic potash give a reddish- 

 brown colouring matter, and do not bleach readily. 

 Mouth-parts prominent. .Antennae and legs are 

 apjxirently deciduous. The antenn.ae are seven- 



jointed, the third joini being the longest, and ih. 

 sixth the shortest. The mca^uremcnts of the joint- 

 of one anteiuta were as follows, in micromilliincters : 

 (I) 49; (2) 28; (3) 70: (4) 20; (5) 21 : (6) 14; 

 (7) 35, Kormula 372546. I.c^s rather small anil 

 slender, measuring ;ls follows : coxa, 70-91 ; femur 

 with trochanter, 1 19-140 ; tibia, 70105; tarsus, 

 56-70; claw, 12-21 micromillimeier^. 



"These descriptions from specimen^ from osage- 

 orange agree with the typical L. ruhiiiiariim in tie 

 fine punctuation along the lateral margin, and in the 

 presence of the large gland pits, but differ from it 

 in that the tesselature is very marke<l, particularly 

 along the margin. Specimens from pepper tree 

 (Schiiiiis molle) present several slight differences. 

 They average about 5 mm. in length, 4 mm. in 

 width, and fnim 3-5 to 4 in height. The flatter 

 specimens resemble those of the osage-orange very 

 closely, while the more convex si^ecimens are quite 

 smooth, and less shiny, and possess little or no 

 frosting. Boiled in caustic potash they give a 

 reddish-brown colouring matter, and become very 

 transparent. Legs and antennae are not easily 

 obtained. The antennae are seven-jointed ; the seg- 

 ments measure as follows in micromillimeters : — 

 (I) 14; (2) 46: (3) 79; (4) 25: (5) 23; (6) 23; 

 (7) 41. l'"ormula 3274 (56). The measurements of 

 the parts of the legs are as follows : — coxa, 70 ; femur 

 with trochanter, 140 ; tibia, 98 ; tarsus, 70 ; claw, 

 20 micromillimeters." (I'. J. Parrott.) 



The (ji.n'ACKOUs Locust. 



.A variety of Melanopliis olivaccus Bruner (MS. 

 Scudder) w;\s found in Mesa and I'hoenix in October 

 on the orange-trees ; but so far as observed, not 

 abundant enough to do any serious damage. The 

 typical M. olivaccus is from Los .Angeles, California : 

 the Salt River Valley insect is a distinct variety or 

 sub-species, having the following characters : — Male 

 cerci not quite so broad at apex as in type. Lateral 

 angles of pronotum with a more or less well-defined 

 narrow pale stripe, edged t)elow with black ; disc of 

 pronotum var)'ing from dark olivaceous to a more 

 ferniginous tint, and the transverse sulci are usually 

 marked i>ut in lighter colour. Femora largely scarlet 

 on the inner side. This must not be confused with 

 i)/. t/tomasi, from which it is easily known by the 

 paler, nearly uniform colour and measurements. The 

 female M. thoiiiasi has short tegmina, not reaching 

 the tip of the abdomen. The following measure- 

 ments are in millimeters :— 



Length t. ■ Hind 



ofbSiy Tegm.na f^„„^ 



M. oih^aceits. 



type ; male . . . . 



23 





30 



13 3/4 



,, 



,, female 



29 





25 1/2 



15 3/4 



,. 



Arizona variety ; 













male .. 



28 





24 



16 



,, 



,, female 



38-^ 



•t^ 



26 1/2-29 



20-21 



^f. MoM/rtj/.fromTutaros.'i.N.M., 













male . . 



31 





23 



17 



» 



female 



35- 



40 



22 1/2-23 



iS-i9 



