BRACHYGLUTINI 149 



the fifth segment only abnormally formed. The females have the antennae 



normal. The two species may be separated as follows: 



Each elytron with three basal foveae diversula 



Each elytron with two basal foveae stroheckeri new species 



Reichenbachia stroheckeri new species 



Holotype Male. Measurements: head 0.22 x 0.36 mm.; antennae 0.87 mm.; 

 pronotum 0.31 x 0.38 mm.; elytra 0.53 x 0.7 mm.; abdomen 0.46 x 0.6 mm.; 

 first visible tergite 0.26 x 0.6 mm.; total length 1.52 mm.; greatest width 

 0.7 mm. (PI. XVI, 8, 9) 



Integument yellowish-brown, shining, lightly punctulate with short (0.016 

 to 0.033 mm.), moderately abundant pubescence. Eyes prominent, three times 

 as long as tempora, with about 30 coarse facets. Tempora short, convergent, 

 with subtnmcate posterior angles. Vertex with two foveae between the eyes, 

 these foveae being pubescent and large, e.g. a diameter equal to two eye facets 

 united, free with no intrafoveal sulcus. Front almost vertically declivous be- 

 tween the antennal bases, the declivity glabrous, slightly concave. Absolutely 

 no trace of a frontal fovea, pit, or foveoid depression between frontal margin 

 and epistome. This total lack of a frontal fovea separates this species from 

 appendiculata Raffray and allies. Epistome erected into a prominent, obtuse, 

 glabrous, slightly recurved horn, forming a transverse sulcus or cleft between 

 the declivous front and the epistome. This epistomal structure effectually 

 separates this species from diversula Raffray and appendiculata Raffray as 

 described. The epistomal tubercle is probably a male secondary sex char- 

 acter. Labnim small, transverse, tumid, the anterior margin medianly con- 

 cave. Mandibles normal, not dilated and without external teeth or tubercles, 

 bases exposed each side of labrum. Ventral surface of head triangular, sub- 

 glabrous, with a median, longitudinal, poorly-defined carina. A minute gular 

 fovea on each side of this carina, at its extreme base. 



Maxillary palpi normal for genus, four-segmented; first segment minute, 

 cylindrical; second elongate-pyriforra, arcuate, basally slender and gradually 

 expanded in apical half to apex; third short, subtriangular, mesial face sub- 

 acute, lateral face strongly convex, wider than second segment ; fourth segment 

 largest, longer than second and wider than third, obliquely truncate at base, 

 subacute at apex, bearing a short pelpal cone, mesial face nearly straight, 

 lateral face convex, cylindrico-conical in outline. 



Antennae abnormal, eleven-segmented, longer than pronotum and elytra 

 united, rather widely separated by a distance equal to that from the center 

 of one vertexal fovea to the center of the other (0.134 mm.) ; segment I 

 oblong, dorsally concave; II longer than wide, narrower than first, sub- 

 obconical; III short, transversely obconical; IV as long as third but much 

 wider, twice as wide as long, slightly asymmetrical; V large, distinctly wider 

 than fourth and four times as long, the dorsal surface strongly biconvex or 

 dumb-bell shaped, the ventral face constricted in apical third, and bearing a 



