349 

 Leech and Chandler: Coleoptera 



times covered by the water, for I have on several 

 occasions pried them out from their retreats which 

 had boon but recently uncovered." 



Endeodes belongs to the subfamily Malachiinao, 

 characterized by extensile membranous vesicles on 

 the prothorax and between the metathorax and abdomen 

 (fig. 13:44). Many species of Malachiinao look like 

 cantharids, and the family Melyridae has been included 

 in the Cantharoidea, but belongs in the Cleroidea. 

 The larvae of Endeodes spp. occur with the adults, 

 and resemble clerid larvae. 



Kay to the Specie* of Endeodes Lee. 

 Adults 



1. Each elytron at least twice as long as wide 2 



— Each elytron not much longer than wide 3 



2. Elytra concolorous, ferrugineous 



blaiadelli Moore , 1954 



— Elytra of 2 colors, ferrugineous basally and black 

 apically basalis (LeConte) 1852 



3. Legs, antennae, and mouth parts darker than thorax 

 4 



— Legs, antennae, and mouth parts pale 



insularis Blackwelder 1932 



4. Head black collaris (LeConte) 1852 



— Head reddish rugiceps Blackwelder 1932 



Fig. 13:44. Melyridae, adults, showing dorsal surface on left 

 tide and ventral on the right, o. Endeodes collaris; b, Endeodes 

 >asalis (Blackwelder, 1932). 



3ASEY, T. L. 

 1885. New genera and species of California Coleoptera. 



Bull. Calif. Acad. Sci., 1:283-336, 1 pi. 

 1893. Coleopterological notices V. Ann. N.Y. Acad. Sci., 

 7:281-606, 1 pi. 

 3HAMBERLIN, J. C, and G. F. FERRIS 

 1929. On Liparocephalus and allied genera (Coleoptera; 

 Staphylinidae). Pan-Pac. Ent., 5:137-143; 5:153-162, 

 5 compound text figs. 

 ^ENYES, A. 

 1918. Family Staphylinidae, subfamily Aleocharinae, 

 In Genera Insectorum, Coleoptera, Fasc. 173A, pp. 

 1-110, 15 figs. 

 1920. Same, Fasc. 173B, pp. 111-414, 97 text figs., 

 7 colored pis. 

 iAUNDERS, L. G. 

 1928. Some marine insects of the Pacific Coast of 

 Canada. Ann. Ent. Soc. Amer., 21:521-545, 9 com- 

 pound text figs. 



Family MELYRIDAE 



rhe species of one genus of this family are restricted 

 x> the seashore of western North America, from British 

 Columbia to Baja California. Endeodes spp. are small, 

 wingless, yellow, or orange and black predaceous 

 aeetles. Blackwelder (1932) records finding Endeodes 

 ". . . near high tide mark but definitely in the damp 

 areas wet regularly by high tides. They were all found 

 under rubbish, especially boards." In an unpublished 

 manuscript the late E. C. Van Dyke wrote "Ordinarily 

 they are to be observed running over the rocks and 

 drift wood situated above the high tide line, though 

 they often frequent the inter-tidal area. They are at 



REFERENCES 



BLACKWELDER, R. E. 



1932. The genus Endeodes LeConte (Coleoptera, 

 Melyridae). Pan-Pac. Ent., 8:128-136, 3 compound 

 text figs. 

 MOORE, IAN M. 



1954. Notes on Endeodes LeConte with a description 

 of a new species from Baja California (Coleoptera: 

 Malachidiidae). Pan-Pac. Ent., 30:195-198. 



Family EURYSTETHIDAE 



The four known species of Eurystethes occur in 

 the intertidal zone of the seashore. Two are found on 

 the coast of California; one (E. californicus Mots- 

 chulsky) ranges from the Aleutian Islands to Van- 

 couver Island, but not to California; the last is known 

 from Robben Island, near the east coast of Sakhalin 

 Island, U.S.S.R., just north of Japan. 



The flattened form of these slow-moving beetles 

 and their larvae enables them to live in the crevices 

 of rocks in the intertidal area, commonly in the bar- 

 nacle zone. There they occur in colonies, and are 

 presumed to feed on mites and other animal organisms. 

 Adults of the California species are 2 to 3 mm. long, 

 black or dark metallic green above, brown below, 

 wingless, with sparse short hairs. The larva and 

 pupa of E. californica have been described; the larva 

 (fig. 13:45a) has four urogomphi, an up-curved outer 

 pair, and a smaller inward-curving inner pair; the pupa 

 (fig. 13:456) shows the wide separation of the hind 

 coxae, so characteristic of the adults. 



