S. Mahunka szerk.: Folia Entomologica Hungarica 44/2. (Budapest, 1983)

Diastolinus sallei Mulsant & Rey, 1859 (Fig. 13) MULSANT & REY (1859): Opusc. ent., 9: 80. Examined specimen: Anguilla. Length 2, 6 mm; strongly sclerotized, dark, not very convex dorsally, the apicale long compared with the basale (A:B = 0,45). The apicale rather thick, sinuate (in lateral view), at the apex very little narrowed, with a rounded apex through which it is easily distinguishable from D.puncticollis

. Parameres rectilinear, narrowed before the apex, this is rather rounded. Aedeagus well visible, broad at the base and then abruptly narrowed towards the apex, which is rather pointed (though less than in D. puncticollis)

. Note. In the figure the length of the basale due to its dorsal convexity is possibly a little inferior to the real one. Diastolinus sp. (Fig. 14) Examined specimen: La Désirade, Pointe Doublé. Length 3, 4 mm; strongly sclerotized, dark, very convex dorsally, with a slender sinuate apicale narrowed at tip and bent upward. Basale much longer than apicale (A:B = 0,29); parameres short, broad, with slightly curved sides, at the apex almost truncate, separated only near the apex (i.e. almost interely fused). Aedeagus not visible (in dorsal view). Diastolinus minor Marcuzzi, 1977 (Fig. 15) MARCUZZI (1977): Studies on the fauna of Curacao and other Caribbean Islands, No. 170: 18,pl.2e-f. Examined specimen: Little Cayman, NE point, Bluff at Callabash Spot. Sclerotized, rather long (2, 78 mm long), with a body size of 6, 5 mm. Dorsally convex, slender, the apicale well developed, rather broad, narrowed towards the apex which is abruptly bent upwards and pointed. Basale with rather parallel sides, apicale long, with the sides sinuate in the middle, then dilated towards the apex; the latter is subtruncate. The parameres seem to be separated only at the apex, so that the aedeagus is well visible, long, lanceolate, pointed at the tip. Diastolinus mulsanti Marcuzzi, 1971 (Fig. 16) MARCUZZI (1971): Annls zool.-ecol.anim., 3 (1): 79, nom.n. for D.hummelinchi Marcuzzi, 1962, nec D. hummelinchi Marcuzzi, 1950. Examined specimen: St. Thomas, Bolongo Bay. Normally developed (2, 76 mm), sclerotized, very little convex dorsally, slender, with an apicale gradually narrowed towards the apex; this is pointed but not bent upwards. Basale in dorsal view rather broad, gradually and little narrowed towards apex. Apicale gradually narrowed in a continuous line with basale up to the apex, where it is somewhat pointed. Parameres apparently separated only near the apex. Aedeagus well visible, long, lanceolate, pointed at the tip. A specimen from St. John shows a quite similar aedeagus. Diastolinus perforatus (C.R.Sahlberg, 1823) (Fig. 17) SAHLBERG, C.R. (1823): Peric. ent. spec. ins. nondum descr. propos.: 15 (Opatrum). Examined specimen: St. Martin, Mildrum Cul de Sac. Normally developed (2,47 mm long), sclerotized, only slightly convex dorsally, slender. Apicale highly characteristic because of a widening near the base, after which first gradually, then abruptly narrowed, a little bent towards the apex; this is quite pointed. Basale broad and rather short (A:B = 0,45), only slightly narrowed towards the apex. Apicale gradually widened towards apex, slightly sinuate and rounded before apex; the latter is truncate as in no other species of the genus. Parameres well divided, the aedeagus is visible between, lanceolate, only feebly pointed.