102 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 60. 



paragenitals wanting; marginal and siibmarginal pores present, ar- 

 ranged as follows : three, one median, between median lobes, one be- 

 hind each median lobe, one behind outer margin of same, two 

 between first and second lobes, one or two behind second lobe, three, 

 in a more or less distinct row, between second and third lobes, one 

 behind third lobe, about five in and just anterior to both the first 

 and second marginal teeth; dorsal pores rather numerous, indis- 

 tinctly differentiated from marginal, chiefly marked by position 

 and somewhat smaller size, arranged in fairlj'^ distinct rows, about 

 five in inner row, three in both posterior and anterior group of 

 next row, two in the following row, about five in posterior group and 

 5-7 in anterior group of next row ; ventrally with a few micropores 

 and some setae, the latter mostly around the vaginal opening ; ante- 

 rior to two median pairs of lobes and around anal opening slightly 

 more heavily chitinized than in remainder of pj'^gidium. 



Intermediate stage feTnale. — Resembling the adult, differing chiefly 

 in the reduction in size and numerical quantity of the lobes, pores, 

 gland spines, etc., as already described for the adult. 



Larva. — Very unfortunately no larvae seem to be present in the 

 type material, and it has not been possible to make out the larvel 

 characters from the exuviae available for examination. 



Cotype.—C2,t. No. 24777, U.S.N.M. 



From a comparison of the adult females of the species which have 

 been included in this genus, the writers consider that the inclusion of 

 C. hainbusicola (Cockerell) and C. argentota (Cockerell) is probably 

 entirely incorrect. The position of the remaining species assigned 

 here by Leonardi appears to be debatable, and can probably not be 

 settled until a revision of Lepidosaphes is undertaken. 



The following generic diagnosis has been based chiefly on the type 

 species. 



GENERIC DIAGNOSIS OF COCCOMYTILUS. 



Diaspine forms probably closely related to Lepidosaphes, appar- 

 ently differing from that genus, as represented by the type species 

 chiefly in the absence of paragenitals in the adult female, and the 

 tendency of the anterior portion of the body to become heavily chiti- 

 nized at maturity ; body mytilaspiform, antennae very small tubercles 

 with setae, spiracles with a few pores, cephalothorax with small 

 setae, with small tubular ducts, and some gland spines, margins of 

 abdominal segments with the same; pygidium somewhat chitinized, 

 lobes present, gland spines present, marginal setae normal, without 

 incisions with thickened ed<res or chitinous paraphyses, anal opening 

 located near base of pygidium, small, circular to oval, paragenitals 

 wanting, marginal pores present, axis longitudinal, dorsal pores pres- 

 ent, fairly numerous, in rather distinct rows, axis more or less longi- 



