THE CANADIAN ENTOMOLOGIST 139 



from a pond east of Dunedin on Jan. 19 and Feb. 9, 1913, eight 

 specimens having been secured. It has not since been found though 

 especial search has been made for it. It occurs on the underside 

 of wholly immersed boards, and is only detected when it moves. 

 LeConte described it from Louisiana in 1863, from specimens 

 taken by Dr. Schaum, and it has not before been recorded from 

 Florida. 



Philhydrus estriatus, sp. nov. — Broadly oblong-oval, feebly 

 convex. Above black, shining, the side margins of thorax and 

 elytra reddish-piceous; under surface dark piceous, the antennae, 

 palpi and tarsi paJer. Thorax and elytra very finely, rather closely 

 and evenly punctate, the elj^tra without trace of sutural striae, 

 each with two irregular rows of large punctures located along the 

 lines of the fifth and seventh striae, were the latter present. Under 

 surface finely and very densely punctate. Mesosternal crest low 

 with front edge strongly oblique. Length 6.5 mm. 



Described from three specimens taken from ponds on Jan. 

 21 and March 23. Intermediate in' size between consors and 

 perplexns of LeConte, being smaller and much less convex than 

 consors and larger and more broadly ovate than perplexns. In both 

 those species the punctuation is much coarser, the sutural striae 

 very distinct and the coarser punctures of elytra in four rows. 

 From P. cinctus Say, which it resembles in colour, estriatus is 

 separated by its less convex form, absence of sutural striae and 

 oblique front edge of mesosternal crest. 



Helocharis maculicollis Muls. — A female of this species, 

 taken Feb. 25, had a large mass of eggs attached to the underside 

 of the abdomen. They were very regularly placed in a double 

 layer, the median portion of 12 eggs consisting of two rows, each 

 made up of three eggs placed end to end. On each side of this 

 longitudinal median axis and arranged at right angles to it were 

 two rows, each composed of nine eggs placed side by side. There 

 were thus 36 eggs in the double layer each side of the median sup- 

 port, or 84 in the whole mass. I can find no previous record of the 

 egg-bearing habit of this species. 



Arthmius gracilior Casey. — Taken in some numbers by sift- 

 ing vegetable mould in a low, wet thicket. Originally described 

 from Tampa, it was placed as a synonym of Batrisns globicollis 



