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Show 1894.] HEMIPTERA-HETEROPTERA OF GRENADA. 221 Specimens of both sexes were taken on the Mount Gay estate, between September 21 and 26, on the surface of water. 6. MICROVELIA, sp. ? A small insect, numbered 112 aud 122, belonging to this genus was found on stagnant water at Beaulieu and Woburn; but the specimens are possibly nymphs and too undeveloped for specific definition. HEBRUS, Curtis. 1. HEBRUS CONCINNUS, sp. nov. Form of H. pusillus, Fallen. Fuscous or rust-brown above, minutely pubescent, with the disk of pronotum moderately flat and the collum well defined and fulvous. Head nearly as long as the pronotum, dark brown, minutely scabrous, tinged with rufous at tip; antennae dusky testaceous, sometimes fuscous on the tips of the two basal joints, the first of these a little longer than the second, generally paler at base, the three following ones very slender, set with erect pubescence, the third longer than either of the following ones, the fourth and fifth subequal; underside of head and the bucculae testaceous; the rostrum pale testaceous, reaching to the posterior coxae. Pronotum with a depressed, curved, rufous margin extending a little over the base of the scutellum ; the lateral margins notched behind the swollen anterior lobe; the humeral angles prominent, rounded, with a callous long submargin ; the middle line impressed, and each side of it with a few coarse punctures anteriorly and with a group of less coarse ones posteriorly; the reflexed lateral margin and underside of collum rufous. Scutellum dull fuscous, rough and uneven ; legs testaceous, a little dusky on the knees, tibiae, and tarsi. Hemelytra scarcely longer than the abdomen, obscurely sericeous pubescent, pale smoke-brown at base, fuscous at tip, with a stripe of white running out from the base of the clavus, and a longer pale streak on the subcostal long areole; the membrane pale fuscous, with a pale spot each side next the cuneus; the margin of the entire wing-coverts, including the membrane, also pale next the tip ; there is in some specimens a faint trace of another spot. Venter polished, fuscous black, minutely sericeous pubescent, with a slender black stripe along the middle. Length to tip of venter 2|-2^ mm.; width of pronotum 1 mm. Three specimens of this insect were captured on the Mount Gay estate and Balthazar in June and August. During the latter month they occurred at the roots of grass, on muddy ground near pools of water. This species is a common one which has been met with in the Atlantic States and the West Indies, and it also occurs in California and "Washington State. In Maryland it lives on the damp sand or mud of small pools beside streams of water, in spring and late summer. The unwinged individuals may be found |