TAXONOMIC STUDY OF MOEDELLIDAE — RAY 287 



Length: 2.3 mm.; including anal style, 3.2 nun. Form narrow, 

 elongate, sides subparallel to within one-fourth of apex of elytra, 

 broadest near base of pronotum. Head, pronotum, antennae, mouth 

 parts, legs, last two ventral abdominal segments and anal style, middle 

 of mesosternum and metasternum, and a rounded, oblique, subbasal 

 spot on elytra reaching lateral margins but not suture, flavocastane- 

 ous; elytra, sides of mesosternum and metasternum, basal abdominal 

 segments, and eyes, piceous-black. Body densely covered w^ith fine, 

 j'exiumbent pubescence, partaking of ground color, except on elytra, 

 where it forms the following whitish vittae: covering subbasal 

 rounded spot mentioned above, and broad, transverse, postmedian 

 vitta, reaching both lateral margins and suture, and prolonged an- 

 teriorly near suture to form a blunt, rounded area. 



Antennae 0.7 mm. long, filiform, reaching metacoxae; segments 3 

 and 4 equal in length, latter somewhat broader; 5-10 each one-half 

 longer and nuicli broader than 4; 11 one-third longer than 10, sides 

 and apex rounded, broadest postmedially. Distal segment of maxil- 

 lary palpi enlarged, subrectangnlar, slightly narrower subapically, 

 lateral margin slightly convex, mesal margin slightly concave, 

 apical margin subangulate, corners at both apex and base rounded, 

 two and two-thirds times as long as broad (fig. 16, c). Pronotum one- 

 third broader than long (0.8 by 0.6 mm.), sides and apex rounded, 

 basal angles obtuse, base arcuate, midbasal lobe short, but rounded. 

 Scutellum moderately large, rounded-triangular, broader than long, 

 sides and apical angle rounded. Elytra slightly more than twice as 

 long as broad (1.7 by 0.8 nmi.), sides broadest at base, subparallel to 

 within a fourth of apex, thence strongly rounded, apices individually 

 rounded. Intermediate tibiae and tarsi approximately equal in 

 length ; penultimate segment of anterior and intermediate tarsi short, 

 filiform, simple. Posterior tibiae with two short, oblique ridges, 

 neither extending more than one-third across outer surface ; basitarsi 

 with two short ridges extending one-third across outer surface. 

 Tarsal claws with three long, acute, postmedian teeth (fig. 18, a). 

 Anal style two and one-fourth times length of apical ventral segment 

 (0.9 by 0.4 mm.), narrow, evenly attenuate to apex; last ventral seg- 

 ment about twice length of penultimate one. 



Type locality. — Guatemala. 



ry/>6.— Male, U.S.N.M. No. 52938. 



R&nuvrks. — The type and two male paratypes, all with protruding 

 genitalia, were taken at Washington, D. C, October 17, 1916, upon 

 emergence from the rhizome of Rhenolepis sp. received fi"om Guate- 

 mala (H. L. Sanford) . 



J65175— 39 3 



