Rhynchota .. . he anterior femora, second and tliird subequal in length,each a little longer than the fourth ; pronotum about as long asbreadth between the pronotal angles, the lateral margins oblique,the anterior narrowing to head, the posterior narrowing to apex,which is broadly obtusely angulate; hemelytra passing the VENTIDIUS. 157 abdominal apex ; rostrum short, scarcely passing the anterior coxae;legs slender, anterior femora about as long as the anterior tibia;,inwardly a little spinous at apices, intermediate femora longerthan posterior femora. (Macropterous form.) In the apterous or u
Rhynchota .. . he anterior femora, second and tliird subequal in length,each a little longer than the fourth ; pronotum about as long asbreadth between the pronotal angles, the lateral margins oblique,the anterior narrowing to head, the posterior narrowing to apex,which is broadly obtusely angulate; hemelytra passing the VENTIDIUS. 157 abdominal apex ; rostrum short, scarcely passing the anterior coxae;legs slender, anterior femora about as long as the anterior tibia;,inwardly a little spinous at apices, intermediate femora longerthan posterior femora. (Macropterous form.) In the apterous or undeveloped form the pronotum is considerablyshorter than broad. Allied to Metrocoris, but with the body shorter and broader, andwith hirsute antennae. 2930. Ventidius aquarius, Dist. A. M. N. H. (8) v, p. 150 (1910). Macropterous form.—Head and pronotum ochraceous, the latterwith a large cruciform fascia and the sublateral and apical marginsblack ; eyes black ; antennae black, base of first joint ochraceous ;. Fig. 84.— Ventidius aquarius. liemelytra black ; body beneath ochraceous ; legs and apex ofrostrum black, bases of anterior femora ochraceous ; acetabula andcoxae spotted with black; structural characters as in genericdiagnosis. Apterous form.—Body above ochraceous ; pronotum with anarrow sublateral fascia,angulated and reaching maigin at humeralangle, and two spots at centre of posterior margin continuedobliquely across mesonotum, black, other markings generally as in 158 APPENDIX.—HYDROMETRID^. macropterous form ; abdomen above ochraceous with the segmentalmargins black. Length, macropt. form 5; apt. form 4^ milHm. Hah. Travancore; Pallode, 20 miles of Trivandrum{Annandale). On roadside jungle-stream {N. Annandale), Genus METROCORIS. (Vol. II, p. 188.)Metrocouis staei. (Vol. II, p. 190.) The description previously given was after Dohrn and referredto the apterous form of the species. Since then from largecollections that have passed through mj hands I am no
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