145 



flat beneath. Labium reaching well beyond hind coxae. Anten- 

 nae 5, Y, 8, 16. I can see only two odoriferous orifices (on the 

 5th and 6th.) 



Thi/rd instar (?), like the last described, but less rotundate 

 and the dark coriaceous areas on tergites so much larger, that 

 the blood red parts consist only of a sublateral curved hand, 

 three anterior transverse stripes and 2 or 3 posterior. Head 

 much as in the 5th instar. Labium reaching to middle of 

 abdomen. Antennae 10, 17, 15, 22. Orifices as before. 



Fourth iyistar black, like the third, but labium reaching 

 little beyond the hind coxae. Orifices, etc., as before. 



The fifth instar is dark dull indigo blue; the abdominal 

 sutures and submembranous parts blood red; the sterna medi- 

 ally and the labium partly, brownish yellow. Leg-hairs 

 testaceous. Vertex more rounded and wider anteriorly than in 

 the adult, also more concavely sinuate, while the head and 

 pronotum are flush all along, (figs. 3-4:). Head and nota acicu- 

 late. First segment of antennae not reaching to the apex of 

 the vertex; second segment the longest, more than twice as 

 long as the first and one-fifth longer than the third which is 

 a trifle shorter than the fourth C^). Labium reaches just 

 beyond the middle coxae. Sterna longitudinaly sulcate. 

 Tarsi all bisegmentate. Abdomen transversely striate above 

 at least in the middle. Beside the usual orifices, there are a 

 pair, widely separated, on the fourth tergite. 



3 Geotomtis pygmaeus Dallas. 



This species is easily separated from the two preceding by 

 the colour, minute size and bristly legs. The Cydninae, to 

 which subfamily it belongs, are an offshoot of the Pentatominae. 

 I can not give any information on the metamorphoses of this 

 form, but suspect that the ova are dropped at the roots of small 

 plants, and that the nymphs are to be found there or under 

 stones, possibly in ants' nests. Mr. Swezey has found the adults 

 under dried cow dung. 



The present species has been described under eleven names 



(19) As in other hetnipterous nymphs, abnormal segments occurs. 

 Thus in one nymph in my collection, the two antennae are discrepant, 

 one normal, the second segment in the other only half the length of its 

 corresponding segment. 



