June, 1909.] Ohio Forms of the Genus Lepidocyrtus. 531 



II, which is not true for L. pusillus. The pigment in L. purpureus 

 also presents a decidedly mottled appearance, especially in 

 mounted specimens. 



L. purpureus may be synonomous with L. metallicus L. 

 cyaneus and L. iricolor, but according to Packard's description 

 L. metallicus differs in the following respects. The spring is 

 short and thick, the manubrium uniisuall}^ broad, and the 

 mucrones extra large. It also seems to differ in its blackish- 

 bronze color. As before stated, L. iricolor is not sufficiently 

 characterized to identify with any of these species. 



L. purpureus is very abundant about Columbus, and may be 

 found in abundance under loose bark of fallen trees, as we'll as 

 in the other usual localities for Lepidoc3'rtus. It seems to live 

 in the confinement of artificial cells about as well as in its natural 

 surroundings. In coloration it is one of our most beautiful 

 species. 



Life History OF Lepidocyrtus Purpureus. PI. XXIX. The 

 young of the above species, closely resemble the adults. In 

 color they are a lighter blue, quite silvery to the naked eye, not 

 showing the purple reflections so marked in the adults. The 

 head seems quite out of proportion to the rather slender body. 

 The larvae of L. purpureus are remarkedly agile, thus very hard 

 to study alive for structural details. Mounted specimens show 

 every detail of character in the claws, spring and antennae 

 found in the adult, even to a constancy in the arrangement of 

 the hairs over the body. The black eye spots are very noticeable 

 at the bases of the antennae, and plainly visible from above, in 

 contrast to L. sanguineus. From the colonies observed it seems 

 that eighteen to twenty eggs may be produced at one time by 

 this species. Larval forms measure from 0.20 mm. to 0.25 mm. 

 in length. 



■^fe ' 



Lepidocyrtus Sanguineus, n. sp. PI. XXX. 



(Description taken from living and mounted specimens.) 



Color: white, with iridescent scales, sometimes with a bluish cast. 

 Antennae: segment III shorter than II; IV nearly or quite twice as long 

 as III, or equahing II plus III; length of segments slightly variable; 

 densely covered with short hairs. Eyes: red, unusually small with single 

 ocellus, appearing at side of head near bases of antennae as mere specks. 

 Plainly visible on ventral surface. Fringe of clubbed hairs on mesono- 

 tum clubbed ; various long, barbed hairs scattered over the body, legs and 

 head ; four long, barbed hairs are found regularly on both abdominal seg- 

 ments II and IV. Scales rectangular, largest on the manubrium. Meso- 

 notum in dorsal view fully four times as long as metanotum. Abdominal 

 segment IV four times as long as III. Legs: tarsi bear two claws, the 

 larger with two teeth ; the smaller claw nearly straight with a slight curve 

 at its tip. A long hair is present on the tibia of each foot, but is not a 

 true tenent hair in function. Spring: manubrium densely covered with 

 hairs and large, broad scales; dentes somewhat longer than manubrium, 



