MONIEZIELLA LONGIPES N. SP, 28 



Genus MONIEZIELLA Berlese. 



A suture between cephalothorax and abdomen; mandibles large, 

 chelate; tarsi with distinct claws; cuticle without granulations; ven- 

 tral apertures small; but two distinct posterior bristles on the cepha- 

 lothorax; tarsi without spines; male with ventral suckers; abdomen 

 usually more elongate than in Tyroglyphus. All the species so far 

 known are predaceous or feed on recentl}" killed animal matter. 



Type. — M. entornoj)hagu)< Lab. 



The genus IHstiogaster is based on JL <(irpi(> Kramer, a species with 

 spiny tarsi, a peculiar male abdomen, and of very different habits; so 

 that I retain Monlezlella as distinct from it. 



There are probably from live to ten species in our fauna. I have 

 recognized the following three species: 



Table of the Species. 



1. Body about three or four times as long as l)roacl; apparently no cephalic nor 



humeral bristles anguffta 



Body scarcely twice as long as broad; cephalii' and humeral bristles distinct. . 2 



2. Tarsi barely longer than preceding joint breritarsis 



Tarsi nearly twice as long as preceding joint longlpes 



Monlezlella angusta n. sp. (PI. II, tig. 15.) 



Body three to four times as long as })road; apparentl}" without any 

 cephalic or humeral bristles, and only four short ones near the tip of 

 abdomen. Legs very short; tarsi not longer than the penultimate 

 joint; the bristle from this joint longer than tarsi, especially in the 

 anterior legs, where it is very prominent. 



Length, 0.30 to 0.35 mm. 



Specimens taken from under scale insects {Asp id lot us) at Haywood, 

 Cal., and stated to be feeding on the coccids and their eggs. 



This is probably what Doctor Riley tigures in the Fifth Missouri 

 Report as Tyroglyphus malus; however, his figure shows some bristles 

 on the head which I can not see in the specimens before me. Michael 

 has identified Riley's species with the European M. { Hi st log aster) 

 entomopKagus; but MichaeFs figures show a form very different; 

 more elongate and with shorter bristles. The TyrogJyjtJms mahis of 

 Lignieres is probably a MoniezielJcu but a difi'erent species, perhaps 

 M. entotnophagK.s^ as asserted by Michael. 



Monlezlella longlpes n. sp. (PI. II, fig. 13.) 



Cephalothorax with a pair of frontal bristles, and a pair of very 

 long posterior bristles; a long, fine humeral bristle each side; two 

 shorter bristles on the margin, and four rather long bristles near tip 

 of body, the inner pair nearly as long as the abdomen. Legs rather 

 slender, and the tarsi nearly as long as the preceding two joints 



