Key to genera and species of Eucinetidae occurring in Australia

1. Elytra without transverse strigulae (Figs 89–90); ratio of body length to elytral width less than 1.60 (Figs 30–33); ratio of greatest depth to elytral width usually greater than 0.70; posterior edge of mesoventrite rounded (Fig. 102); anterior edge of labrum broadly rounded with small median notch (Figs 125–126); hind wings highly reduced or absent; parameres much shorter than penis (Figs 140–142).................................................... Noteucinetus Bullians & Leschen … 2

- Elytra with transverse strigulae (Figs 77–88); ratio of body length to elytral width greater than 1.60 (Figs 1–29); ratio of greatest depth to elytral width usually less than 0.70; posterior edge of mesoventrite notched (Fig. 101); anterior edge of labrum more or less truncate, without median notch (Figs 123, 127); hind wings well-developed or absent; parameres more or less equal in length to penis (Figs 128–139)................................................. Eucinetus Germar … 3

2(1). Length greater than 1.40 mm; body more than 1.4 times as long as elytral width; elytra reddish brown to dark brown or black, with reddish stripe along elytral suture (Figs 32–33); mesotibia in both sexes with two spurs, one of which in male is apically widened and cleft (Fig. 108); free portion of paramere narrow and parallel-sided; Victoria (Figs 140–141)................................................................................................... N. victoriae sp. nov.

- Length less than 1.40 mm; body less than 1.4 times as long as elytral width; elytra yellow or yellow with black markings (Figs 30–31); mesotibia in both sexes with one acute spur; free portion of paramere broad at base and narrowing towards subacute apex; northern NSW and southern QLD (Fig. 142)........................................... N. ornatus sp. nov.

3(1). Metanepisternum almost as long as or longer than mesepimeron and at least twice as long as wide (Fig. 96); hind wings welldeveloped; inner eye margin with distinct notch (Fig. 35); scutellar shield somewhat rounded at apex (Fig. 100)......... 4

- Metanepisternum distinctly shorter than mesepimeron and about as long as wide (Fig. 95); hind wings absent; inner eye margin without distinct notch (Fig. 34); scutellar shield sharply acute at apex (Fig. 103)................................... 7

4(3). Body less than 1.90 times as long as wide; elytra less than 1.57 times as long as wide; apical maxillary palpomere widest at middle and acute at apex (Figs 62, 65).................................................................... 5

- Body more than 1.90 times as long as wide; elytra more than 1.57 times as long as wide; apical maxillary palpomere widened and obliquely truncate apically (Figs 57–58, 63); pronotum red and elytra black (Figs 15–16, 20–23).................. 6

5(4). Upper surfaces entirely black (Figs 24–25); 11th antennomere less than 1.8 times as long as wide (Fig. 45); northern QLD.............................................................................. Eucinetus nebulosus sp. nov.

- Head, pronotum and scutellar shield red, elytra black (Figs 28–29); 11th antennomere more than 2.00 times as long as wide (Fig. 51); northern QLD.......................................................... Eucinetus tropicus sp. nov.

6(4). Head at least partly black (Fig. 16); apical maxillary palpomere less than 1.4 times as long as wide and more strongly, obliquely expanded apically (Figs 57–58); 3rd antennomere only slightly shorter than 4th (Fig. 36); 11th antennomere less than 1.5 times as long as wide (Fig. 47); central NSW to northern QLD............................. Eucinetus lorien sp. nov.

- Head red (Fig. 23); apical maxillary palpomere more than 1.6 times as long as wide and less strongly, obliquely expanded apically (Fig. 63); 3rd antennomere much shorter than 4th; 11th antennomere more than 1.7 times as long as wide (Fig. 49); NSW, ACT, VIC, TAS............................................................. Eucinetus similis sp. nov.

7(3). Upper surfaces of pronotum and elytra uniformly dark brown or black; length less than 1.85 mm and elytra less than 1.44 times as long as wide; VIC (Figs 17–19).................................................. Eucinetus minutus sp. nov.

- Upper surface of pronotum never dark brown, usually reddish-brown or red; length usually greater than 1.85 mm and elytra more than 1.44 times as long as wide..................................................................... 8

8(7). Pronotum reddish-brown, elytra yellowish-brown (Figs 5–12, 26–27)........................................... 9

- Pronotum red, elytra primarily black (Figs 1–4, 13–14, 28–29)................................................ 11

9(8). Length less than 2.00 mm; apical antennomere (Fig. 42) at least 2.00 times as long as wide; apical maxillary palpomere (Fig. 55) obliquely truncate apically with aciculate tip at one edge; pronotum reddish-brown, elytra yellowish-brown, head dark brown, undersurfaces mostly dark brown (Figs 9–12); parameres distinctly bowed outwardly (Figs 12, 143); NSW...................................................................................... Eucinetus dorrigo sp. nov.

- Length usually greater than 2.00 mm; apical antennomere less than 2.00 times as long as wide; apical maxillary palpomere gradually narrowed apically with aciculate tip in center (Figs. 54, 64); parameres not outwardly bowed (Figs 130, 136)... .. 10

10(9). Apical antennomere (Fig. 41) more than 1.6 times as long as wide; 3rd antennomere distinctly shorter than 4th; sides of elytra more strongly curved; head and pronotum reddish-brown, elytra yellowish-brown and undersurfaces somewhat darker (Figs 5–8); upper surfaces more distinctly curved in lateral view (Fig. 6); length 2.00–2.20 (2.10 ± 0.07) mm; ACT...................................................................................... Eucinetus brindabellae sp. nov.

- Apical antennomere (Fig. 50) less than 1.5 times as long as wide; 3rd antennomere equal in length to 4th; sides of elytra less strongly curved; colour mainly yellowish-brown with legs and antennae yellow (Figs 26–27); upper surfaces very slightly curved in lateral view (Fig. 27); length 1.80–2.30 (2.06 ± 0.18) mm; TAS................. Eucinetus tasmaniae sp. nov.

11(8). Length almost always 2.00 mm or less; head, pronotum and scutellar shield red; elytra primarily black (Figs 3–4, 23).... 12

- Length greater than 2.00 mm; head always black (Figs 1–2, 13–14)............................................ 13

12(11). Male protibia and basal protarsomeres distinctly expanded (Figs 92, 99); terminal antennomere at least 1.9 times as long as wide, parallel-sided and apically truncate (Fig. 44); parameres at middle distinctly narrower than penis at same point, strongly converging and slightly expanded apically; penis widest at subapex and then narrowed to acute apex (Fig. 137); eastern VIC............................................................................ Eucinetus protibialis sp. nov.

- Male protibia and basal protarsomeres not expanded; terminal antennomere about 1.5 times as long as wide and broadly rounded at apex (Fig. 39); parameres at middle as wide as or slightly wider than penis at same point; penis not expanded subapically (Fig. 129); TAS....................................................... Eucinetus bicolorellus sp. nov.

13(11). Pronotum red; head, scutellar shield, elytra and undersides black (Figs 1–2); length usually less than 2.40 mm and body usually less than 1.80 times as long as combined elytral width; apical antennomere broadly rounded at apex (Fig. 40); VIC....................................................................................... Eucinetus bicolor sp. nov.

- Pronotum, scutellar shield and sides of elytra red; head and most of elytra black (Figs 13–14); length usually greater than 2.30 mm and body more than 1.80 times as long as combined elytral width; apical antennomere subtrunacte at apex (Fig. 43); northern NSW, southern QLD..................................................... Eucinetus limitaris sp. nov.