TLIK CANADIAN KNTOMOLOGIST. 103 



THREE NEW COCCID.^. 



BY EDW. M. EHRHORN, MOUNTAIN VIEW, CAI,. 



Nidularia (?) califoniica, n. sp. 



$ covered with wax resting on a thin white secretion. Colour 

 orange-ferruginous, shiny, varying greatly in size and shape. The 

 average specimens are about 3 mm. long, 1 5^ wide, and i mm. high ; 

 generally pyriform, but it is difficult to give any special form, as the 

 insect adapts itself to the position on the plant. 



After boiling in K. H. O. derm is colourless, mouth-parts, glands 

 and caudal portion remaining brown. There are indications of antennse, 

 which are very small and very bristly, segmentation not visible. There 

 are four large disklike spiracles on the ventral surface, each disk contains 

 numerous glands. There is a row of thick, blunt spines on each margin, 

 and one on the dorsum. These marginal spines are shaped like a spear- 

 head set in a socket. With these there are several rows of round 

 spinnerets. Rostrum attached to a prominence, which, however, varies 

 with the position the insect adopts. 



End of abdomen strongly chitinized, with the margin strongly 

 crenate and plicate, and deeply cleft in the middle as in Lecanium. 

 Numerous round glands scattered near its margin, and several strong 

 spines on margin at intervals. Anal ring with numerous (eight ?) stout 

 hairs. On the ventral surface opposite the anal ring there is a round pro- 

 jection with four stout spines. This is inserted in the cleft of the anal lobes. 



Hab. — On the roots of Bunch grass. Mountain View, Cal. 



Prof. Cockerell has examined specimens, and says that this strange 

 coccid will probably form a new genus. 

 Dadylopius eriogoni, n. sp. 



$ enclosed in a densely woven white felt sac about 2^ mm. long 

 and I mm. broad ; also secreting considerable loose cottony matter. 



$ colour light yellow, slightly covered with white powder, about 2 

 mm. long and i mm. broad. Last segment of body with two short white 

 filaments. Tegs and antennae light brown. Young larvje and eggs 

 light yellow. When boiled in K. H. O. turns brown. Numerous very 

 fine slender spines on dorsum. Antennae yjointed, quite bristly. 

 Sequence of the joints of the antennje is quite variable. Joint 7 longest, 

 then comes 3, then i and 2, but these are sometimes longer than 3. 

 Joint 4 is next, but sometimes joint 6 is longer. Joint 5 is generally 

 shortest. Formula approximately, 7312465. 



