1899] ENTOMOLOGICAL NEWS. 241 



each a postericv lateral notch with the main carina of its own side 

 just behind the posterier transverse keel, (^ee fig. 2.) 



The cai'inae are lustrous in appearance like the oval markings be- 

 fore mentioned. 



The male pupa may be seen within the test described. It is about 

 two-thirds the length of the test. The head with its two dorsal 

 eyes is distinctly visible. The wing pads are already conspicuous 

 and the two tubercles which later give rise to the anal filaments ai-e 

 also seen flanking the partially developed stylus. 



The MALE of this species was rather plentiful in May, 1897, when 

 the form was first discovered ; but, while male tests have been found 

 since, no perfect males have been secured since. A drawing was 

 made, at the time mentioned, of a living male ; but it was done 

 without a camera lucida, and, as the creature was somewhat active, 

 the result was unsatisfactory. Mounted specimens, both in glycer- 

 ine and Canada balsam, became so distorted as to make either a 

 drawing or an adequate description well-nigh impossible. Thus it 

 was thought best to publish a meagre description of the sex rather 

 than await the reappearance of so evanescent a creature as a male 

 Pulvinarian. 



The male is a delicate two-winged fly, about 1.5 mm. long 

 and about 3 mm. in alar expanse: breadth of thorax about 

 .5 mm. The anal setae wei-e neai'ly equal to the trunk in 

 length, though, as these are merely waxy secretions and are 

 contiouTJsly growing, the lensfth undoubtedly varies in difi'er- 

 ent individuals. The color was the terneral color, that of the 

 newly emerged individual, which changes somewhat as the insect 

 flies about. General ground color pale brown, darker on the thorax, 

 with a dark brown band crossing the mesothorax at the level of the 

 wings. The legs and antennae pale yellow; wings hyaline, with a 

 rose-colored basal portion ; anal filaments white. The head is free, 

 rounded, but with the tronti produced into an obtuse angle. The 

 dorsal and ventral eyes are conspicuous, equal in size and very dark 

 brown in color ; the ocelli are not discernible in the mounted speci- 

 men. The antennae are long, slender and pilous, and of ten segments 

 (See fig. 9.) Segment 4 is much the longest; segments 6, 5 and 10 sub- 

 equal and next in size, being about thi-ee-fifths the length of seg- 

 ment 4. Next in length is segment 7 ; next 8 ; next 1 and 3, nearly 

 equal ; next segment 9 ; while 2, nearly spherical in shape, is the 

 shortest of all- The antennae in general compare closely with those 

 of the male P. innumerabilis (see above), except that no knobbed 

 hairs were observed on the distal segment. In fact, except for some 

 characters not observed in my species, and hence possibly over- 

 looked, the whole description of P. innumerabilis c^ tallies fairly 

 well with that under consideration, thus hinting that the true dis- 

 tinguishing specific characters are yet to be found. This, however, 

 is not true of the female, nor yet of the male test. 



As to the distribution : The insect was found on no other 



