98 GEO. H. HORN, M. D, 



The specimen before me is a female anJ therefore does not exhibit 

 fully the <!;eueric characters. The claws are simple at tip and merely 

 slightly broader at base without a tooth. The antenna) have the third 

 joint as long as the three following united. When the male is known 

 it will probably show characters in the claws more nearly like Euhria 

 than Ectopria. The palpi are wanting in my specimen. The tarsi 

 are as in Ectopria. 



A. quadriinaculatus n. sp. — Oval, slightly broader behind, elytra each 

 with two yellow spots. Antennae nearly half the length of the body, first joint 

 moderately stout, cylindrical, narrowed at base, second small globular, third 

 nearly twice as long as the first two and equal to the next three, 4 — 10 triangu- 

 lar serrate, eleventh longer than the tenth. Thorax semicircular with the apex 

 emarginate, base feebly bisinuate, disc convex with the posterior fovea, surface 

 Bhining, very sparsely punctate and with very little pubescence. Elytra as 

 wide at base as the thorax, very little longer than wide, disc moderately convex 

 with rather coarse punctures forming distant but irregular striae, intervals 

 densely punctulate-scabrous but moderately shining and with extremely fine 

 pubescence; each elytron with two yellow spots, one oblique a little in front 

 of middle, the second near the sutural angle smaller. Body beneath black, 

 moderately shining, finely sparsely punctulate and finely pubescent. Legs 

 black. Length .16 inch; 4 mm. (PI. I, fig. 10). 



Of the form of Ectopria but with more shining surface. 



One specimen, California, (Sauzalito ?). 



Tribe IV. — Helodini. 



Form usually oval, sometimes oblong, surface always more or less 

 pubescent. Head deflexed, usually more or less visible from above, 

 rarely concealed by a hood like projection of the thorax, clypeal suture 

 not visible. The prosternum is very short in front of the coxae and 

 is extremely narrow between them. The anterior coxae are long, 

 oblique, moderately prominent, received against the anterior portion 

 of the mesosternum, and without trochantin. The posterior coxae are 

 at least moderately dilated internally and contiguous. The tibise are 

 sulcate on their outer edge. The tarsi are of moderate length, the 

 fourth joint bilobed and always larger than the third and the claws 

 are simple. 



The labial palpi in all the genera except Cyphon have the third joint 

 inserted at the side of the second. The tarsi also exhibit two forms, in 

 one of which the upper side is bicarinate continuing the structure of 

 the edge of the tibia, in the other the upper side is simply convex. 

 The posterior tibial spurs exhibit a great variation in length, being 

 very small in most of the species but elongate in Scirtes. 



The under side of the head has a strongly marked subocular ridge 



