WEST INDIAN MELOIDAE — SELANDER AND BOTJSEMAN 205 



Haag-Rutenberg's (1879) monograph is the standard reference for 

 the genus, but it should be noted that a number of species and varieties 

 have been described since its pubUcation. 



Tetraonyx quadrimaculata (Fabricius) 

 Figure 1 



Apalus 4 maculatus Fabricius, 1792, p. 50. 



Mylabris ruficollis Olivier, 1795, pp. 14-19, pi. 2, fig. 17. 



Tetraonyx 4-maculatus, Haag-Rutenberg, 1879, p. 308.— Leng and Mutchler, 1917, 

 p. 216. 



Tetraonyx quadrimaculatus , Chevrolat, 1877, p. ix.— Fleutiaux and Sall6, 1889, p. 

 433.— Gundlach, 1894, p. 318 (in part).— Champion, 1896, p. 53.— 

 Borchmann, 1917, p. 113 (in part) .— Wolcott, 1924, p. 85; 1936, p. 209.— 

 Denier, 1935, p. 168 (in part). 



Nemognatha cubaecola, Gundlach, 1891, p. 258 (in part). 



Tetraonyx quadrimaculata, Leng and Mutchler, 1914, p. 467 (in part). — Black- 

 welder, 1945, p. 487 (in part).— Wolcott, 1950, p. 321 (in part). 



Tetraonyx quadrimaculatus var. bimaculatus, Staig, 1940, p. 142, pi. 57. 



Description: Head, antennae, labrum, and mandibles black; max- 

 illae and labium yellow except last segment of palpi infuscate. 

 Pronotum and scutellum orange-yellow. Elytra orange-yellow, each 

 with a black spot covering most of basal fourth and another covering 

 most of apical two-fifths; hind margin of basal spot nearly straight; 

 basal spot separated from sutural margin of elytron by a distance 

 equal to or slightly greater than half the width of the scutellum at 

 its apex and from lateral margin by about twice this distance; apical 

 spot attaining lateral margin and apex of elytron, in most cases also 

 attaining sutural margin but occasionally very narrowly separated, 

 especially anteriorly. Wings pallid brown with dark apex. Under 

 surface orange-yellow, except mesothorax and metathorax (or at least 

 the pleurites), largely black, and the last one or two abdominal sterna 

 of the same color. Femora orange-yellow except apices broadly 

 black; tibiae and tarsi black. Pubescence dense, recumbent through- 

 out, of the same color as surface except always yellow on under 

 surface of thorax. Length, 6-12 mm. 



Head sub triangular or triangular; occiput nearly straight; surface 

 even on vertex, a little roughened on front, coarsely, densely punctate, 

 dull; a fine smooth median line usually indicated from occiput to 

 center of front. Eyes large, weakly emarginate. Antennae reaching 

 (over vertex) base of pronotum, compressed-monilif orm ; segment I 

 reaching about one-third distance across eye; II less than half and 

 III fully half as long as I; III to V progressively wider and less com- 

 pressed; VI to X similar to V, about one-third longer than wide. 

 Pronotum transverse, one-half to nearly three-fourths wider than 

 long, obviously wider than head; base sinuate medianly; hind angles 

 distinct but not sharp; front angles well rounded; disk convex, 



