6 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 60. 



derm with trilocular center circular pores arranged in four longi- 

 tudinal rows dorsally and two rows ventrally, and in addition with 

 thirteen pairs of the heavy short-tubular marginal ducts, each duct 

 trilocular and giving off three glassy filaments which form a single 

 thread; derm with five more or less distinct double rows of stout 

 spines dorsally, one median, one on each margin, the other two in- 

 termediate, each accompanied by slender setae, and ventrally with 

 rather numerous but scattered slender setae; anal opening a short 

 tube surrounded by a pore collar; with four small circular ventral 

 cicatrices on each half, these curving forward and out. 



The following generic diagnosis has been drawn up from the 

 preceding description, and includes only the type species, as the 

 writers are unable at this writing to cite any other species as belonging 

 definitely with M. fuscus, although Monophlehus crawfordi Maskell 

 and var. pilosior Maskell seem very closely related and may prove 

 on thorough study to be congeneric with M. fuscus. 



GENERIC DIAGNOSIS OF MONOPHLEBULUS. 



Monophlebine coccids; adult female elongate ovate, covered with 

 loose secretion containing numerous glassy threads; probably not 

 secreting an ovisac; antennae 7-segmented, legs well developed, 

 normal; with two pairs of thoracic and seven pairs of abdominal 

 spiracles ; derm with two sorts of circular multilocular disk pores, and 

 large trilocular tubular ducts; with slender setae, large tapering 

 setae, and stout lanceolate spines; condition of anal opening and 

 ventral cicatrices not known; intermediate stages not known; larva 

 elongate oval, antennae 5-segmented; legs normal, claws with digi- 

 tules and denticle; with two pairs of thoracic and seven pairs of 

 abdominal spiracles; body with longitudinal rows of trilocular disk 

 pores and with a marginal row of large trilocular tubular ducts 

 around the whole body ; derm with dorsal and marginal rows of stout 

 spines, and with slender setae dorsally and ventrally; anal tube 

 short, surrounded by a pore collar; four pairs of ventral circular 

 cicatrices, and a single pair of long differentiated terminal setae. 



This genus appears, on the basis of such study of other Monophle- 

 bine genera and species as has been possible, to be more closely re- 

 lated to the group including WalkeHana^ Lophococcus^ and Aspido- 

 proctus^ than to any others, although it does not possess so great a 

 variety of either glands or spines in its derm as do these other genera, 

 and there appears to be no tendency towards the development of the 

 internal pouch or marsupium, which is also found in the latter 

 genera. 



Besides the type, one other species, M. townsendi Cockerell, has 

 been proposed for inclusion in this genus, but this has already been 



