Micreriodes guamensis Yoshimoto

Carl M. Yoshimoto, 1962, Hymenoptera: Eucoilinae (Cynipoidea), Insects of Micronesia 19 (3), pp. 89-107 : 96-97

5. Micreriodes guamensis Yoshimoto , n. sp. ( fig. 4).

Female: Ferrugineus to brownish; legs and antennal segments 1 and 2 testaceous.

Front view of head as in figure 4, c; malar space equal to one-third height of eye; hairs on frons evenly spaced, forming a column at each side extending from base of antenna to posterior margin of clypeus; several short hairs evenly spaced on anterior margin of clypeus. Surface of mandible with several short hair tufts near base. Segments of antennal club striate, globose, except apical segment which is elliptical; antennal segments 1 and 2 are 1.5 times as long as broad, segment 3 shorter than 2; segments 4 to 7 subequal in length, but shorter than 3 and together shorter than club. Pronotal plate small, ovate with a slight median emargination on dorsal margin. Mesonotum with several scattered fine short hairs. Pronotum with dense woolly hairs along latero-anterior margin. Posterior part of metapleuron with several long fine hairs mixed with woolly hairs. Scutellar disc smooth on anterior part of lateral margin and punctate rugose at posterior end; apical portion of lateral bar acuminate and reaching three-fourths distance of cup. Scutellar cup 3 times as long as broad, surface slightly concave with two minute hairs on anterior part of lateral margin and a small pit at posterior end. Propodeum with two parallel raised lines; lateral areas of raised lines with dense woolly hairs. Abdomen 1.5 times as long as broad. Tergites 3 and 4 distinctly exposed at apex. Length 0.6 mm.; forewing 0.9 mm.

Male: Unknown.

Holotype, female (US 66363), Oriote Pt, Guam, Oct. 29, 1947, Dybas. Paratypes, 2 females, Oriote Pt., Guam, “drowned in basin,” Oct. 29, 1947, Dybas.

DISTRIBUTION: S. Mariana Is. (Guam).